qa: Add Turtle 1.3.2 mocking framework

5 years ago · a65999b063
55 changed files with 4435 additions and 0 deletions
--- a/qa/qa_utils/include/qa_utils/wx_utils/unit_test_utils.h
+++ b/qa/qa_utils/include/qa_utils/wx_utils/unit_test_utils.h
@ -24,7 +24,10 @@
 #ifndef UNIT_TEST_UTILS__H
 #define UNIT_TEST_UTILS__H

+#define BOOST_NO_AUTO_PTR
+
 #include <boost/test/unit_test.hpp>
+#include <turtle/mock.hpp>

 #include <qa_utils/wx_utils/wx_assert.h>

--- a/thirdparty/CMakeLists.txt
+++ b/thirdparty/CMakeLists.txt
@ -41,3 +41,4 @@ add_subdirectory( picosha2 )
 add_subdirectory( json_schema_validator )
 add_subdirectory( pegtl )
 add_subdirectory( 3dxware_sdk )
+add_subdirectory( turtle )
--- a/thirdparty/turtle/BOOST.LICENSE_1_0.txt
+++ b/thirdparty/turtle/BOOST.LICENSE_1_0.txt
@ -0,0 +1,23 @@
+Boost Software License - Version 1.0 - August 17th, 2003
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
--- a/thirdparty/turtle/CMakeLists.txt
+++ b/thirdparty/turtle/CMakeLists.txt
@ -0,0 +1,3 @@
+add_library( turtle INTERFACE )
+
+target_include_directories( turtle INTERFACE ${CMAKE_CURRENT_SOURCE_DIR} )
--- a/thirdparty/turtle/README.txt
+++ b/thirdparty/turtle/README.txt
@ -0,0 +1,6 @@
+This directory contains the Turtle Mocking Framework version 1.3.2 (0dd0dfa15fbc2774213523fb3a65bc1acb2857b3)
+from https://github.com/mat007/turtle
+
+Turtle is a C++ mock object library based on Boost with a focus on usability, simplicity and flexibility.
+
+Distributed under the Boost Software License, Version 1.0, with license text in this directory.
--- a/thirdparty/turtle/turtle/catch.hpp
+++ b/thirdparty/turtle/turtle/catch.hpp
@ -0,0 +1,46 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon and Ovanes Markarian 2017
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_CATCH_HPP_INCLUDED
+#define MOCK_CATCH_HPP_INCLUDED
+
+#include <catch.hpp>
+
+template<typename Result>
+struct catch_mock_error_policy
+{
+    static Result abort()
+    {
+        FAIL("Aborted");
+        throw std::runtime_error("unreachable");
+    }
+
+    template<typename Context>
+    static void fail(const char* message,
+                     const Context& context,
+                     const char* file = "file://unknown-location",
+                     int line = 0)
+    {
+        CAPTURE(context);
+        FAIL_CHECK(message << " in: " << file << ":" << line);
+    }
+
+    template<typename Context>
+    static void call(const Context& context, const char* file, int line)
+    {
+        CAPTURE(context);
+        INFO(file << ":" << line);
+    }
+
+    static void pass(const char* file, int line) { INFO(file << ":" << line); }
+};
+
+#define MOCK_ERROR_POLICY catch_mock_error_policy
+#include "mock.hpp"
+
+#endif // MOCK_CATCH_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/cleanup.hpp
+++ b/thirdparty/turtle/turtle/cleanup.hpp
@ -0,0 +1,34 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_CLEANUP_HPP_INCLUDED
+#define MOCK_CLEANUP_HPP_INCLUDED
+
+#include "config.hpp"
+#include "reset.hpp"
+#include "verify.hpp"
+#ifdef MOCK_USE_BOOST_TEST
+#    include <boost/test/unit_test_suite.hpp>
+#endif
+
+namespace mock {
+struct cleanup
+{
+    ~cleanup() { mock::reset(); }
+};
+
+#ifdef MOCK_USE_BOOST_TEST
+BOOST_GLOBAL_FIXTURE(cleanup)
+#    if BOOST_VERSION >= 105900
+  ;
+#    endif
+#endif
+
+} // namespace mock
+
+#endif // MOCK_CLEANUP_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/config.hpp
+++ b/thirdparty/turtle/turtle/config.hpp
@ -0,0 +1,33 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2009
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// boost-no-inspect
+
+#ifndef MOCK_CONFIG_HPP_INCLUDED
+#define MOCK_CONFIG_HPP_INCLUDED
+
+#include <boost/config.hpp>
+
+#ifndef MOCK_ERROR_POLICY
+#    define MOCK_ERROR_POLICY mock::error
+#    define MOCK_USE_BOOST_TEST
+#endif
+
+#if !defined(BOOST_NO_CXX11_HDR_MUTEX) && !defined(BOOST_NO_0X_HDR_MUTEX)
+#    ifndef MOCK_NO_HDR_MUTEX
+#        define MOCK_HDR_MUTEX
+#    endif
+#endif
+
+#if defined(__cpp_lib_uncaught_exceptions) || defined(_MSC_VER) && (_MSC_VER >= 1900)
+#    ifndef MOCK_NO_UNCAUGHT_EXCEPTIONS
+#        define MOCK_UNCAUGHT_EXCEPTIONS
+#    endif
+#endif
+
+#endif // MOCK_CONFIG_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/constraint.hpp
+++ b/thirdparty/turtle/turtle/constraint.hpp
@ -0,0 +1,188 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_CONSTRAINT_HPP_INCLUDED
+#define MOCK_CONSTRAINT_HPP_INCLUDED
+
+#include "config.hpp"
+#include "log.hpp"
+#include "unwrap_reference.hpp"
+#include <boost/preprocessor/array.hpp>
+#include <boost/preprocessor/control/if.hpp>
+#include <boost/preprocessor/repetition/enum.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/stringize.hpp>
+#include <boost/preprocessor/variadic/size.hpp>
+#include <functional>
+#include <type_traits>
+
+namespace mock {
+template<typename Constraint>
+struct constraint
+{
+    constraint() {}
+    constraint(const Constraint& c) : c_(c) {}
+    Constraint c_;
+};
+
+namespace detail {
+    template<typename Lhs, typename Rhs>
+    class and_
+    {
+    public:
+        and_(const Lhs& lhs, const Rhs& rhs) : lhs_(lhs), rhs_(rhs) {}
+        template<typename Actual>
+        bool operator()(const Actual& actual) const
+        {
+            return lhs_(actual) && rhs_(actual);
+        }
+        friend std::ostream& operator<<(std::ostream& s, const and_& a)
+        {
+            return s << "( " << mock::format(a.lhs_) << " && " << mock::format(a.rhs_) << " )";
+        }
+
+    private:
+        Lhs lhs_;
+        Rhs rhs_;
+    };
+
+    template<typename Lhs, typename Rhs>
+    class or_
+    {
+    public:
+        or_(const Lhs& lhs, const Rhs& rhs) : lhs_(lhs), rhs_(rhs) {}
+        template<typename Actual>
+        bool operator()(const Actual& actual) const
+        {
+            return lhs_(actual) || rhs_(actual);
+        }
+        friend std::ostream& operator<<(std::ostream& s, const or_& o)
+        {
+            return s << "( " << mock::format(o.lhs_) << " || " << mock::format(o.rhs_) << " )";
+        }
+
+    private:
+        Lhs lhs_;
+        Rhs rhs_;
+    };
+
+    template<typename Constraint>
+    class not_
+    {
+    public:
+        explicit not_(const Constraint& c) : c_(c) {}
+        template<typename Actual>
+        bool operator()(const Actual& actual) const
+        {
+            return !c_(actual);
+        }
+        friend std::ostream& operator<<(std::ostream& s, const not_& n) { return s << "! " << mock::format(n.c_); }
+
+    private:
+        Constraint c_;
+    };
+} // namespace detail
+
+template<typename Lhs, typename Rhs>
+const constraint<detail::or_<Lhs, Rhs>> operator||(const constraint<Lhs>& lhs, const constraint<Rhs>& rhs)
+{
+    return detail::or_<Lhs, Rhs>(lhs.c_, rhs.c_);
+}
+
+template<typename Lhs, typename Rhs>
+const constraint<detail::and_<Lhs, Rhs>> operator&&(const constraint<Lhs>& lhs, const constraint<Rhs>& rhs)
+{
+    return detail::and_<Lhs, Rhs>(lhs.c_, rhs.c_);
+}
+
+template<typename Constraint>
+const constraint<detail::not_<Constraint>> operator!(const constraint<Constraint>& c)
+{
+    return detail::not_<Constraint>(c.c_);
+}
+} // namespace mock
+
+#define MOCK_UNARY_CONSTRAINT(Name, n, Args, Expr)                                                               \
+    namespace detail {                                                                                           \
+        struct Name                                                                                              \
+        {                                                                                                        \
+            template<typename Actual>                                                                            \
+            bool operator()(const Actual& actual) const                                                          \
+            {                                                                                                    \
+                (void)actual;                                                                                    \
+                return Expr;                                                                                     \
+            }                                                                                                    \
+            friend std::ostream& operator<<(std::ostream& s, const Name&) { return s << BOOST_STRINGIZE(Name); } \
+        };                                                                                                       \
+    }                                                                                                            \
+    const mock::constraint<detail::Name> Name;
+
+#define MOCK_CONSTRAINT_ASSIGN(z, n, d) expected##n(std::forward<T##n>(e##n))
+
+#define MOCK_CONSTRAINT_UNWRAP_REF(z, n, d) mock::unwrap_ref(expected##n)
+
+#define MOCK_CONSTRAINT_FORMAT(z, n, d) BOOST_PP_IF(n, << ", " <<, ) mock::format(c.expected##n)
+
+#define MOCK_CONSTRAINT_MEMBER(z, n, d) Expected_##n expected##n;
+
+#define MOCK_CONSTRAINT_TPL_TYPE(z, n, d) std::decay_t<const T##n>
+
+#define MOCK_CONSTRAINT_CREF_PARAM(z, n, Args) \
+    const mock::unwrap_reference_t<Expected_##n>& BOOST_PP_ARRAY_ELEM(n, Args)
+
+#define MOCK_CONSTRAINT_ARG(z, n, Args) T##n&& BOOST_PP_ARRAY_ELEM(n, Args)
+
+#define MOCK_CONSTRAINT_ARGS(z, n, Args) T##n&& e##n
+
+#define MOCK_CONSTRAINT_PARAM(z, n, Args) std::forward<T##n>(BOOST_PP_ARRAY_ELEM(n, Args))
+
+#define MOCK_NARY_CONSTRAINT(Name, n, Args, Expr)                                                                   \
+    namespace detail {                                                                                              \
+        template<BOOST_PP_ENUM_PARAMS(n, typename Expected_)>                                                       \
+        struct Name                                                                                                 \
+        {                                                                                                           \
+            template<BOOST_PP_ENUM_PARAMS(n, typename T)>                                                           \
+            explicit Name(BOOST_PP_ENUM(n, MOCK_CONSTRAINT_ARGS, _)) : BOOST_PP_ENUM(n, MOCK_CONSTRAINT_ASSIGN, _)  \
+            {}                                                                                                      \
+            template<typename Actual>                                                                               \
+            bool operator()(const Actual& actual) const                                                             \
+            {                                                                                                       \
+                return test(actual, BOOST_PP_ENUM(n, MOCK_CONSTRAINT_UNWRAP_REF, _));                               \
+            }                                                                                                       \
+            template<typename Actual>                                                                               \
+            bool test(const Actual& actual, BOOST_PP_ENUM(n, MOCK_CONSTRAINT_CREF_PARAM, (n, Args))) const          \
+            {                                                                                                       \
+                return Expr;                                                                                        \
+            }                                                                                                       \
+            friend std::ostream& operator<<(std::ostream& s, const Name& c)                                         \
+            {                                                                                                       \
+                return s << BOOST_STRINGIZE(Name) << "( " << BOOST_PP_REPEAT(n, MOCK_CONSTRAINT_FORMAT, _) << " )"; \
+            }                                                                                                       \
+            BOOST_PP_REPEAT(n, MOCK_CONSTRAINT_MEMBER, _)                                                           \
+        };                                                                                                          \
+    }                                                                                                               \
+    template<BOOST_PP_ENUM_PARAMS(n, typename T)>                                                                   \
+    mock::constraint<detail::Name<BOOST_PP_ENUM(n, MOCK_CONSTRAINT_TPL_TYPE, _)>> Name(                             \
+      BOOST_PP_ENUM(n, MOCK_CONSTRAINT_ARG, (n, Args)))                                                             \
+    {                                                                                                               \
+        return detail::Name<BOOST_PP_ENUM(n, MOCK_CONSTRAINT_TPL_TYPE, _)>(                                         \
+          BOOST_PP_ENUM(n, MOCK_CONSTRAINT_PARAM, (n, Args)));                                                      \
+    }
+
+#define MOCK_CONSTRAINT_EXT(Name, n, Args, Expr) \
+    BOOST_PP_IF(n, MOCK_NARY_CONSTRAINT, MOCK_UNARY_CONSTRAINT)(Name, n, Args, Expr)
+
+#define MOCK_CONSTRAINT_AUX_AUX(Name, n, Array) \
+    MOCK_CONSTRAINT_EXT(Name, n, BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_POP_BACK(Array)), BOOST_PP_ARRAY_ELEM(n, Array))
+
+#define MOCK_CONSTRAINT_AUX(Name, Size, Tuple) MOCK_CONSTRAINT_AUX_AUX(Name, BOOST_PP_DEC(Size), (Size, Tuple))
+
+#define MOCK_CONSTRAINT(Name, ...) MOCK_CONSTRAINT_AUX(Name, BOOST_PP_VARIADIC_SIZE(__VA_ARGS__), (__VA_ARGS__))
+
+#endif // MOCK_CONSTRAINT_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/constraints.hpp
+++ b/thirdparty/turtle/turtle/constraints.hpp
@ -0,0 +1,253 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_CONSTRAINTS_HPP_INCLUDED
+#define MOCK_CONSTRAINTS_HPP_INCLUDED
+
+#include "config.hpp"
+#include "constraint.hpp"
+#include "detail/void_t.hpp"
+#include "unwrap_reference.hpp"
+#include <boost/version.hpp>
+#if BOOST_VERSION >= 107000
+#    include <boost/test/tools/floating_point_comparison.hpp>
+#else
+#    include <boost/test/floating_point_comparison.hpp>
+#endif
+#include <functional>
+#include <memory>
+#include <type_traits>
+
+namespace mock {
+MOCK_UNARY_CONSTRAINT(any, 0, , ((void)actual, true))
+MOCK_UNARY_CONSTRAINT(affirm, 0, , !!actual)
+MOCK_UNARY_CONSTRAINT(negate, 0, , !actual)
+MOCK_UNARY_CONSTRAINT(evaluate, 0, , actual())
+
+MOCK_NARY_CONSTRAINT(less, 1, (expected), actual < expected)
+MOCK_NARY_CONSTRAINT(greater, 1, (expected), actual > expected)
+MOCK_NARY_CONSTRAINT(less_equal, 1, (expected), actual <= expected)
+MOCK_NARY_CONSTRAINT(greater_equal, 1, (expected), actual >= expected)
+
+#if BOOST_VERSION < 105900
+
+#    define MOCK_SMALL() boost::test_tools::check_is_small(actual, tolerance)
+#    define MOCK_PERCENT_TOLERANCE() \
+        boost::test_tools::check_is_close(actual, expected, boost::test_tools::percent_tolerance(tolerance))
+#    define MOCK_FRACTION_TOLERANCE() \
+        boost::test_tools::check_is_close(actual, expected, boost::test_tools::fraction_tolerance(tolerance))
+
+#else // BOOST_VERSION < 105900
+
+namespace detail {
+    template<typename T, typename Tolerance>
+    bool is_small(const T& t, const Tolerance& tolerance)
+    {
+        return boost::math::fpc::small_with_tolerance<T>(tolerance)(t);
+    }
+
+    template<typename T1, typename T2, typename Tolerance>
+    bool is_close(const T1& t1, const T2& t2, const Tolerance& tolerance)
+    {
+        typedef std::common_type_t<T1, T2> common_type;
+        return boost::math::fpc::close_at_tolerance<common_type>(tolerance, boost::math::fpc::FPC_STRONG)(t1, t2);
+    }
+} // namespace detail
+
+#    define MOCK_SMALL() detail::is_small(actual, tolerance)
+#    define MOCK_PERCENT_TOLERANCE() detail::is_close(actual, expected, boost::math::fpc::percent_tolerance(tolerance))
+#    define MOCK_FRACTION_TOLERANCE() detail::is_close(actual, expected, tolerance)
+
+#endif // BOOST_VERSION < 105900
+
+#ifdef small
+#    pragma push_macro("small")
+#    undef small
+#    define MOCK_SMALL_DEFINED
+#endif
+MOCK_NARY_CONSTRAINT(small, 1, (tolerance), (MOCK_SMALL()))
+#ifdef MOCK_SMALL_DEFINED
+#    pragma pop_macro("small")
+#endif
+
+MOCK_NARY_CONSTRAINT(close, 2, (expected, tolerance), (MOCK_PERCENT_TOLERANCE()))
+
+MOCK_NARY_CONSTRAINT(close_fraction, 2, (expected, tolerance), (MOCK_FRACTION_TOLERANCE()))
+
+#undef MOCK_PERCENT_TOLERANCE
+#undef MOCK_FRACTION_TOLERANCE
+
+#ifdef near
+#    pragma push_macro("near")
+#    undef near
+#    define MOCK_NEAR_DEFINED
+#endif
+MOCK_NARY_CONSTRAINT(near, 2, (expected, tolerance), std::abs(actual - expected) <= tolerance)
+#ifdef MOCK_NEAR_DEFINED
+#    pragma pop_macro("near")
+#endif
+
+namespace detail {
+    template<class T, class U = T, class = void>
+    struct has_equal_to : std::false_type
+    {};
+
+    template<class T, class U>
+    struct has_equal_to<T, U, void_t<decltype(std::declval<T>() == std::declval<U>())>> : std::true_type
+    {};
+
+    template<typename Expected>
+    struct equal
+    {
+        explicit equal(Expected expected) : expected_(expected) {}
+        template<typename Actual>
+        bool operator()(const Actual& actual,
+                        std::enable_if_t<has_equal_to<Actual, unwrap_reference_t<Expected>>::value>* = 0) const
+        {
+            return actual == unwrap_ref(expected_);
+        }
+        template<typename Actual>
+        bool operator()(const Actual& actual,
+                        std::enable_if_t<!has_equal_to<Actual, unwrap_reference_t<Expected>>::value>* = 0) const
+        {
+            return actual && *actual == unwrap_ref(expected_);
+        }
+        friend std::ostream& operator<<(std::ostream& s, const equal& e)
+        {
+            return s << "equal( " << mock::format(e.expected_) << " )";
+        }
+        Expected expected_;
+    };
+
+    template<typename Expected>
+    struct same
+    {
+        explicit same(const Expected& expected) : expected_(std::addressof(unwrap_ref(expected))) {}
+        template<typename Actual>
+        bool operator()(const Actual& actual) const
+        {
+            return std::addressof(actual) == expected_;
+        }
+        friend std::ostream& operator<<(std::ostream& os, const same& s)
+        {
+            return os << "same( " << mock::format(*s.expected_) << " )";
+        }
+        const unwrap_reference_t<Expected>* expected_;
+    };
+
+    template<typename Expected>
+    struct retrieve
+    {
+        explicit retrieve(Expected& expected) : expected_(std::addressof(unwrap_ref(expected))) {}
+        template<typename Actual>
+        bool operator()(
+          const Actual& actual,
+          std::enable_if_t<!std::is_convertible<const Actual*, unwrap_reference_t<Expected>>::value>* = 0) const
+        {
+            *expected_ = actual;
+            return true;
+        }
+        template<typename Actual>
+        bool operator()(
+          Actual&& actual,
+          std::enable_if_t<!std::is_convertible<const Actual*, unwrap_reference_t<Expected>>::value>* = 0) const
+        {
+            *expected_ = std::move(actual);
+            return true;
+        }
+        template<typename Actual>
+        bool operator()(Actual& actual,
+                        std::enable_if_t<std::is_convertible<Actual*, unwrap_reference_t<Expected>>::value>* = 0) const
+        {
+            *expected_ = std::addressof(actual);
+            return true;
+        }
+        friend std::ostream& operator<<(std::ostream& s, const retrieve& r)
+        {
+            return s << "retrieve( " << mock::format(*r.expected_) << " )";
+        }
+        unwrap_reference_t<Expected>* expected_;
+    };
+
+    template<typename Expected>
+    struct assign
+    {
+        explicit assign(const Expected& expected) : expected_(expected) {}
+        template<typename Actual>
+        bool operator()(Actual& actual) const
+        {
+            actual = unwrap_ref(expected_);
+            return true;
+        }
+        template<typename Actual>
+        bool operator()(Actual* actual,
+                        std::enable_if_t<std::is_convertible<unwrap_reference_t<Expected>, Actual>::value>* = 0) const
+        {
+            if(!actual)
+                return false;
+            *actual = unwrap_ref(expected_);
+            return true;
+        }
+        friend std::ostream& operator<<(std::ostream& s, const assign& a)
+        {
+            return s << "assign( " << mock::format(a.expected_) << " )";
+        }
+        Expected expected_;
+    };
+
+    template<typename Expected>
+    struct contain
+    {
+        explicit contain(const Expected& expected) : expected_(expected) {}
+        bool operator()(const std::string& actual) const
+        {
+            return actual.find(unwrap_ref(expected_)) != std::string::npos;
+        }
+        friend std::ostream& operator<<(std::ostream& s, const contain& n)
+        {
+            return s << "contain( " << mock::format(n.expected_) << " )";
+        }
+        Expected expected_;
+    };
+} // namespace detail
+
+template<typename T>
+constraint<detail::equal<T>> equal(T&& t)
+{
+    return detail::equal<T>(std::forward<T>(t));
+}
+
+template<typename T>
+constraint<detail::same<T>> same(T& t)
+{
+    return detail::same<T>(t);
+}
+template<typename T>
+constraint<detail::retrieve<T>> retrieve(T& t)
+{
+    return detail::retrieve<T>(t);
+}
+template<typename T>
+constraint<detail::assign<T>> assign(T t)
+{
+    return detail::assign<T>(t);
+}
+template<typename T>
+constraint<detail::contain<T>> contain(T t)
+{
+    return detail::contain<T>(t);
+}
+
+template<typename T>
+constraint<T> call(T t)
+{
+    return constraint<T>(t);
+}
+} // namespace mock
+
+#endif // MOCK_CONSTRAINTS_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/action.hpp
+++ b/thirdparty/turtle/turtle/detail/action.hpp
@ -0,0 +1,137 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_ACTION_HPP_INCLUDED
+#define MOCK_ACTION_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <functional>
+#include <memory>
+#include <type_traits>
+
+namespace mock { namespace detail {
+    template<typename Result, typename Signature>
+    class action_base
+    {
+    private:
+        typedef std::function<Signature> functor_type;
+        typedef std::function<Result()> action_type;
+
+    protected:
+        // Meant to be subclassed and not be directly used
+        // Non-relocatable (contained functions may wrap references/pointers which could be invalidated)
+        action_base() = default;
+        action_base(const action_base&) = delete;
+        action_base(action_base&&) = delete;
+        action_base& operator=(const action_base&) = delete;
+        action_base& operator=(action_base&&) = delete;
+
+    public:
+        const functor_type& functor() const { return f_; }
+        bool valid() const { return f_ || a_; }
+        Result trigger() const { return a_(); }
+
+        void calls(const functor_type& f)
+        {
+            if(!f)
+                throw std::invalid_argument("null functor");
+            f_ = f;
+        }
+
+        template<typename Exception>
+        void throws(Exception e)
+        {
+            a_ = [e]() -> Result { throw e; };
+        }
+
+    protected:
+        void set(const action_type& a) { a_ = a; }
+        template<typename Y>
+        void set(const std::reference_wrapper<Y>& r)
+        {
+            a_ = [r]() -> Result { return r.get(); };
+        }
+
+    private:
+        functor_type f_;
+        action_type a_;
+    };
+
+    /// Type erased value storage
+    struct value
+    {
+        value() = default;
+        value(const value&) = delete;
+        value& operator=(const value&) = delete;
+        virtual ~value() = default;
+    };
+    /// Actual value storage,
+    /// holds an instance of T (stripped of reference qualifiers)
+    template<typename T>
+    struct value_imp : value
+    {
+        using type = std::remove_const_t<std::remove_reference_t<T>>;
+
+        template<typename U>
+        value_imp(U&& t) : t_(std::forward<U>(t))
+        {}
+        type t_;
+    };
+
+    template<typename Result, typename Signature>
+    class action : public action_base<Result, Signature>
+    {
+    public:
+        template<typename Value>
+        void returns(const Value& v)
+        {
+            this->set(std::ref(store(v)));
+        }
+        template<typename Y>
+        void returns(const std::reference_wrapper<Y>& r)
+        {
+            this->set(r);
+        }
+
+        template<typename Value>
+        void moves(Value&& v)
+        {
+            auto vRef = std::ref(store(std::move(v)));
+            this->set([vRef]() { return std::move(vRef.get()); });
+        }
+
+    private:
+        template<typename T>
+        typename value_imp<T>::type& store(T&& t)
+        {
+            v_ = std::make_unique<value_imp<T>>(std::forward<T>(t));
+            return static_cast<value_imp<T>&>(*v_).t_;
+        }
+        template<typename T>
+        std::remove_reference_t<Result>& store(T* t)
+        {
+            v_ = std::make_unique<value_imp<Result>>(t);
+            return static_cast<value_imp<Result>&>(*v_).t_;
+        }
+
+        std::unique_ptr<value> v_;
+    };
+
+    template<typename Signature>
+    class action<void, Signature> : public action_base<void, Signature>
+    {
+    public:
+        action()
+        {
+            this->set([]() {});
+        }
+    };
+
+}} // namespace mock::detail
+
+#endif // MOCK_ACTION_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/addressof.hpp
+++ b/thirdparty/turtle/turtle/detail/addressof.hpp
@ -0,0 +1,36 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2013
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_ADDRESSOF_HPP_INCLUDED
+#define MOCK_ADDRESSOF_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <boost/utility/addressof.hpp>
+
+namespace mock
+{
+namespace detail
+{
+    using boost::addressof;
+
+#ifdef MOCK_NULLPTR
+
+    inline const std::nullptr_t* addressof( const std::nullptr_t& p )
+    {
+        return &p;
+    }
+    inline std::nullptr_t* addressof( std::nullptr_t& p )
+    {
+        return &p;
+    }
+
+#endif
+}
+} // mock
+
+#endif // MOCK_ADDRESSOF_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/child.hpp
+++ b/thirdparty/turtle/turtle/detail/child.hpp
@ -0,0 +1,47 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_CHILD_HPP_INCLUDED
+#define MOCK_CHILD_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "parent.hpp"
+#include "type_name.hpp"
+#include <boost/optional.hpp>
+#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
+#include <ostream>
+
+namespace mock { namespace detail {
+    class child
+    {
+    public:
+        child() : parent_(0) {}
+        void update(parent& p,
+                    boost::unit_test::const_string instance,
+                    boost::optional<type_name> type,
+                    boost::unit_test::const_string name)
+        {
+            if(instance != "?." || name_.empty())
+                p = parent(instance, type);
+            parent_ = &p;
+            name_ = name;
+        }
+        friend std::ostream& operator<<(std::ostream& s, const child& c)
+        {
+            if(c.parent_)
+                s << *c.parent_;
+            return s << c.name_;
+        }
+
+    private:
+        const parent* parent_;
+        boost::unit_test::const_string name_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_CHILD_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/context.hpp
+++ b/thirdparty/turtle/turtle/detail/context.hpp
@ -0,0 +1,42 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_CONTEXT_HPP_INCLUDED
+#define MOCK_CONTEXT_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "type_name.hpp"
+#include <boost/optional.hpp>
+#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
+#include <ostream>
+
+namespace mock { namespace detail {
+    class verifiable;
+
+    class context
+    {
+    public:
+        context() = default;
+        context(const context&) = delete;
+        context& operator=(const context&) = delete;
+
+        virtual ~context() = default;
+
+        virtual void add(const void* p,
+                         verifiable& v,
+                         boost::unit_test::const_string instance,
+                         boost::optional<type_name> type,
+                         boost::unit_test::const_string name) = 0;
+        virtual void add(verifiable& v) = 0;
+        virtual void remove(verifiable& v) = 0;
+
+        virtual void serialize(std::ostream& s, const verifiable& v) const = 0;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_CONTEXT_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/expectation.hpp
+++ b/thirdparty/turtle/turtle/detail/expectation.hpp
@ -0,0 +1,183 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_EXPECTATION_HPP_INCLUDED
+#define MOCK_EXPECTATION_HPP_INCLUDED
+
+#include "../matcher.hpp"
+#include "../sequence.hpp"
+#include "action.hpp"
+#include "invocation.hpp"
+#include "matcher_base.hpp"
+#include <memory>
+#include <tuple>
+#include <type_traits>
+#include <vector>
+
+namespace mock { namespace detail {
+    template<typename... Args>
+    class default_matcher : public matcher_base<Args...>
+    {
+    private:
+        bool operator()(ref_arg_t<Args>...) override { return true; }
+        void serialize(std::ostream& s) const override
+        {
+            constexpr auto arity = sizeof...(Args);
+            for(unsigned i = 0; i < arity; ++i)
+            {
+                if(i)
+                    s << ", ";
+                s << "any";
+            }
+        }
+    };
+
+    template<typename ConstraintPack, typename... Args>
+    class single_matcher;
+
+    template<typename... Constraints, typename... Args>
+    class single_matcher<void(Constraints...), Args...> : public matcher_base<Args...>
+    {
+        static_assert(sizeof...(Args) > 0, "This class is only useful for functions with arguments");
+        static_assert(sizeof...(Constraints) == sizeof...(Args), "Need exactly 1 constraint per argument");
+
+    public:
+        single_matcher(Constraints... constraints) : matchers_(matcher<Args, Constraints>(constraints)...) {}
+
+    private:
+        template<std::size_t... I>
+        bool is_valid_impl(std::index_sequence<I...>, ref_arg_t<Args>... t)
+        {
+            using expander = bool[];
+            bool result = true;
+            (void)expander{ result &= std::get<I>(matchers_)(static_cast<ref_arg_t<Args>>(t))... };
+            return result;
+        }
+        bool operator()(ref_arg_t<Args>... t) override
+        {
+            return is_valid_impl(std::make_index_sequence<sizeof...(Args)>{}, static_cast<ref_arg_t<Args>>(t)...);
+        }
+        template<std::size_t... I>
+        void serialize_impl(std::index_sequence<I...>, std::ostream& s) const
+        {
+            using expander = int[];
+            s << std::get<0>(matchers_);
+            (void)expander{ 0, (s << ", " << std::get<I + 1>(matchers_), 0)... };
+        }
+        void serialize(std::ostream& s) const override
+        {
+            serialize_impl(std::make_index_sequence<sizeof...(Args) - 1>{}, s);
+        }
+
+    private:
+        std::tuple<matcher<Args, Constraints>...> matchers_;
+    };
+
+    template<typename F, typename... Args>
+    class multi_matcher : public matcher_base<Args...>
+    {
+        static_assert(sizeof...(Args) > 0, "This class is only useful for functions with arguments");
+
+    public:
+        multi_matcher(const F& f) : f_(f) {}
+
+    private:
+        bool operator()(ref_arg_t<Args>... t) override { return f_(static_cast<ref_arg_t<Args>>(t)...); }
+        void serialize(std::ostream& s) const override { s << mock::format(f_); }
+
+    private:
+        F f_;
+    };
+
+    template<typename Signature>
+    class expectation;
+
+    template<typename R, typename... Args>
+    class expectation<R(Args...)> : public action<R, R(Args...)>
+    {
+        static constexpr std::size_t arity = sizeof...(Args);
+
+    public:
+        expectation() : expectation("unknown location", 0) {}
+        expectation(const char* file, int line)
+            : invocation_(std::make_unique<unlimited>()), matcher_(std::make_unique<default_matcher<Args...>>()),
+              file_(file), line_(line)
+        {}
+
+        expectation(expectation&&) = default;
+        expectation(expectation const&) = default;
+        expectation& operator=(expectation&&) = default;
+        expectation& operator=(expectation const&) = default;
+
+        ~expectation()
+        {
+            for(auto& sequence : sequences_)
+                sequence->remove(this);
+        }
+
+        void invoke(std::unique_ptr<invocation> i) { invocation_ = std::move(i); }
+
+        template<typename... Constraints>
+        std::enable_if_t<(arity > 0u) && sizeof...(Constraints) == arity> with(Constraints... c)
+        {
+            matcher_ = std::make_unique<single_matcher<void(Constraints...), Args...>>(c...);
+        }
+        template<typename Constraint, std::size_t Arity = arity>
+        std::enable_if_t<(Arity > 1u)> with(const Constraint& c)
+        {
+            matcher_ = std::make_unique<multi_matcher<Constraint, Args...>>(c);
+        }
+
+        void add(sequence& s)
+        {
+            s.impl_->add(this);
+            sequences_.push_back(s.impl_);
+        }
+
+        bool verify() const { return invocation_->verify(); }
+
+        bool is_valid(ref_arg_t<Args>... t) const
+        {
+            return !invocation_->exhausted() && (*matcher_)(static_cast<ref_arg_t<Args>>(t)...);
+        }
+
+        bool invoke() const
+        {
+            for(auto& sequence : sequences_)
+            {
+                if(!sequence->is_valid(this))
+                    return false;
+            }
+            bool result = invocation_->invoke();
+            for(auto& sequence : sequences_)
+                sequence->invalidate(this);
+            return result;
+        }
+
+        const char* file() const { return file_; }
+        int line() const { return line_; }
+
+        friend std::ostream& operator<<(std::ostream& s, const expectation& e)
+        {
+            s << (e.invocation_->exhausted() ? 'v' : '.') << ' ' << *e.invocation_;
+            constexpr bool hasArguments = arity > 0u;
+            if(hasArguments)
+                s << ".with( " << *e.matcher_ << " )";
+            return s;
+        }
+
+    private:
+        std::unique_ptr<invocation> invocation_;
+        std::unique_ptr<matcher_base<Args...>> matcher_;
+        std::vector<std::shared_ptr<sequence_impl>> sequences_;
+        const char* file_;
+        int line_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_EXPECTATION_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/expectation_template.hpp
+++ b/thirdparty/turtle/turtle/detail/expectation_template.hpp
@ -0,0 +1,276 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include "matcher_base_template.hpp"
+
+#define MOCK_EXPECTATION_INITIALIZE(z, n, d) \
+    BOOST_PP_COMMA_IF(n) c##n##_( c##n )
+
+#define MOCK_EXPECTATION_MEMBER(z, n, d) \
+    matcher< T##n, Constraint_##n > c##n##_;
+
+#define MOCK_EXPECTATION_IS_VALID(z, n, d) \
+    BOOST_PP_IF(n, &&,) c##n##_( mock::detail::move_if_not_lvalue_reference< T##n >( a##n ) )
+
+#define MOCK_EXPECTATION_SERIALIZE(z, n, d) \
+    BOOST_PP_IF(n, << ", " <<,) c##n##_
+
+#define MOCK_EXPECTATION_SERIALIZE_ANY(z, n, d) \
+    BOOST_PP_IF(n, << ", " <<,) "any"
+
+#define MOCK_EXPECTATION_PARAM(z, n, Args) \
+    mock::detail::move_if_not_lvalue_reference< T##n >( a##n )
+
+#define MOCK_REF_ARG(z, n, d) \
+    typename ref_arg< T##n >::type a##n
+
+#define MOCK_REF_ARG_T(z, n, d) \
+    typename ref_arg< T##n >::type
+
+namespace mock
+{
+namespace detail
+{
+    template< typename Signature > class default_matcher;
+
+    template<
+        BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename T) >
+    class default_matcher< void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+        : public matcher_base< void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+    {
+    private:
+        virtual bool operator()(
+            BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_REF_ARG_T, _) )
+        {
+            return true;
+        }
+        virtual void serialize( std::ostream& s ) const
+        {
+            s << "" BOOST_PP_REPEAT(MOCK_NUM_ARGS,
+                MOCK_EXPECTATION_SERIALIZE_ANY, _);
+        }
+    };
+
+#ifndef MOCK_NUM_ARGS_0
+
+    template< typename Constraint, typename Signature > class single_matcher;
+
+    template<
+        BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename Constraint_),
+        BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename T)
+    >
+    class single_matcher<
+        void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, Constraint_) ),
+        void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+    >
+        : public matcher_base< void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+    {
+    public:
+        single_matcher(
+            BOOST_PP_ENUM_BINARY_PARAMS(MOCK_NUM_ARGS, Constraint_, c) )
+        : BOOST_PP_REPEAT(MOCK_NUM_ARGS,
+            MOCK_EXPECTATION_INITIALIZE, _)
+        {}
+
+    private:
+        virtual bool operator()(
+            BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_REF_ARG, _) )
+        {
+            return BOOST_PP_REPEAT(MOCK_NUM_ARGS,
+                MOCK_EXPECTATION_IS_VALID, _);
+        }
+        virtual void serialize( std::ostream& s ) const
+        {
+            s << BOOST_PP_REPEAT(MOCK_NUM_ARGS,
+                MOCK_EXPECTATION_SERIALIZE, _);
+        }
+
+    private:
+        BOOST_PP_REPEAT(
+            MOCK_NUM_ARGS, MOCK_EXPECTATION_MEMBER, _)
+};
+
+    template< typename F, typename Signature > class multi_matcher;
+
+    template< typename F,
+        BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename T) >
+    class multi_matcher< F, void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+        : public matcher_base< void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+    {
+    public:
+        multi_matcher( const F& f )
+            : f_( f )
+        {}
+
+    private:
+        virtual bool operator()(
+            BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_REF_ARG, _) )
+        {
+            return f_( BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_EXPECTATION_PARAM, _) );
+        }
+        virtual void serialize( std::ostream& s ) const
+        {
+            s << mock::format( f_ );
+        }
+
+    private:
+        F f_;
+    };
+
+#endif
+
+    template< typename Signature > class expectation;
+
+    template< typename R
+        BOOST_PP_ENUM_TRAILING_PARAMS(MOCK_NUM_ARGS, typename T) >
+    class expectation< R (BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS,T)) >
+        : public action< R, R (BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS,T)) >
+    {
+    public:
+        expectation()
+            : invocation_( boost::make_shared< unlimited >() )
+            , matcher_(
+                boost::make_shared<
+                    default_matcher<
+                        void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+                    >
+                > () )
+            , file_( "unknown location" )
+            , line_( 0 )
+        {}
+        expectation( const char* file, int line )
+            : invocation_( boost::make_shared< unlimited >() )
+            , matcher_(
+                boost::make_shared<
+                    default_matcher<
+                        void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+                    >
+                > () )
+            , file_( file )
+            , line_( line )
+        {}
+
+        ~expectation()
+        {
+            for( sequences_cit it = sequences_.begin();
+                it != sequences_.end(); ++it )
+                (*it)->remove( this );
+        }
+
+        void invoke( const boost::shared_ptr< invocation >& i )
+        {
+            invocation_ = i;
+        }
+
+#ifndef MOCK_NUM_ARGS_0
+        template<
+            BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename Constraint_)
+        >
+        expectation& with(
+            BOOST_PP_ENUM_BINARY_PARAMS(MOCK_NUM_ARGS, Constraint_, c) )
+        {
+            matcher_.reset(
+                new single_matcher<
+                    void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, Constraint_) ),
+                    void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+                >( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, c) ) );
+            return *this;
+        }
+#if MOCK_NUM_ARGS > 1
+        template< typename Constraint >
+        expectation& with( const Constraint& c )
+        {
+            matcher_.reset(
+                new multi_matcher<
+                    Constraint,
+                    void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+                >( c ) );
+            return *this;
+        }
+#endif
+#endif
+
+        void add( sequence& s )
+        {
+            s.impl_->add( this );
+            sequences_.push_back( s.impl_ );
+        }
+
+        bool verify() const
+        {
+            return invocation_->verify();
+        }
+
+        bool is_valid(
+            BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_REF_ARG, _) ) const
+        {
+            return !invocation_->exhausted()
+                && (*matcher_)( BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_EXPECTATION_PARAM, _) );
+        }
+
+        bool invoke() const
+        {
+            for( sequences_cit it = sequences_.begin();
+                it != sequences_.end(); ++it )
+                if( ! (*it)->is_valid( this ) )
+                    return false;
+            bool result = invocation_->invoke();
+            for( sequences_cit it = sequences_.begin();
+                it != sequences_.end(); ++it )
+                (*it)->invalidate( this );
+            return result;
+        }
+
+        const char* file() const
+        {
+            return file_;
+        }
+        int line() const
+        {
+            return line_;
+        }
+
+        friend std::ostream& operator<<(
+            std::ostream& s, const expectation& e )
+        {
+            return s << ( e.invocation_->exhausted() ? 'v' : '.' )
+                << ' ' << *e.invocation_
+#ifndef MOCK_NUM_ARGS_0
+                << ".with( " << *e.matcher_ << " )"
+#endif
+                ;
+        }
+
+    private:
+        typedef std::vector<
+            boost::shared_ptr< sequence_impl >
+        > sequences_type;
+        typedef sequences_type::const_iterator sequences_cit;
+
+        boost::shared_ptr< invocation > invocation_;
+        boost::shared_ptr<
+            matcher_base<
+                void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+            >
+        > matcher_;
+        sequences_type sequences_;
+        const char* file_;
+        int line_;
+    };
+}
+} // mock
+
+#undef MOCK_EXPECTATION_INITIALIZE
+#undef MOCK_EXPECTATION_MEMBER
+#undef MOCK_EXPECTATION_IS_VALID
+#undef MOCK_EXPECTATION_SERIALIZE
+#undef MOCK_EXPECTATION_SERIALIZE_ANY
+#undef MOCK_EXPECTATION_PARAM
+#undef MOCK_REF_ARG
+#undef MOCK_REF_ARG_T
+#undef MOCK_RV_REF
--- a/thirdparty/turtle/turtle/detail/formatter.hpp
+++ b/thirdparty/turtle/turtle/detail/formatter.hpp
@ -0,0 +1,41 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_FORMATTER_HPP_INCLUDED
+#define MOCK_FORMATTER_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "../stream.hpp"
+#include <memory>
+
+namespace mock { namespace detail {
+    template<typename T>
+    struct formatter
+    {
+        explicit formatter(const T& t) : t_(std::addressof(t)) {}
+        void serialize(stream& s) const { detail::serialize(s, *t_); }
+        const T* t_;
+    };
+
+    template<typename T>
+    stream& operator<<(stream& s, const formatter<T>& f)
+    {
+        f.serialize(s);
+        return s;
+    }
+
+    template<typename T>
+    std::ostream& operator<<(std::ostream& s, const formatter<T>& f)
+    {
+        stream ss(s);
+        f.serialize(ss);
+        return s;
+    }
+}} // namespace mock::detail
+
+#endif // MOCK_FORMATTER_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/function.hpp
+++ b/thirdparty/turtle/turtle/detail/function.hpp
@ -0,0 +1,81 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_FUNCTION_HPP_INCLUDED
+#define MOCK_FUNCTION_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "../log.hpp"
+#include "../sequence.hpp"
+#include "context.hpp"
+#include "function_impl.hpp"
+#include "type_name.hpp"
+#include <boost/optional.hpp>
+#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
+#include <ostream>
+
+namespace mock { namespace detail {
+    template<typename Signature>
+    class function;
+
+    template<typename R, typename... Ts>
+    class function<R(Ts...)>
+    {
+    private:
+        typedef function_impl<R(Ts...)> impl_type;
+        typedef typename impl_type::wrapper_type expectation_type;
+        typedef typename impl_type::error_type error_type;
+
+    public:
+        function() : impl_(std::make_shared<impl_type>()) {}
+
+        bool verify() const { return impl_->verify(); }
+        bool verify(const char* file, int line) const
+        {
+            error_type::pass(file, line);
+            return impl_->verify();
+        }
+        void reset() { impl_->reset(); }
+        void reset(const char* file, int line)
+        {
+            error_type::pass(file, line);
+            impl_->reset();
+        }
+
+        expectation_type expect(const char* file, int line)
+        {
+            error_type::pass(file, line);
+            return impl_->expect(file, line);
+        }
+        expectation_type expect() { return impl_->expect(); }
+
+        R operator()(Ts... args) const { return (*impl_)(static_cast<ref_arg_t<Ts>>(args)...); }
+
+        friend std::ostream& operator<<(std::ostream& s, const function& f) { return s << *f.impl_; }
+
+        function& operator()(context& c, boost::unit_test::const_string instance)
+        {
+            impl_->add(c, impl_.get(), instance, boost::none, "");
+            return *this;
+        }
+
+        void configure(context& c,
+                       const void* p,
+                       boost::unit_test::const_string instance,
+                       boost::optional<type_name> type,
+                       boost::unit_test::const_string name) const
+        {
+            impl_->add(c, p, instance, type, name);
+        }
+
+    private:
+        std::shared_ptr<impl_type> impl_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_FUNCTION_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/function_impl.hpp
+++ b/thirdparty/turtle/turtle/detail/function_impl.hpp
@ -0,0 +1,361 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_FUNCTION_IMPL_HPP_INCLUDED
+#define MOCK_FUNCTION_IMPL_HPP_INCLUDED
+
+#include "../error.hpp"
+#include "expectation.hpp"
+#include "mutex.hpp"
+#include "verifiable.hpp"
+#include <boost/test/utils/lazy_ostream.hpp>
+#include <list>
+#include <memory>
+
+#ifndef MOCK_ERROR_POLICY
+#    error no error policy has been set
+#endif
+
+namespace mock { namespace detail {
+    template<typename R, typename E>
+    struct wrapper_base
+    {
+        wrapper_base(E& e) : e_(&e) {}
+
+        template<typename T>
+        void returns(T t)
+        {
+            e_->returns(t);
+        }
+
+        E* e_;
+    };
+    template<typename E>
+    struct wrapper_base<void, E>
+    {
+        wrapper_base(E& e) : e_(&e) {}
+
+        E* e_;
+    };
+    template<typename R, typename E>
+    struct wrapper_base<R*, E>
+    {
+        wrapper_base(E& e) : e_(&e) {}
+
+        void returns(R* r) { e_->returns(r); }
+        template<typename Y>
+        void returns(const std::reference_wrapper<Y>& r)
+        {
+            e_->returns(r);
+        }
+
+        E* e_;
+    };
+
+    inline int exceptions()
+    {
+#ifdef MOCK_UNCAUGHT_EXCEPTIONS
+        using namespace std;
+        return uncaught_exceptions();
+#else
+        return std::uncaught_exception() ? 1 : 0;
+#endif
+    }
+
+    template<typename... Arg>
+    class lazy_args;
+
+    template<typename Signature>
+    class function_impl;
+
+    template<typename R, typename... Args>
+    class function_impl<R(Args...)> : public verifiable, public std::enable_shared_from_this<function_impl<R(Args...)>>
+    {
+    public:
+        typedef safe_error<R, MOCK_ERROR_POLICY<R>> error_type;
+
+    public:
+        function_impl() : context_(0), valid_(true), exceptions_(exceptions()), mutex_(std::make_shared<mutex>()) {}
+        virtual ~function_impl()
+        {
+            if(valid_ && exceptions_ >= exceptions())
+            {
+                for(const auto& expectation : expectations_)
+                {
+                    if(!expectation.verify())
+                    {
+                        error_type::fail("untriggered expectation",
+                                         boost::unit_test::lazy_ostream::instance()
+                                           << lazy_context(this) << lazy_expectations(this),
+                                         expectation.file(),
+                                         expectation.line());
+                    }
+                }
+            }
+            if(context_)
+                context_->remove(*this);
+        }
+
+        virtual bool verify() const
+        {
+            lock _(mutex_);
+            for(const auto& expectation : expectations_)
+            {
+                if(!expectation.verify())
+                {
+                    valid_ = false;
+                    error_type::fail("verification failed",
+                                     boost::unit_test::lazy_ostream::instance()
+                                       << lazy_context(this) << lazy_expectations(this),
+                                     expectation.file(),
+                                     expectation.line());
+                }
+            }
+            return valid_;
+        }
+
+        virtual void reset()
+        {
+            lock _(mutex_);
+            valid_ = true;
+            std::shared_ptr<function_impl> guard = this->shared_from_this();
+            expectations_.clear();
+        }
+
+    private:
+        typedef expectation<R(Args...)> expectation_type;
+
+        class wrapper : public wrapper_base<R, expectation_type>
+        {
+        private:
+            typedef wrapper_base<R, expectation_type> base_type;
+            static constexpr std::size_t arity = sizeof...(Args);
+
+        public:
+            wrapper(const std::shared_ptr<mutex>& m, expectation_type& e) : base_type(e), lock_(m) {}
+            wrapper(const wrapper&) = delete;
+            wrapper(wrapper&& x) = default;
+            wrapper& operator=(const wrapper&) = delete;
+            wrapper& operator=(wrapper&& x) = default;
+            wrapper& once()
+            {
+                this->e_->invoke(std::make_unique<detail::once>());
+                return *this;
+            }
+            wrapper& never()
+            {
+                this->e_->invoke(std::make_unique<detail::never>());
+                return *this;
+            }
+            wrapper& exactly(std::size_t count)
+            {
+                this->e_->invoke(std::make_unique<detail::exactly>(count));
+                return *this;
+            }
+            wrapper& at_least(std::size_t min)
+            {
+                this->e_->invoke(std::make_unique<detail::at_least>(min));
+                return *this;
+            }
+            wrapper& at_most(std::size_t max)
+            {
+                this->e_->invoke(std::make_unique<detail::at_most>(max));
+                return *this;
+            }
+            wrapper& between(std::size_t min, std::size_t max)
+            {
+                this->e_->invoke(std::make_unique<detail::between>(min, max));
+                return *this;
+            }
+
+            /// Callable only for functions taking arguments
+            /// Number of constraints must match the number of arguments
+            /// or a single constraint checking all arguments must be passed
+            template<typename... Constraints>
+            std::enable_if_t<(arity > 0u && (sizeof...(Constraints) == arity || sizeof...(Constraints) == 1u)),
+                             wrapper&>
+            with(Constraints... c)
+            {
+                this->e_->with(c...);
+                return *this;
+            }
+
+            /// Ensure the expectation is met in the given sequence(s)
+            template<class... MockSequences>
+            wrapper& in(sequence& s0, MockSequences&... s)
+            {
+                using expander = int[];
+                (void)expander{ (this->e_->add(s0), 0), (this->e_->add(s), 0)... };
+                return *this;
+            }
+
+            template<typename TT>
+            void calls(TT t)
+            {
+                this->e_->calls(t);
+            }
+            template<typename TT>
+            void throws(TT t)
+            {
+                this->e_->throws(t);
+            }
+            template<typename TT>
+            void moves(TT&& t)
+            {
+                this->e_->moves(std::move(t));
+            }
+
+            lock lock_;
+        };
+
+    public:
+        typedef wrapper wrapper_type;
+
+        wrapper expect(const char* file, int line)
+        {
+            lock _(mutex_);
+            expectations_.emplace_back(file, line);
+            valid_ = true;
+            return wrapper(mutex_, expectations_.back());
+        }
+        wrapper expect()
+        {
+            lock _(mutex_);
+            expectations_.emplace_back();
+            valid_ = true;
+            return wrapper(mutex_, expectations_.back());
+        }
+
+        R operator()(Args... args) const
+        {
+// Due to lifetime rules of references this must be created and consumed in one line
+#define MOCK_FUNCTION_CONTEXT                  \
+    boost::unit_test::lazy_ostream::instance() \
+      << lazy_context(this) << lazy_args<Args...>(args...) << lazy_expectations(this)
+
+            lock _(mutex_);
+            valid_ = false;
+            for(const auto& expectation : expectations_)
+            {
+                if(expectation.is_valid(static_cast<ref_arg_t<Args>>(args)...))
+                {
+                    if(!expectation.invoke())
+                    {
+                        error_type::fail(
+                          "sequence failed", MOCK_FUNCTION_CONTEXT, expectation.file(), expectation.line());
+                        return error_type::abort();
+                    }
+                    if(!expectation.valid())
+                    {
+                        error_type::fail(
+                          "missing action", MOCK_FUNCTION_CONTEXT, expectation.file(), expectation.line());
+                        return error_type::abort();
+                    }
+                    valid_ = true;
+                    error_type::call(MOCK_FUNCTION_CONTEXT, expectation.file(), expectation.line());
+                    if(expectation.functor())
+                        return expectation.functor()(static_cast<ref_arg_t<Args>>(args)...);
+                    return expectation.trigger();
+                }
+            }
+            error_type::fail("unexpected call", MOCK_FUNCTION_CONTEXT);
+            return error_type::abort();
+#undef MOCK_FUNCTION_CONTEXT
+        }
+
+        void add(context& c,
+                 const void* p,
+                 boost::unit_test::const_string instance,
+                 boost::optional<type_name> type,
+                 boost::unit_test::const_string name)
+        {
+            lock _(mutex_);
+            if(!context_)
+                c.add(*this);
+            c.add(p, *this, instance, type, name);
+            context_ = &c;
+        }
+
+        friend std::ostream& operator<<(std::ostream& s, const function_impl& impl)
+        {
+            lock _(impl.mutex_);
+            return s << lazy_context(&impl) << lazy_expectations(&impl);
+        }
+
+        struct lazy_context
+        {
+            lazy_context(const function_impl* impl) : impl_(impl) {}
+            friend std::ostream& operator<<(std::ostream& s, const lazy_context& c)
+            {
+                if(c.impl_->context_)
+                    c.impl_->context_->serialize(s, *c.impl_);
+                else
+                    s << '?';
+                return s;
+            }
+            const function_impl* impl_;
+        };
+
+        struct lazy_expectations
+        {
+            lazy_expectations(const function_impl* impl) : impl_(impl) {}
+            friend std::ostream& operator<<(std::ostream& s, const lazy_expectations& e)
+            {
+                for(const auto& expectation : e.impl_->expectations_)
+                    s << std::endl << expectation;
+                return s;
+            }
+            const function_impl* impl_;
+        };
+
+        std::list<expectation_type> expectations_;
+        context* context_;
+        mutable bool valid_;
+        const int exceptions_;
+        const std::shared_ptr<mutex> mutex_;
+    };
+
+    template<typename ArgFirst, typename... ArgRest>
+    class lazy_args<ArgFirst, ArgRest...> : lazy_args<ArgRest...>
+    {
+        ArgFirst& arg_;
+
+    public:
+        lazy_args(ArgFirst& arg, std::add_lvalue_reference_t<ArgRest>... args)
+            : lazy_args<ArgRest...>(args...), arg_(arg)
+        {}
+        std::ostream& print(std::ostream& s) const
+        {
+            s << ' ' << mock::format(arg_) << ',';
+            return lazy_args<ArgRest...>::print(s);
+        }
+    };
+    template<typename ArgFirst>
+    class lazy_args<ArgFirst>
+    {
+        ArgFirst& arg_;
+
+    public:
+        lazy_args(ArgFirst& arg) : arg_(arg) {}
+        std::ostream& print(std::ostream& s) const { return s << ' ' << mock::format(arg_) << ' '; }
+    };
+    template<>
+    class lazy_args<>
+    {
+    public:
+        std::ostream& print(std::ostream& s) const { return s; }
+    };
+    template<typename... Args>
+    std::ostream& operator<<(std::ostream& s, const lazy_args<Args...>& a)
+    {
+        s << '(';
+        return a.print(s) << ')';
+    }
+}} // namespace mock::detail
+
+#endif // MOCK_FUNCTION_IMPL_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/function_impl_template.hpp
+++ b/thirdparty/turtle/turtle/detail/function_impl_template.hpp
@ -0,0 +1,329 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include "expectation_template.hpp"
+
+#ifndef MOCK_ERROR_POLICY
+#   error no error policy has been set
+#endif
+
+#define MOCK_FUNCTION_FORMAT(z, n, N) \
+    << ' ' << mock::format( t##n ) \
+    << BOOST_PP_IF(BOOST_PP_EQUAL(N,n), ' ', ',')
+
+#define MOCK_FUNCTION_CONTEXT \
+    boost::unit_test::lazy_ostream::instance() \
+        << lazy_context( this ) \
+        << '(' BOOST_PP_REPEAT(MOCK_NUM_ARGS, MOCK_FUNCTION_FORMAT, \
+            BOOST_PP_DEC(MOCK_NUM_ARGS)) \
+        << ')' \
+        << lazy_expectations( this )
+
+#define MOCK_MOVE(z, n, d) \
+    mock::detail::move_if_not_lvalue_reference< T##n >( t##n )
+
+namespace mock
+{
+namespace detail
+{
+    template< typename Signature > class function_impl;
+
+    template< typename R
+        BOOST_PP_ENUM_TRAILING_PARAMS(MOCK_NUM_ARGS, typename T) >
+    class function_impl< R ( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+        : public verifiable, public boost::enable_shared_from_this<
+            function_impl< R ( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )> >
+    {
+    public:
+        typedef safe_error< R, MOCK_ERROR_POLICY< R > > error_type;
+
+    public:
+        function_impl()
+            : context_( 0 )
+            , valid_( true )
+            , exceptions_( exceptions() )
+            , mutex_( boost::make_shared< mutex >() )
+        {}
+        virtual ~function_impl()
+        {
+            if( valid_ && exceptions_ >= exceptions() )
+                for( expectations_cit it = expectations_.begin();
+                    it != expectations_.end(); ++it )
+                    if( ! it->verify() )
+                        error_type::fail( "untriggered expectation",
+                            boost::unit_test::lazy_ostream::instance()
+                                << lazy_context( this )
+                                << lazy_expectations( this ),
+                            it->file(), it->line() );
+            if( context_ )
+                context_->remove( *this );
+        }
+
+        virtual bool verify() const
+        {
+            lock _( mutex_ );
+            for( expectations_cit it = expectations_.begin();
+                it != expectations_.end(); ++it )
+                if( ! it->verify() )
+                {
+                    valid_ = false;
+                    error_type::fail( "verification failed",
+                        boost::unit_test::lazy_ostream::instance()
+                            << lazy_context( this )
+                            << lazy_expectations( this ),
+                        it->file(), it->line() );
+                }
+            return valid_;
+        }
+
+        virtual void reset()
+        {
+            lock _( mutex_ );
+            valid_ = true;
+            boost::shared_ptr< function_impl > guard =
+                this->shared_from_this();
+            expectations_.clear();
+        }
+
+    private:
+        typedef expectation<
+            R( BOOST_PP_ENUM_PARAMS( MOCK_NUM_ARGS, T ) )
+        > expectation_type;
+
+        class wrapper : public wrapper_base< R, expectation_type >
+        {
+        private:
+            typedef wrapper_base< R, expectation_type > base_type;
+            BOOST_MOVABLE_BUT_NOT_COPYABLE(wrapper)
+
+        public:
+            wrapper( const boost::shared_ptr< mutex >& m, expectation_type& e )
+                : base_type( e )
+                , lock_( m )
+            {}
+            wrapper( BOOST_RV_REF( wrapper ) x )
+                : base_type( x )
+                , lock_( boost::move( x.lock_) )
+            {}
+            wrapper& operator=( BOOST_RV_REF( wrapper ) x )
+            {
+                static_cast< base_type& >( *this ) = x;
+                lock_ = boost::move( x.lock_ );
+                return *this;
+            }
+            wrapper& once()
+            {
+                this->e_->invoke( boost::make_shared< detail::once >() );
+                return *this;
+            }
+            wrapper& never()
+            {
+                this->e_->invoke( boost::make_shared< detail::never >() );
+                return *this;
+            }
+            wrapper& exactly( std::size_t count )
+            {
+                this->e_->invoke(
+                    boost::make_shared< detail::exactly >( count ) );
+                return *this;
+            }
+            wrapper& at_least( std::size_t min )
+            {
+                this->e_->invoke(
+                    boost::make_shared< detail::at_least >( min ) );
+                return *this;
+            }
+            wrapper& at_most( std::size_t max )
+            {
+                this->e_->invoke(
+                    boost::make_shared< detail::at_most >( max ) );
+                return *this;
+            }
+            wrapper& between( std::size_t min, std::size_t max )
+            {
+                this->e_->invoke(
+                    boost::make_shared< detail::between >( min, max ) );
+                return *this;
+            }
+
+#ifndef MOCK_NUM_ARGS_0
+            template<
+                BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename Constraint_)
+            >
+            wrapper& with(
+                BOOST_PP_ENUM_BINARY_PARAMS(MOCK_NUM_ARGS, Constraint_, c) )
+            {
+                this->e_->with(
+                    BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, c) );
+                return *this;
+            }
+
+#if MOCK_NUM_ARGS > 1
+            template< typename Constraint >
+            wrapper& with( const Constraint& c )
+            {
+                this->e_->with( c );
+                return *this;
+            }
+#endif
+#endif
+
+#define MOCK_FUNCTION_IN_ADD(z, n, d) \
+    this->e_->add( s##n );
+
+#define MOCK_FUNCTION_IN(z, n, d) \
+    wrapper& in( BOOST_PP_ENUM_PARAMS(n, sequence& s) ) \
+    { \
+        BOOST_PP_REPEAT(n, MOCK_FUNCTION_IN_ADD, _) \
+        return *this; \
+    }
+
+            BOOST_PP_REPEAT(MOCK_MAX_SEQUENCES,
+                MOCK_FUNCTION_IN, _)
+
+#undef MOCK_FUNCTION_IN
+#undef MOCK_FUNCTION_IN_ADD
+
+            template< typename TT >
+            void calls( TT t )
+            {
+                this->e_->calls( t );
+            }
+            template< typename TT >
+            void throws( TT t )
+            {
+                this->e_->throws( t );
+            }
+            template< typename TT >
+            void moves( BOOST_RV_REF(TT) t )
+            {
+                this->e_->moves( boost::move( t ) );
+            }
+
+            lock lock_;
+        };
+
+    public:
+        typedef wrapper wrapper_type;
+
+        wrapper expect( const char* file, int line )
+        {
+            lock _( mutex_ );
+            expectations_.push_back( expectation_type( file, line ) );
+            valid_ = true;
+            return wrapper( mutex_, expectations_.back() );
+        }
+        wrapper expect()
+        {
+            lock _( mutex_ );
+            expectations_.push_back( expectation_type() );
+            valid_ = true;
+            return wrapper( mutex_, expectations_.back() );
+        }
+
+        R operator()(
+            BOOST_PP_ENUM_BINARY_PARAMS(MOCK_NUM_ARGS, T, t) ) const
+        {
+            lock _( mutex_ );
+            valid_ = false;
+            for( expectations_cit it = expectations_.begin();
+                it != expectations_.end(); ++it )
+                if( it->is_valid(
+                    BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_MOVE, _) ) )
+                {
+                    if( ! it->invoke() )
+                    {
+                        error_type::fail( "sequence failed",
+                            MOCK_FUNCTION_CONTEXT, it->file(), it->line() );
+                        return error_type::abort();
+                    }
+                    if( ! it->valid() )
+                    {
+                        error_type::fail( "missing action",
+                            MOCK_FUNCTION_CONTEXT, it->file(), it->line() );
+                        return error_type::abort();
+                    }
+                    valid_ = true;
+                    error_type::call(
+                        MOCK_FUNCTION_CONTEXT, it->file(), it->line() );
+                    if( it->functor() )
+                        return it->functor()(
+                            BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_MOVE, _) );
+                    return it->trigger();
+                }
+            error_type::fail( "unexpected call", MOCK_FUNCTION_CONTEXT );
+            return error_type::abort();
+        }
+
+        void add( context& c, const void* p,
+            boost::unit_test::const_string instance,
+            boost::optional< type_name > type,
+            boost::unit_test::const_string name )
+        {
+            lock _( mutex_ );
+            if( ! context_ )
+                c.add( *this );
+            c.add( p, *this, instance, type, name );
+            context_ = &c;
+        }
+
+        friend std::ostream& operator<<(
+            std::ostream& s, const function_impl& impl )
+        {
+            lock _( impl.mutex_ );
+            return s << lazy_context( &impl ) << lazy_expectations( &impl );
+        }
+
+        struct lazy_context
+        {
+            lazy_context( const function_impl* impl )
+                : impl_( impl )
+            {}
+            friend std::ostream& operator<<(
+                std::ostream& s, const lazy_context& c )
+            {
+                if( c.impl_->context_ )
+                    c.impl_->context_->serialize( s, *c.impl_ );
+                else
+                    s << '?';
+                return s;
+            }
+            const function_impl* impl_;
+        };
+
+        struct lazy_expectations
+        {
+            lazy_expectations( const function_impl* impl )
+                : impl_( impl )
+            {}
+            friend std::ostream& operator<<(
+                std::ostream& s, const lazy_expectations& e )
+            {
+                for( expectations_cit it = e.impl_->expectations_.begin();
+                    it != e.impl_->expectations_.end(); ++it )
+                    s << std::endl << *it;
+                return s;
+            }
+            const function_impl* impl_;
+        };
+
+        typedef std::list< expectation_type > expectations_type;
+        typedef typename expectations_type::const_iterator expectations_cit;
+
+        expectations_type expectations_;
+        context* context_;
+        mutable bool valid_;
+        const int exceptions_;
+        const boost::shared_ptr< mutex > mutex_;
+    };
+}
+} // mock
+
+#undef MOCK_FUNCTION_FORMAT
+#undef MOCK_FUNCTION_CONTEXT
+#undef MOCK_MOVE
--- a/thirdparty/turtle/turtle/detail/function_iterate.hpp
+++ b/thirdparty/turtle/turtle/detail/function_iterate.hpp
@ -0,0 +1,11 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define MOCK_NUM_ARGS BOOST_PP_ITERATION()
+#include "function_template.hpp"
+#undef MOCK_NUM_ARGS
--- a/thirdparty/turtle/turtle/detail/function_template.hpp
+++ b/thirdparty/turtle/turtle/detail/function_template.hpp
@ -0,0 +1,106 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include "function_impl_template.hpp"
+
+#define MOCK_MOVE(z, n, d) \
+    mock::detail::move_if_not_lvalue_reference< T##n >( t##n )
+
+namespace mock
+{
+namespace detail
+{
+    template< typename Signature > class function;
+
+    template< typename R
+        BOOST_PP_ENUM_TRAILING_PARAMS(MOCK_NUM_ARGS, typename T) >
+    class function< R ( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+    {
+    public:
+        typedef R result_type;
+
+        template< typename Args >
+        struct sig
+        {
+            typedef R type;
+        };
+
+    private:
+        typedef function_impl<
+            R ( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) )
+        > impl_type;
+        typedef typename impl_type::wrapper_type expectation_type;
+        typedef typename impl_type::error_type error_type;
+
+    public:
+        function()
+            : impl_( boost::make_shared< impl_type >() )
+        {}
+
+        bool verify() const
+        {
+            return impl_->verify();
+        }
+        bool verify( const char* file, int line ) const
+        {
+            error_type::pass( file, line );
+            return impl_->verify();
+        }
+        void reset()
+        {
+            impl_->reset();
+        }
+        void reset( const char* file, int line )
+        {
+            error_type::pass( file, line );
+            impl_->reset();
+        }
+
+        expectation_type expect( const char* file, int line )
+        {
+            error_type::pass( file, line );
+            return impl_->expect( file, line );
+        }
+        expectation_type expect()
+        {
+            return impl_->expect();
+        }
+
+        R operator()(
+            BOOST_PP_ENUM_BINARY_PARAMS(MOCK_NUM_ARGS, T, t) ) const
+        {
+            return (*impl_)( BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_MOVE, _) );
+        }
+
+        friend std::ostream& operator<<( std::ostream& s, const function& f )
+        {
+            return s << *f.impl_;
+        }
+
+        function& operator()( context& c,
+            boost::unit_test::const_string instance )
+        {
+            impl_->add( c, impl_.get(), instance, boost::none, "" );
+            return *this;
+        }
+
+        void configure( context& c, const void* p,
+            boost::unit_test::const_string instance,
+            boost::optional< type_name > type,
+            boost::unit_test::const_string name ) const
+        {
+            impl_->add( c, p, instance, type, name );
+        }
+
+    private:
+        boost::shared_ptr< impl_type > impl_;
+    };
+}
+} // mock
+
+#undef MOCK_MOVE
--- a/thirdparty/turtle/turtle/detail/functor.hpp
+++ b/thirdparty/turtle/turtle/detail/functor.hpp
@ -0,0 +1,54 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_FUNCTOR_HPP_INCLUDED
+#define MOCK_FUNCTOR_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "function.hpp"
+#include "mutex.hpp"
+#include "singleton.hpp"
+
+namespace mock { namespace detail {
+    class functor_mutex_t : public singleton<functor_mutex_t>, public mutex
+    {
+        MOCK_SINGLETON_CONS(functor_mutex_t);
+    };
+    MOCK_SINGLETON_INST(functor_mutex)
+
+    template<typename Signature>
+    struct functor : function<Signature>
+    {
+        functor()
+        {
+            scoped_lock _(functor_mutex);
+            // MOCK_FUNCTOR creates 2 functor objects:
+            // The user-usable one with the passed name and a 2nd used by MOCK_EXPECT with a suffixed name
+            // We need the 2nd to be a copy of the first and use a static variable for storing a pointer to the first
+            static functor* f = nullptr;
+            if(f)
+            {
+                // Release the lock from the first call (see below) so other threads can create functors again
+                // after the function exits (the scoped_lock still holds the mutex)
+                functor_mutex.unlock();
+                // Copy the first functor to the current (2nd) one
+                *this = *f;
+                f = nullptr;
+            } else
+            {
+                // This is the first object, store its pointer
+                f = this;
+                // Lock the mutex again so only this thread can create new instances of a functor
+                // making sure that we copy the right instance above and not one from a concurrent thread
+                functor_mutex.lock();
+            }
+        }
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_FUNCTOR_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/group.hpp
+++ b/thirdparty/turtle/turtle/detail/group.hpp
@ -0,0 +1,49 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_GROUP_HPP_INCLUDED
+#define MOCK_GROUP_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "verifiable.hpp"
+#include <algorithm>
+#include <functional>
+#include <vector>
+
+namespace mock { namespace detail {
+    class group
+    {
+    public:
+        void add(verifiable& v) { verifiables_.push_back(&v); }
+        void remove(verifiable& v)
+        {
+            verifiables_.erase(std::remove(verifiables_.begin(), verifiables_.end(), &v), verifiables_.end());
+        }
+
+        bool verify() const
+        {
+            bool valid = true;
+            for(const auto* verifiable : verifiables_)
+                if(!verifiable->verify())
+                    valid = false;
+            return valid;
+        }
+        void reset()
+        {
+            const auto verifiables = verifiables_;
+            for(auto* verifiable : verifiables)
+                if(std::find(verifiables_.begin(), verifiables_.end(), verifiable) != verifiables_.end())
+                    verifiable->reset();
+        }
+
+    private:
+        std::vector<verifiable*> verifiables_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_GROUP_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/invocation.hpp
+++ b/thirdparty/turtle/turtle/detail/invocation.hpp
@ -0,0 +1,134 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_INVOCATION_HPP_INCLUDED
+#define MOCK_INVOCATION_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <limits>
+#include <ostream>
+#include <stdexcept>
+
+namespace mock { namespace detail {
+    class invocation
+    {
+    public:
+        invocation() = default;
+        invocation(const invocation&) = delete;
+        invocation& operator=(const invocation&) = delete;
+
+        virtual ~invocation() = default;
+
+        virtual bool invoke() = 0;
+        virtual bool verify() const = 0;
+
+        virtual bool exhausted() const = 0;
+
+        friend std::ostream& operator<<(std::ostream& s, const invocation& i) { return i.serialize(s); }
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const = 0;
+    };
+
+    class between : public invocation
+    {
+    public:
+        between(std::size_t min, std::size_t max) : min_(min), max_(max), count_(0)
+        {
+            if(min > max)
+                throw std::invalid_argument("'min' > 'max'");
+        }
+
+        virtual bool invoke()
+        {
+            if(count_ == max_)
+                return false;
+            ++count_;
+            return true;
+        }
+
+        virtual bool exhausted() const { return count_ >= max_; }
+
+        virtual bool verify() const { return min_ <= count_ && count_ <= max_; }
+
+    protected:
+        const std::size_t min_, max_;
+        std::size_t count_;
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const
+        {
+            return s << "between( " << count_ << "/[" << min_ << ',' << max_ << "] )";
+        }
+    };
+
+    class exactly : public between
+    {
+    public:
+        explicit exactly(std::size_t count) : between(count, count) {}
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const
+        {
+            return s << "exactly( " << count_ << '/' << max_ << " )";
+        }
+    };
+
+    class never : public exactly
+    {
+    public:
+        never() : exactly(0) {}
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const { return s << "never()"; }
+    };
+
+    class once : public exactly
+    {
+    public:
+        once() : exactly(1) {}
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const { return s << "once()"; }
+    };
+
+    class at_least : public between
+    {
+    public:
+        explicit at_least(std::size_t min) : between(min, (std::numeric_limits<std::size_t>::max)()) {}
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const
+        {
+            return s << "at_least( " << count_ << '/' << min_ << " )";
+        }
+    };
+
+    class at_most : public between
+    {
+    public:
+        explicit at_most(std::size_t max) : between(0, max) {}
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const
+        {
+            return s << "at_most( " << count_ << '/' << max_ << " )";
+        }
+    };
+
+    class unlimited : public at_least
+    {
+    public:
+        unlimited() : at_least(0) {}
+
+    private:
+        virtual std::ostream& serialize(std::ostream& s) const { return s << "unlimited()"; }
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_INVOCATION_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/is_functor.hpp
+++ b/thirdparty/turtle/turtle/detail/is_functor.hpp
@ -0,0 +1,26 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2009
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_IS_FUNCTOR_HPP_INCLUDED
+#define MOCK_IS_FUNCTOR_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "void_t.hpp"
+#include <type_traits>
+
+namespace mock { namespace detail {
+    /// Trait to return true if F is a functor that can be called with a single argument Arg
+    template<typename F, typename Arg, class = void>
+    struct is_functor : std::false_type
+    {};
+    template<typename F, typename Arg>
+    struct is_functor<F, Arg, void_t<decltype(std::declval<F>()(std::declval<Arg>()))>> : std::true_type
+    {};
+}} // namespace mock::detail
+
+#endif // MOCK_IS_FUNCTOR_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/matcher_base.hpp
+++ b/thirdparty/turtle/turtle/detail/matcher_base.hpp
@ -0,0 +1,38 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_MATCHER_BASE_HPP_INCLUDED
+#define MOCK_MATCHER_BASE_HPP_INCLUDED
+
+#include "ref_arg.hpp"
+#include <ostream>
+
+namespace mock { namespace detail {
+    template<typename... Args>
+    class matcher_base
+    {
+    public:
+        matcher_base() = default;
+        matcher_base(const matcher_base&) = delete;
+        matcher_base& operator=(const matcher_base&) = delete;
+        virtual ~matcher_base() = default;
+
+        virtual bool operator()(ref_arg_t<Args>...) = 0;
+
+        friend std::ostream& operator<<(std::ostream& s, const matcher_base& m)
+        {
+            m.serialize(s);
+            return s;
+        }
+
+    private:
+        virtual void serialize(std::ostream&) const = 0;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_MATCHER_BASE_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/matcher_base_template.hpp
+++ b/thirdparty/turtle/turtle/detail/matcher_base_template.hpp
@ -0,0 +1,42 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#define MOCK_REF_ARG(z, n, d) \
+    typename ref_arg< T##n >::type
+
+namespace mock
+{
+namespace detail
+{
+    template< typename Signature > class matcher_base;
+
+    template<
+        BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, typename T) >
+    class matcher_base< void( BOOST_PP_ENUM_PARAMS(MOCK_NUM_ARGS, T) ) >
+        : boost::noncopyable
+    {
+    public:
+        virtual ~matcher_base() {}
+
+        virtual bool operator()(
+            BOOST_PP_ENUM(MOCK_NUM_ARGS, MOCK_REF_ARG, _) ) = 0;
+
+        friend std::ostream& operator<<(
+            std::ostream& s, const matcher_base& m )
+        {
+            m.serialize( s );
+            return s;
+        }
+
+    private:
+        virtual void serialize( std::ostream& ) const = 0;
+    };
+}
+} // mock
+
+#undef MOCK_REF_ARG
--- a/thirdparty/turtle/turtle/detail/mock_impl.hpp
+++ b/thirdparty/turtle/turtle/detail/mock_impl.hpp
@ -0,0 +1,113 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_MOCK_IMPL_HPP_INCLUDED
+#define MOCK_MOCK_IMPL_HPP_INCLUDED
+
+#include "function.hpp"
+#include "functor.hpp"
+#include "signature.hpp"
+#include "signature_traits.hpp"
+#include "type_name.hpp"
+#include <boost/preprocessor/repetition/repeat.hpp>
+#include <boost/preprocessor/stringize.hpp>
+#include <type_traits>
+
+namespace mock { namespace detail {
+    /// Simplified trait to extract the argument type of a function signature with 1 argument
+    template<typename T>
+    struct arg_type;
+    template<typename T, typename U>
+    struct arg_type<T(U)>
+    {
+        using type = U;
+    };
+    /// Used in MOCK_PROTECT_SIGNATURE to unwrap the passed function signature
+    /// T is something like `void(std::map<int, float>)`
+    template<typename T>
+    using unwrap_signature_t = std::remove_pointer_t<typename arg_type<T>::type>;
+}} // namespace mock::detail
+
+#define MOCK_HELPER(t) t##_mock(mock::detail::root, BOOST_PP_STRINGIZE(t))
+#define MOCK_ANONYMOUS_HELPER(t) t##_mock(mock::detail::root, "?.")
+
+#define MOCK_METHOD_HELPER(S, t)                                                                                      \
+    mutable mock::detail::function<S> t##_mock_;                                                                      \
+    mock::detail::function<S>& t##_mock(const mock::detail::context&, const boost::unit_test::const_string& instance) \
+      const                                                                                                           \
+    {                                                                                                                 \
+        mock::detail::configure(*this,                                                                                \
+                                t##_mock_,                                                                            \
+                                instance.substr(0, instance.rfind(BOOST_PP_STRINGIZE(t))),                            \
+                                mock::detail::make_type_name(*this),                                                  \
+                                BOOST_PP_STRINGIZE(t));                                                               \
+        return t##_mock_;                                                                                             \
+    }
+
+#define MOCK_PARAM(S) mock::detail::parameter_t < S
+#define MOCK_DECL_PARAM(z, n, d) BOOST_PP_COMMA_IF(n) d, n > p##n
+#define MOCK_DECL_PARAMS(n, S) BOOST_PP_REPEAT(n, MOCK_DECL_PARAM, MOCK_PARAM(S))
+#define MOCK_DECL(M, n, S, c) mock::detail::result_type_t<S> M(MOCK_DECL_PARAMS(n, S)) c
+
+#define MOCK_FORWARD_PARAM(z, n, d) BOOST_PP_COMMA_IF(n) d, n >> (p##n)
+#define MOCK_FORWARD_PARAMS(n, S) BOOST_PP_REPEAT(n, MOCK_FORWARD_PARAM, std::forward < MOCK_PARAM(S))
+#define MOCK_METHOD_AUX(M, n, S, t, c)                                              \
+    static_assert(n == mock::detail::function_arity_t<S>::value, "Arity mismatch"); \
+    MOCK_DECL(M, n, S, c) { return MOCK_ANONYMOUS_HELPER(t)(MOCK_FORWARD_PARAMS(n, S)); }
+
+#define MOCK_METHOD_EXT(M, n, S, t)    \
+    MOCK_METHOD_AUX(M, n, S, t, )      \
+    MOCK_METHOD_AUX(M, n, S, t, const) \
+    MOCK_METHOD_HELPER(S, t)
+#define MOCK_CONST_METHOD_EXT(M, n, S, t) \
+    MOCK_METHOD_AUX(M, n, S, t, const)    \
+    MOCK_METHOD_HELPER(S, t)
+#define MOCK_NON_CONST_METHOD_EXT(M, n, S, t) \
+    MOCK_METHOD_AUX(M, n, S, t, )             \
+    MOCK_METHOD_HELPER(S, t)
+
+#define MOCK_FUNCTION_HELPER(S, t, s)                                                                              \
+    s mock::detail::function<S>& t##_mock(mock::detail::context& context, boost::unit_test::const_string instance) \
+    {                                                                                                              \
+        static mock::detail::function<S> f;                                                                        \
+        return f(context, instance);                                                                               \
+    }
+
+#define MOCK_CONSTRUCTOR_AUX(T, n, A, t)                                               \
+    T(MOCK_DECL_PARAMS(n, void A)) { MOCK_HELPER(t)(MOCK_FORWARD_PARAMS(n, void A)); } \
+    MOCK_FUNCTION_HELPER(void A, t, static)
+
+#define MOCK_FUNCTION_AUX(F, n, S, t, s)                                            \
+    MOCK_FUNCTION_HELPER(S, t, s)                                                   \
+    static_assert(n == mock::detail::function_arity_t<S>::value, "Arity mismatch"); \
+    s MOCK_DECL(F, n, S, ) { return MOCK_HELPER(t)(MOCK_FORWARD_PARAMS(n, S)); }
+
+#define MOCK_VARIADIC_ELEM_0(e0, ...) e0
+#define MOCK_VARIADIC_ELEM_1(e0, e1, ...) e1
+#define MOCK_VARIADIC_ELEM_2(e0, e1, e2, ...) e2
+
+#define MOCK_REPLACED_MACRO_ERROR(oldName, newName) static_assert(false, #oldName " has been replaced by " #newName)
+// Replaced macros
+#define MOCK_CONST_CONVERSION_OPERATOR_TPL(...) \
+    MOCK_REPLACED_MACRO_ERROR(MOCK_CONST_CONVERSION_OPERATOR_TPL, MOCK_CONST_CONVERSION_OPERATOR)
+#define MOCK_CONST_METHOD_EXT_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_CONST_METHOD_EXT_TPL, MOCK_CONST_METHOD)
+#define MOCK_CONST_METHOD_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_CONST_METHOD_TPL, MOCK_CONST_METHOD)
+#define MOCK_CONVERSION_OPERATOR_TPL(...) \
+    MOCK_REPLACED_MACRO_ERROR(MOCK_CONVERSION_OPERATOR_TPL, MOCK_CONVERSION_OPERATOR)
+#define MOCK_FUNCTOR_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_FUNCTOR_TPL, MOCK_FUNCTOR)
+#define MOCK_METHOD_EXT_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_METHOD_EXT_TPL, MOCK_METHOD)
+#define MOCK_METHOD_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_METHOD_TPL, MOCK_METHOD)
+#define MOCK_NON_CONST_CONVERSION_OPERATOR_TPL(...) \
+    MOCK_REPLACED_MACRO_ERROR(MOCK_NON_CONST_CONVERSION_OPERATOR_TPL, MOCK_NON_CONST_CONVERSION_OPERATOR)
+#define MOCK_NON_CONST_METHOD_EXT_TPL(...) \
+    MOCK_REPLACED_MACRO_ERROR(MOCK_NON_CONST_METHOD_EXT_TPL, MOCK_NON_CONST_METHOD)
+#define MOCK_NON_CONST_METHOD_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_NON_CONST_METHOD_TPL, MOCK_NON_CONST_METHOD)
+#define MOCK_STATIC_METHOD_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_STATIC_METHOD_TPL, MOCK_STATIC_METHOD)
+#define MOCK_CONSTRUCTOR_TPL(...) MOCK_REPLACED_MACRO_ERROR(MOCK_CONSTRUCTOR_TPL, MOCK_CONSTRUCTOR)
+
+#endif // MOCK_MOCK_IMPL_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/move_helper.hpp
+++ b/thirdparty/turtle/turtle/detail/move_helper.hpp
@ -0,0 +1,78 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2018
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_MOVE_HELPER_HPP_INCLUDED
+#define MOCK_MOVE_HELPER_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <boost/type_traits/conditional.hpp>
+#include <boost/type_traits/is_reference.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/type_traits/add_reference.hpp>
+#include <boost/type_traits/add_rvalue_reference.hpp>
+#include <boost/type_traits/decay.hpp>
+
+namespace mock
+{
+namespace detail
+{
+#ifdef MOCK_RVALUE_REFERENCES
+    template< typename T >
+    struct forward_type
+    {
+        typedef T type;
+    };
+    template< typename T >
+    struct ref_arg
+    {
+        typedef typename boost::conditional<
+          boost::is_reference< T >::value,
+          T,
+          typename boost::add_rvalue_reference< T >::type >::type type;
+    };
+
+    template< typename T >
+    inline T&& move_if_not_lvalue_reference(typename boost::remove_reference< T >::type& t)
+    {
+        return static_cast< T&& >(t);
+    }
+
+    template< typename T >
+    inline T&& move_if_not_lvalue_reference(typename boost::remove_reference< T >::type&& t)
+    {
+      return static_cast< T&& >(t);
+    }
+#else
+    template< typename T >
+    struct forward_type
+    {
+        typedef typename boost::decay< const T >::type type;
+    };
+    template< class T>
+    struct forward_type< boost::rv< T > >
+    {
+        typedef T type;
+    };
+    template< typename T >
+    struct ref_arg
+    {
+        typedef typename boost::conditional<
+          boost::is_reference< T >::value,
+          T,
+          const typename boost::add_reference< T >::type >::type type;
+    };
+    template< typename T >
+    inline typename boost::remove_reference< T >::type& move_if_not_lvalue_reference(typename boost::remove_reference< T >::type& t)
+    {
+        return t;
+    }
+#endif
+}
+}
+
+#endif  // MOCK_MOVE_HELPER_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/mutex.hpp
+++ b/thirdparty/turtle/turtle/detail/mutex.hpp
@ -0,0 +1,134 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2014
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_MUTEX_HPP_INCLUDED
+#define MOCK_MUTEX_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "singleton.hpp"
+#include <memory>
+
+#ifdef MOCK_THREAD_SAFE
+
+#    ifdef MOCK_HDR_MUTEX
+#        include <mutex>
+#    else
+#        include <boost/thread/lock_guard.hpp>
+#        include <boost/thread/recursive_mutex.hpp>
+#    endif
+
+namespace mock { namespace detail {
+#    ifdef MOCK_HDR_MUTEX
+    typedef std::recursive_mutex mutex;
+    typedef std::lock_guard<mutex> scoped_lock;
+#    else
+    typedef boost::recursive_mutex mutex;
+    typedef boost::lock_guard<mutex> scoped_lock;
+#    endif
+
+    struct lock
+    {
+    public:
+        lock(const std::shared_ptr<mutex>& m) : m_(m) { m_->lock(); }
+        ~lock()
+        {
+            if(m_)
+                m_->unlock();
+        }
+        lock(const lock&) = delete;
+        lock(lock&& x) = default;
+        lock& operator=(const lock&) = delete;
+        lock& operator=(lock&& x) = default;
+
+    private:
+        std::shared_ptr<mutex> m_;
+    };
+}} // namespace mock::detail
+
+#else // MOCK_THREAD_SAFE
+
+namespace mock { namespace detail {
+    struct mutex
+    {
+        mutex() = default;
+        mutex(const mutex&) = delete;
+        mutex& operator=(const mutex&) = delete;
+
+        void lock() {}
+        void unlock() {}
+    };
+    // Dummy lock classes.
+    // Constructor + Destructor make it RAII classes for compilers and avoid unused variable warnings
+    struct scoped_lock
+    {
+        scoped_lock(const scoped_lock&) = delete;
+        scoped_lock& operator=(const scoped_lock&) = delete;
+
+        scoped_lock(mutex&) {}
+        ~scoped_lock() {}
+    };
+    class lock
+    {
+    public:
+        lock(const std::shared_ptr<mutex>&) {}
+        ~lock() {}
+        lock(const lock&) = delete;
+        lock(lock&&) = default;
+        lock& operator=(const lock&) = delete;
+        lock& operator=(lock&&) = default;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_THREAD_SAFE
+
+namespace mock { namespace detail {
+    class error_mutex_t : public singleton<error_mutex_t>, public mutex
+    {
+        MOCK_SINGLETON_CONS(error_mutex_t);
+    };
+    MOCK_SINGLETON_INST(error_mutex)
+
+#ifdef BOOST_MSVC
+#    pragma warning(push)
+#    pragma warning(disable : 4702)
+#endif
+    template<typename Result, typename Error>
+    struct safe_error
+    {
+        static Result abort()
+        {
+            scoped_lock _(error_mutex);
+            return Error::abort();
+        }
+        template<typename Context>
+        static void fail(const char* message,
+                         const Context& context,
+                         const char* file = "unknown location",
+                         int line = 0)
+        {
+            scoped_lock _(error_mutex);
+            Error::fail(message, context, file, line);
+        }
+        template<typename Context>
+        static void call(const Context& context, const char* file, int line)
+        {
+            scoped_lock _(error_mutex);
+            Error::call(context, file, line);
+        }
+        static void pass(const char* file, int line)
+        {
+            scoped_lock _(error_mutex);
+            Error::pass(file, line);
+        }
+    };
+#ifdef BOOST_MSVC
+#    pragma warning(pop)
+#endif
+}} // namespace mock::detail
+
+#endif // MOCK_MUTEX_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/object_impl.hpp
+++ b/thirdparty/turtle/turtle/detail/object_impl.hpp
@ -0,0 +1,83 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_OBJECT_IMPL_HPP_INCLUDED
+#define MOCK_OBJECT_IMPL_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "child.hpp"
+#include "context.hpp"
+#include "mutex.hpp"
+#include "parent.hpp"
+#include "root.hpp"
+#include "type_name.hpp"
+#include <boost/optional.hpp>
+#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
+
+namespace mock { namespace detail {
+    class object_impl : public context, public verifiable, public std::enable_shared_from_this<object_impl>
+    {
+    public:
+        object_impl() : mutex_(std::make_shared<mutex>()) {}
+
+        virtual void add(const void* /*p*/,
+                         verifiable& v,
+                         boost::unit_test::const_string instance,
+                         boost::optional<type_name> type,
+                         boost::unit_test::const_string name)
+        {
+            lock _(mutex_);
+            if(children_.empty())
+                detail::root.add(*this);
+            children_[&v].update(parent_, instance, type, name);
+        }
+        virtual void add(verifiable& v)
+        {
+            lock _(mutex_);
+            group_.add(v);
+        }
+        virtual void remove(verifiable& v)
+        {
+            lock _(mutex_);
+            group_.remove(v);
+            children_.erase(&v);
+            if(children_.empty())
+                detail::root.remove(*this);
+        }
+
+        virtual void serialize(std::ostream& s, const verifiable& v) const
+        {
+            lock _(mutex_);
+            const auto it = children_.find(&v);
+            if(it != children_.end())
+                s << it->second;
+            else
+                s << "?";
+        }
+
+        virtual bool verify() const
+        {
+            lock _(mutex_);
+            return group_.verify();
+        }
+        virtual void reset()
+        {
+            lock _(mutex_);
+            std::shared_ptr<object_impl> guard = shared_from_this();
+            group_.reset();
+        }
+
+    private:
+        group group_;
+        parent parent_;
+        std::map<const verifiable*, child> children_;
+        const std::shared_ptr<mutex> mutex_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_OBJECT_IMPL_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/parameter.hpp
+++ b/thirdparty/turtle/turtle/detail/parameter.hpp
@ -0,0 +1,34 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_PARAMETER_HPP_INCLUDED
+#define MOCK_PARAMETER_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <boost/function_types/parameter_types.hpp>
+#include <boost/function_types/function_arity.hpp>
+#include <boost/mpl/at.hpp>
+
+namespace mock
+{
+namespace detail
+{
+    template< typename Signature, int n >
+    struct parameter
+    {
+        typedef typename
+            boost::mpl::at_c<
+                typename
+                    boost::function_types::parameter_types< Signature >,
+                n
+            >::type type;
+    };
+}
+} // mock
+
+#endif // MOCK_PARAMETER_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/parent.hpp
+++ b/thirdparty/turtle/turtle/detail/parent.hpp
@ -0,0 +1,40 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_PARENT_HPP_INCLUDED
+#define MOCK_PARENT_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "type_name.hpp"
+#include <boost/optional.hpp>
+#include <boost/test/utils/basic_cstring/io.hpp>
+#include <ostream>
+
+namespace mock { namespace detail {
+    class parent
+    {
+    public:
+        parent() = default;
+        parent(boost::unit_test::const_string instance, boost::optional<type_name> type)
+            : instance_(instance), type_(type)
+        {}
+        friend std::ostream& operator<<(std::ostream& s, const parent& p)
+        {
+            s << p.instance_;
+            if(p.type_)
+                s << *p.type_ << "::";
+            return s;
+        }
+
+    private:
+        boost::unit_test::const_string instance_;
+        boost::optional<type_name> type_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_PARENT_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/ref_arg.hpp
+++ b/thirdparty/turtle/turtle/detail/ref_arg.hpp
@ -0,0 +1,22 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2018
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_REF_ARG_HPP_INCLUDED
+#define MOCK_REF_ARG_HPP_INCLUDED
+
+#include <type_traits>
+
+namespace mock { namespace detail {
+    /// Make T a reference type:
+    /// If T is already a reference type, return T, else return an rvalue reference to T
+    /// Useful to pass along arguments keeping the ability to modify them (e.g. move from them)
+    template<typename T>
+    using ref_arg_t = typename std::conditional<std::is_reference<T>::value, T, std::add_rvalue_reference_t<T>>::type;
+}} // namespace mock::detail
+
+#endif // MOCK_REF_ARG_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/root.hpp
+++ b/thirdparty/turtle/turtle/detail/root.hpp
@ -0,0 +1,119 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_ROOT_HPP_INCLUDED
+#define MOCK_ROOT_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "child.hpp"
+#include "context.hpp"
+#include "group.hpp"
+#include "mutex.hpp"
+#include "parent.hpp"
+#include "singleton.hpp"
+#include <boost/optional.hpp>
+#include <map>
+#include <ostream>
+
+namespace mock { namespace detail {
+    class root_t : public singleton<root_t>, public context
+    {
+    public:
+        virtual void add(const void* p,
+                         verifiable& v,
+                         boost::unit_test::const_string instance,
+                         boost::optional<type_name> type,
+                         boost::unit_test::const_string name)
+        {
+            scoped_lock _(mutex_);
+            auto it = children_.lower_bound(&v);
+            if(it == children_.end() || children_.key_comp()(&v, it->first))
+                it = children_.insert(it, std::make_pair(&v, counter_child(parents_, p)));
+            it->second.update(instance, type, name);
+        }
+        virtual void add(verifiable& v)
+        {
+            scoped_lock _(mutex_);
+            group_.add(v);
+        }
+
+        virtual void remove(verifiable& v)
+        {
+            scoped_lock _(mutex_);
+            group_.remove(v);
+            children_.erase(&v);
+        }
+
+        bool verify() const
+        {
+            scoped_lock _(mutex_);
+            return group_.verify();
+        }
+        void reset()
+        {
+            scoped_lock _(mutex_);
+            group_.reset();
+        }
+
+        virtual void serialize(std::ostream& s, const verifiable& v) const
+        {
+            scoped_lock _(mutex_);
+            const auto it = children_.find(&v);
+            if(it != children_.end())
+                s << it->second;
+            else
+                s << "?";
+        }
+
+    private:
+        typedef std::map<const void*, std::pair<parent, std::size_t>> parents_t;
+
+        class counter_child
+        {
+        public:
+            counter_child(parents_t& parents, const void* p)
+                : parents_(&parents), it_(parents.insert(std::make_pair(p, parents_t::mapped_type())).first)
+            {
+                ++it_->second.second;
+            }
+            counter_child(const counter_child& rhs) : parents_(rhs.parents_), it_(rhs.it_), child_(rhs.child_)
+            {
+                ++it_->second.second;
+            }
+            ~counter_child()
+            {
+                if(--it_->second.second == 0)
+                    parents_->erase(it_);
+            }
+            void update(boost::unit_test::const_string instance,
+                        boost::optional<type_name> type,
+                        boost::unit_test::const_string name)
+            {
+                child_.update(it_->second.first, instance, type, name);
+            }
+            friend std::ostream& operator<<(std::ostream& s, const counter_child& c) { return s << c.child_; }
+
+        private:
+            counter_child& operator=(const counter_child&);
+
+            parents_t* parents_;
+            parents_t::iterator it_;
+            child child_;
+        };
+
+        parents_t parents_;
+        std::map<const verifiable*, counter_child> children_;
+        group group_;
+        mutable mutex mutex_;
+
+        MOCK_SINGLETON_CONS(root_t);
+    };
+    MOCK_SINGLETON_INST(root)
+}} // namespace mock::detail
+
+#endif // MOCK_ROOT_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/sequence_impl.hpp
+++ b/thirdparty/turtle/turtle/detail/sequence_impl.hpp
@ -0,0 +1,55 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_SEQUENCE_IMPL_HPP_INCLUDED
+#define MOCK_SEQUENCE_IMPL_HPP_INCLUDED
+
+#include "../config.hpp"
+#include "mutex.hpp"
+#include <algorithm>
+#include <memory>
+#include <vector>
+
+namespace mock { namespace detail {
+    class sequence_impl
+    {
+    public:
+        sequence_impl() : mutex_(std::make_shared<mutex>()) {}
+
+        void add(void* e)
+        {
+            lock _(mutex_);
+            elements_.push_back(e);
+        }
+        void remove(void* e)
+        {
+            lock _(mutex_);
+            elements_.erase(std::remove(elements_.begin(), elements_.end(), e), elements_.end());
+        }
+
+        bool is_valid(const void* e) const
+        {
+            lock _(mutex_);
+            return std::find(elements_.begin(), elements_.end(), e) != elements_.end();
+        }
+
+        void invalidate(const void* e)
+        {
+            lock _(mutex_);
+            const auto it = std::find(elements_.begin(), elements_.end(), e);
+            if(it != elements_.end())
+                elements_.erase(elements_.begin(), it);
+        }
+
+    private:
+        std::vector<void*> elements_;
+        const std::shared_ptr<mutex> mutex_;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_SEQUENCE_IMPL_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/signature.hpp
+++ b/thirdparty/turtle/turtle/detail/signature.hpp
@ -0,0 +1,77 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_SIGNATURE_HPP_INCLUDED
+#define MOCK_SIGNATURE_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <type_traits>
+
+namespace mock { namespace detail {
+#define MOCK_NOARG
+#define MOCK_STRIP_FUNCTION_QUALIFIERS(cv, ref)              \
+    template<typename R, typename... Args>                   \
+    struct strip_function_qualifiers<R(Args...) cv ref>      \
+    {                                                        \
+        using type = R(Args...);                             \
+    };                                                       \
+    template<typename R, typename... Args>                   \
+    struct strip_function_qualifiers<R(Args..., ...) cv ref> \
+    {                                                        \
+        using type = R(Args..., ...);                        \
+    };
+
+#define MOCK_STRIP_FUNCTION_QUALIFIERS_REF(cv) \
+    MOCK_STRIP_FUNCTION_QUALIFIERS(cv, )       \
+    MOCK_STRIP_FUNCTION_QUALIFIERS(cv, &)      \
+    MOCK_STRIP_FUNCTION_QUALIFIERS(cv, &&)
+
+    template<typename>
+    struct strip_function_qualifiers;
+    MOCK_STRIP_FUNCTION_QUALIFIERS_REF(MOCK_NOARG)
+    MOCK_STRIP_FUNCTION_QUALIFIERS_REF(const)
+    MOCK_STRIP_FUNCTION_QUALIFIERS_REF(volatile)
+    MOCK_STRIP_FUNCTION_QUALIFIERS_REF(const volatile)
+#undef MOCK_NOARG
+#undef MOCK_STRIP_FUNCTION_QUALIFIERS
+#undef MOCK_STRIP_FUNCTION_QUALIFIERS_REF
+
+    template<typename M>
+    struct signature;
+
+    template<typename R, typename... Args>
+    struct signature<R(Args...)>
+    {
+        using type = R(Args...);
+    };
+
+    template<typename Sig, typename C>
+    struct signature<Sig(C::*)> : signature<typename strip_function_qualifiers<Sig>::type>
+    {};
+
+    /// Return the (non-member) function signature out of (any) signature
+    template<typename M>
+    using signature_t = typename signature<M>::type;
+
+    /// CRTP class to define the base_type typedef
+    template<typename T>
+    struct base
+    {
+        using base_type = T;
+    };
+
+    // If an error is generated by the line below it means the method is ambiguous.
+    // Specify its signature to disambiguate
+    template<typename T>
+    T ambiguous_method_requires_to_specify_signature(const T&);
+}} // namespace mock::detail
+
+#define MOCK_SIGNATURE(M) \
+    mock::detail::signature_t<decltype(mock::detail::ambiguous_method_requires_to_specify_signature(&base_type::M))>
+
+#endif // MOCK_SIGNATURE_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/signature_traits.hpp
+++ b/thirdparty/turtle/turtle/detail/signature_traits.hpp
@ -0,0 +1,62 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_SIGNATURE_TRAITS_HPP_INCLUDED
+#define MOCK_SIGNATURE_TRAITS_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <cstddef>
+
+namespace mock { namespace detail {
+    /// Helper class to store a tuple/list of types
+    template<class...>
+    struct tuple;
+
+    /// Get the type at the given index in the tuple
+    template<std::size_t index, class Tuple>
+    struct tuple_element;
+
+    template<std::size_t I, class H, class... T>
+    struct tuple_element<I, tuple<H, T...>> : tuple_element<I - 1, tuple<T...>>
+    {};
+
+    template<class H, class... T>
+    struct tuple_element<0, tuple<H, T...>>
+    {
+        using type = H;
+    };
+
+    /// Provides information about a given function signature
+    /// Member types: return_type, args
+    /// Member constant: arity
+    template<typename Signature>
+    struct signature_traits;
+
+    template<typename R, typename... Args>
+    struct signature_traits<R(Args...)>
+    {
+        using return_type = R;
+        static constexpr std::size_t arity = sizeof...(Args);
+        using args = tuple<Args...>;
+    };
+
+    /// Return the result type of the function signature
+    template<typename Signature>
+    using result_type_t = typename signature_traits<Signature>::return_type;
+
+    /// Return the arity of the function signature
+    template<typename Signature>
+    using function_arity_t = std::integral_constant<std::size_t, signature_traits<Signature>::arity>;
+
+    /// Return the type at the given index of the function signature
+    template<typename Signature, std::size_t idx>
+    using parameter_t = typename tuple_element<idx, typename signature_traits<Signature>::args>::type;
+
+}} // namespace mock::detail
+
+#endif // MOCK_SIGNATURE_TRAITS_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/singleton.hpp
+++ b/thirdparty/turtle/turtle/detail/singleton.hpp
@ -0,0 +1,44 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2014
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_SINGLETON_HPP
+#define MOCK_SINGLETON_HPP
+
+#include <boost/config.hpp>
+
+namespace mock { namespace detail {
+
+    template<typename Derived>
+    class singleton
+    {
+    public:
+        static Derived& instance()
+        {
+            static Derived the_inst;
+            return the_inst;
+        }
+
+        singleton(singleton const&) = delete;
+        singleton& operator=(singleton const&) = delete;
+
+    protected:
+        singleton() = default;
+        ~singleton() = default;
+    };
+
+}} // namespace mock::detail
+
+// Add a private ctor to the type to prevent misuse
+#define MOCK_SINGLETON_CONS(type)               \
+private:                                        \
+    friend class mock::detail::singleton<type>; \
+    type() = default
+
+#define MOCK_SINGLETON_INST(inst) static BOOST_JOIN(inst, _t)& inst = BOOST_JOIN(inst, _t)::instance();
+
+#endif // MOCK_SINGLETON_HPP
--- a/thirdparty/turtle/turtle/detail/type_name.hpp
+++ b/thirdparty/turtle/turtle/detail/type_name.hpp
@ -0,0 +1,119 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2009
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_TYPE_NAME_HPP_INCLUDED
+#define MOCK_TYPE_NAME_HPP_INCLUDED
+
+#include "../config.hpp"
+#include <boost/algorithm/string/erase.hpp>
+#include <boost/algorithm/string/replace.hpp>
+#include <boost/algorithm/string/trim.hpp>
+#include <boost/test/utils/basic_cstring/io.hpp>
+#include <boost/version.hpp>
+#include <memory>
+#include <ostream>
+#include <stdexcept>
+#include <typeinfo>
+#ifdef __GNUC__
+#    include <cstdlib>
+#    include <cxxabi.h>
+#endif
+
+namespace mock { namespace detail {
+    class type_name
+    {
+    public:
+        explicit type_name(const std::type_info& info) : info_(&info) {}
+        friend std::ostream& operator<<(std::ostream& s, const type_name& t)
+        {
+            t.serialize(s, *t.info_);
+            return s;
+        }
+
+    private:
+        static void serialize(std::ostream& s, const std::type_info& info)
+        {
+            const char* name = info.name();
+#ifdef __GNUC__
+            int status = 0;
+            struct Deleter
+            {
+                void operator()(const void* p) { std::free(const_cast<void*>(p)); }
+            };
+            std::unique_ptr<const char, Deleter> demangled(abi::__cxa_demangle(name, 0, 0, &status));
+            if(!status && demangled)
+                name = demangled.get();
+#endif
+            serialize(s, name);
+        }
+
+        typedef std::string::size_type size_type;
+
+        static void serialize(std::ostream& s, std::string name)
+        {
+            const size_type nm = rfind(name, ':') + 1;
+            const size_type tpl = name.find('<', nm);
+            s << clean(name.substr(nm, tpl - nm));
+            if(tpl == std::string::npos)
+                return;
+            s << '<';
+            list(s, name.substr(tpl + 1, name.rfind('>') - tpl - 1));
+            s << '>';
+        }
+        static void list(std::ostream& s, const std::string& name)
+        {
+            const size_type comma = rfind(name, ',');
+            if(comma != std::string::npos)
+            {
+                list(s, name.substr(0, comma));
+                s << ", ";
+            }
+            serialize(s, name.substr(comma + 1));
+        }
+        static std::string clean(std::string name)
+        {
+            boost::algorithm::trim(name);
+            boost::algorithm::erase_all(name, "class ");
+            boost::algorithm::erase_all(name, "struct ");
+            boost::algorithm::erase_all(name, "__ptr64");
+            boost::algorithm::replace_all(name, " &", "&");
+            boost::algorithm::replace_all(name, "& ", "&");
+            boost::algorithm::replace_all(name, " *", "*");
+            boost::algorithm::replace_all(name, "* ", "*");
+            return name;
+        }
+        static size_type rfind(const std::string& name, char c)
+        {
+            size_type count = 0;
+            for(size_type i = name.size() - 1; i > 0; --i)
+            {
+                if(name[i] == '>')
+                    ++count;
+                else if(name[i] == '<')
+                    --count;
+                if(name[i] == c && count == 0)
+                    return i;
+            }
+            return std::string::npos;
+        }
+
+        const std::type_info* info_;
+    };
+    template<typename T>
+    type_name make_type_name()
+    {
+        return type_name(typeid(T));
+    }
+    template<typename T>
+    type_name make_type_name(const T&)
+    {
+        return type_name(typeid(T));
+    }
+}} // namespace mock::detail
+
+#endif // MOCK_TYPE_NAME_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/verifiable.hpp
+++ b/thirdparty/turtle/turtle/detail/verifiable.hpp
@ -0,0 +1,29 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_VERIFIABLE_HPP_INCLUDED
+#define MOCK_VERIFIABLE_HPP_INCLUDED
+
+#include "../config.hpp"
+
+namespace mock { namespace detail {
+    class verifiable
+    {
+    public:
+        verifiable() = default;
+        verifiable(const verifiable&) = delete;
+        verifiable& operator=(const verifiable&) = delete;
+        virtual ~verifiable() = default;
+
+        virtual bool verify() const = 0;
+
+        virtual void reset() = 0;
+    };
+}} // namespace mock::detail
+
+#endif // MOCK_VERIFIABLE_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/detail/void_t.hpp
+++ b/thirdparty/turtle/turtle/detail/void_t.hpp
@ -0,0 +1,23 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Alexander Grund 2020
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_VOID_T_HPP_INCLUDED
+#define MOCK_VOID_T_HPP_INCLUDED
+
+namespace mock { namespace detail {
+    template<typename...>
+    struct make_void
+    {
+        using type = void;
+    };
+    /// Standard helper to implement the detection idiom. Returns always void
+    template<typename... Ts>
+    using void_t = typename make_void<Ts...>::type;
+}} // namespace mock::detail
+
+#endif // MOCK_VOID_T_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/error.hpp
+++ b/thirdparty/turtle/turtle/error.hpp
@ -0,0 +1,70 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_ERROR_HPP_INCLUDED
+#define MOCK_ERROR_HPP_INCLUDED
+
+#include "config.hpp"
+#ifdef MOCK_USE_BOOST_TEST
+#    include "exception.hpp"
+#    include <boost/exception/enable_current_exception.hpp>
+#    include <boost/test/framework.hpp>
+#    include <boost/test/test_tools.hpp>
+#    include <boost/test/unit_test_suite.hpp>
+#    include <boost/version.hpp>
+
+namespace mock {
+template<typename Result>
+struct error
+{
+    static Result abort()
+    {
+        boost::unit_test::framework::test_unit_aborted(boost::unit_test::framework::current_test_case());
+        throw boost::enable_current_exception(exception());
+    }
+
+    static void pass(const char* file, int line)
+    {
+        boost::unit_test::unit_test_log.set_checkpoint(file, static_cast<std::size_t>(line));
+    }
+
+    template<typename Context>
+    static void fail(const char* message, const Context& context, const char* file = "unknown location", int line = 0)
+    {
+        boost::unit_test::framework::assertion_result(
+#    if BOOST_VERSION < 105900
+          false
+#    else
+          boost::unit_test::AR_FAILED
+#    endif
+        );
+        boost::unit_test::unit_test_log << boost::unit_test::log::begin(file, static_cast<std::size_t>(line))
+                                        << boost::unit_test::log_all_errors << message << ": " << context
+                                        << boost::unit_test::log::end();
+    }
+
+    template<typename Context>
+    static void call(const Context& context, const char* file, int line)
+    {
+        boost::unit_test::framework::assertion_result(
+#    if BOOST_VERSION < 105900
+          true
+#    else
+          boost::unit_test::AR_PASSED
+#    endif
+        );
+        boost::unit_test::unit_test_log << boost::unit_test::log::begin(file, static_cast<std::size_t>(line))
+                                        << boost::unit_test::log_successful_tests
+                                        << "mock expectation fulfilled: " << context << boost::unit_test::log::end();
+    }
+};
+} // namespace mock
+
+#endif // MOCK_USE_BOOST_TEST
+
+#endif // MOCK_ERROR_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/exception.hpp
+++ b/thirdparty/turtle/turtle/exception.hpp
@ -0,0 +1,23 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_EXCEPTION_HPP_INCLUDED
+#define MOCK_EXCEPTION_HPP_INCLUDED
+
+#include "config.hpp"
+#ifdef MOCK_USE_BOOST_TEST
+#    include <boost/test/execution_monitor.hpp>
+
+namespace mock {
+struct exception : virtual boost::execution_aborted
+{};
+} // namespace mock
+
+#endif // MOCK_USE_BOOST_TEST
+
+#endif // MOCK_EXCEPTION_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/format.hpp
+++ b/thirdparty/turtle/turtle/format.hpp
@ -0,0 +1,24 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_FORMAT_HPP_INCLUDED
+#define MOCK_FORMAT_HPP_INCLUDED
+
+#include "config.hpp"
+#include "detail/formatter.hpp"
+
+namespace mock {
+template<typename T>
+detail::formatter<T> format(const T& t)
+{
+    return detail::formatter<T>(t);
+}
+
+} // namespace mock
+
+#endif // MOCK_FORMAT_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/log.hpp
+++ b/thirdparty/turtle/turtle/log.hpp
@ -0,0 +1,196 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_LOG_HPP_INCLUDED
+#define MOCK_LOG_HPP_INCLUDED
+
+#include "config.hpp"
+#include "format.hpp"
+#include "stream.hpp"
+#include <boost/detail/container_fwd.hpp>
+#include <boost/none.hpp>
+#include <memory>
+#include <type_traits>
+
+namespace boost {
+template<typename T>
+class shared_ptr;
+template<typename T>
+class weak_ptr;
+template<typename T>
+class reference_wrapper;
+template<typename T>
+class optional;
+
+namespace phoenix {
+    template<typename T>
+    struct actor;
+}
+namespace lambda {
+    template<typename T>
+    class lambda_functor;
+}
+namespace assign_detail {
+    template<typename T>
+    class generic_list;
+}
+} // namespace boost
+
+namespace mock {
+namespace detail {
+    template<typename T>
+    void serialize(stream& s, const T& begin, const T& end)
+    {
+        s << '(';
+        for(T it = begin; it != end; ++it)
+            s << (it == begin ? "" : ",") << mock::format(*it);
+        s << ')';
+    }
+    template<typename T>
+    struct is_callable_impl : std::false_type
+    {};
+    template<typename R, typename... Args>
+    struct is_callable_impl<R(Args...)> : std::true_type
+    {};
+    template<typename T>
+    struct is_callable : is_callable_impl<std::remove_cv_t<T>>
+    {};
+} // namespace detail
+
+template<typename T1, typename T2>
+stream& operator<<(stream& s, const std::pair<T1, T2>& p)
+{
+    return s << '(' << mock::format(p.first) << ',' << mock::format(p.second) << ')';
+}
+
+template<typename T, typename A>
+stream& operator<<(stream& s, const std::deque<T, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename T, typename A>
+stream& operator<<(stream& s, const std::list<T, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename T, typename A>
+stream& operator<<(stream& s, const std::vector<T, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename K, typename T, typename C, typename A>
+stream& operator<<(stream& s, const std::map<K, T, C, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename K, typename T, typename C, typename A>
+stream& operator<<(stream& s, const std::multimap<K, T, C, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename T, typename C, typename A>
+stream& operator<<(stream& s, const std::set<T, C, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename T, typename C, typename A>
+stream& operator<<(stream& s, const std::multiset<T, C, A>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename T>
+stream& operator<<(stream& s, const boost::assign_detail::generic_list<T>& t)
+{
+    detail::serialize(s, t.begin(), t.end());
+    return s;
+}
+template<typename T>
+stream& operator<<(stream& s, const boost::reference_wrapper<T>& t)
+{
+    return s << mock::format(t.get());
+}
+template<typename T>
+stream& operator<<(stream& s, const std::reference_wrapper<T>& t)
+{
+    return s << mock::format(t.get());
+}
+template<typename T>
+stream& operator<<(stream& s, const boost::shared_ptr<T>& t)
+{
+    return s << mock::format(t.get());
+}
+template<typename T>
+stream& operator<<(stream& s, const boost::weak_ptr<T>& t)
+{
+    return s << mock::format(t.lock());
+}
+inline stream& operator<<(stream& s, const boost::none_t&)
+{
+    return s << "none";
+}
+template<typename T>
+stream& operator<<(stream& s, const boost::optional<T>& t)
+{
+    if(t)
+        return s << mock::format(t.get());
+    return s << boost::none;
+}
+
+template<typename T>
+stream& operator<<(stream& s, const std::shared_ptr<T>& t)
+{
+    return s << mock::format(t.get());
+}
+template<typename T>
+stream& operator<<(stream& s, const std::weak_ptr<T>& t)
+{
+    return s << mock::format(t.lock());
+}
+template<typename T, typename D>
+stream& operator<<(stream& s, const std::unique_ptr<T, D>& p)
+{
+    return s << mock::format(p.get());
+}
+
+template<typename T>
+stream& operator<<(stream& s, const boost::lambda::lambda_functor<T>&)
+{
+    return s << '?';
+}
+template<typename T>
+stream& operator<<(stream& s, const boost::phoenix::actor<T>&)
+{
+    return s << '?';
+}
+
+inline stream& operator<<(stream& s, std::nullptr_t)
+{
+    return s << "nullptr";
+}
+
+template<typename T>
+std::enable_if_t<detail::is_callable<T>::value, stream&> operator<<(stream& s, T*)
+{
+    return s << '?';
+}
+template<typename T>
+std::enable_if_t<!detail::is_callable<T>::value, stream&> operator<<(stream& s, T* t)
+{
+    *s.s_ << t;
+    return s;
+}
+} // namespace mock
+
+#endif // MOCK_LOG_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/matcher.hpp
+++ b/thirdparty/turtle/turtle/matcher.hpp
@ -0,0 +1,74 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_MATCHER_HPP_INCLUDED
+#define MOCK_MATCHER_HPP_INCLUDED
+
+#include "config.hpp"
+#include "constraints.hpp"
+#include "detail/is_functor.hpp"
+#include "detail/ref_arg.hpp"
+#include "log.hpp"
+#include <cstring>
+#include <functional>
+#include <type_traits>
+
+namespace mock {
+template<typename Actual, typename Expected, typename Enable = void>
+class matcher
+{
+public:
+    explicit matcher(Expected expected) : expected_(expected) {}
+    bool operator()(std::add_lvalue_reference_t<const Actual> actual)
+    {
+        return mock::equal(mock::unwrap_ref(expected_)).c_(actual);
+    }
+    friend std::ostream& operator<<(std::ostream& s, const matcher& m) { return s << mock::format(m.expected_); }
+
+private:
+    Expected expected_;
+};
+
+template<>
+class matcher<const char*, const char*>
+{
+public:
+    explicit matcher(const char* expected) : expected_(expected) {}
+    bool operator()(const char* actual) { return std::strcmp(actual, expected_) == 0; }
+    friend std::ostream& operator<<(std::ostream& s, const matcher& m) { return s << mock::format(m.expected_); }
+
+private:
+    const char* expected_;
+};
+
+template<typename Actual, typename Constraint>
+class matcher<Actual, mock::constraint<Constraint>>
+{
+public:
+    explicit matcher(const constraint<Constraint>& c) : c_(c.c_) {}
+    bool operator()(detail::ref_arg_t<Actual> actual) { return c_(static_cast<detail::ref_arg_t<Actual>>(actual)); }
+    friend std::ostream& operator<<(std::ostream& s, const matcher& m) { return s << mock::format(m.c_); }
+
+private:
+    Constraint c_;
+};
+
+template<typename Actual, typename Functor>
+class matcher<Actual, Functor, std::enable_if_t<detail::is_functor<Functor, Actual>::value>>
+{
+public:
+    explicit matcher(const Functor& f) : c_(f) {}
+    bool operator()(detail::ref_arg_t<Actual> actual) { return c_(static_cast<detail::ref_arg_t<Actual>>(actual)); }
+    friend std::ostream& operator<<(std::ostream& s, const matcher& m) { return s << mock::format(m.c_); }
+
+private:
+    Functor c_;
+};
+} // namespace mock
+
+#endif // MOCK_MATCHER_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/mock.hpp
+++ b/thirdparty/turtle/turtle/mock.hpp
@ -0,0 +1,116 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_MOCK_HPP_INCLUDED
+#define MOCK_MOCK_HPP_INCLUDED
+
+#include "cleanup.hpp"
+#include "config.hpp"
+#include "detail/mock_impl.hpp"
+#include "object.hpp"
+#include "reset.hpp"
+#include "verify.hpp"
+
+/// MOCK_CLASS( name )
+/// Define a class
+#define MOCK_CLASS(name) struct name : mock::object
+
+/// MOCK_BASE_CLASS( name, base )
+/// Define a class deriving from a base class
+#define MOCK_BASE_CLASS(name, ...) struct name : __VA_ARGS__, mock::object, mock::detail::base<__VA_ARGS__>
+
+/// MOCK_PROTECT_SIGNATURE( signature )
+/// Use this with MOCK_FUNCTION/MOCK_*_METHOD if the return type contains commas
+#define MOCK_PROTECT_SIGNATURE(...) mock::detail::unwrap_signature_t<void(__VA_ARGS__)>
+
+/// MOCK_FUNCTOR( name, signature )
+/// Define a callable variable/member
+#define MOCK_FUNCTOR(name, ...) mock::detail::functor<__VA_ARGS__> name, name##_mock
+
+/// MOCK_CONVERSION_OPERATOR( [calling convention] name, type, identifier )
+/// generates both const and non-const conversion operators
+#define MOCK_CONVERSION_OPERATOR(M, T, identifier)              \
+    M T() const { return MOCK_ANONYMOUS_HELPER(identifier)(); } \
+    M T() { return MOCK_ANONYMOUS_HELPER(identifier)(); }       \
+    MOCK_METHOD_HELPER(T(), identifier)
+/// MOCK_CONST_CONVERSION_OPERATOR( [calling convention] name, type, identifier )
+/// generates only a const conversion operator
+#define MOCK_CONST_CONVERSION_OPERATOR(M, T, identifier)        \
+    M T() const { return MOCK_ANONYMOUS_HELPER(identifier)(); } \
+    MOCK_METHOD_HELPER(T(), identifier)
+/// MOCK_NON_CONST_CONVERSION_OPERATOR( [calling convention] name, type, identifier )
+/// generates only a non-const conversion operator
+#define MOCK_NON_CONST_CONVERSION_OPERATOR(M, T, identifier) \
+    M T() { return MOCK_ANONYMOUS_HELPER(identifier)(); }    \
+    MOCK_METHOD_HELPER(T(), identifier)
+
+/// MOCK_CONSTRUCTOR( [calling convention] name, arity, parameters, identifier )
+/// As constructors do not have a return type, the usual signature gets restricted here to just the parameters.
+#define MOCK_CONSTRUCTOR(T, arity, parameters, identifier) MOCK_CONSTRUCTOR_AUX(T, arity, parameters, identifier)
+
+/// MOCK_DESTRUCTOR( [calling convention] ~name, identifier )
+#define MOCK_DESTRUCTOR(T, identifier)           \
+    T()                                          \
+    {                                            \
+        try                                      \
+        {                                        \
+            MOCK_ANONYMOUS_HELPER(identifier)(); \
+        } catch(...)                             \
+        {}                                       \
+    }                                            \
+    MOCK_METHOD_HELPER(void(), identifier)
+
+/// MOCK_METHOD( [calling convention] name, arity[, signature[, identifier]] )
+/// generates both const and non-const methods
+/// The 'signature' can be omitted if it can be uniquely identified from the base class
+/// if 'identifier' is omitted it will default to 'name'
+#define MOCK_METHOD(M, ...)                                                 \
+    MOCK_METHOD_EXT(M,                                                      \
+                    MOCK_VARIADIC_ELEM_0(__VA_ARGS__, ),                    \
+                    MOCK_VARIADIC_ELEM_1(__VA_ARGS__, MOCK_SIGNATURE(M), ), \
+                    MOCK_VARIADIC_ELEM_2(__VA_ARGS__, M, M, ))
+/// MOCK_CONST_METHOD( [calling convention] name, arity[, signature[, identifier]] )
+/// generates only the const version of the method
+/// The 'signature' can be omitted if it can be uniquely identified from the base class
+/// if 'identifier' is omitted it will default to 'name'
+#define MOCK_CONST_METHOD(M, ...)                                                 \
+    MOCK_CONST_METHOD_EXT(M,                                                      \
+                          MOCK_VARIADIC_ELEM_0(__VA_ARGS__, ),                    \
+                          MOCK_VARIADIC_ELEM_1(__VA_ARGS__, MOCK_SIGNATURE(M), ), \
+                          MOCK_VARIADIC_ELEM_2(__VA_ARGS__, M, M, ))
+/// MOCK_NON_CONST_METHOD( [calling convention] name, arity[, signature[, identifier]] )
+/// generates only the non-const version of the method
+/// The 'signature' can be omitted if it can be uniquely identified from the base class
+/// if 'identifier' is omitted it will default to 'name'
+#define MOCK_NON_CONST_METHOD(M, ...)                                                 \
+    MOCK_NON_CONST_METHOD_EXT(M,                                                      \
+                              MOCK_VARIADIC_ELEM_0(__VA_ARGS__, ),                    \
+                              MOCK_VARIADIC_ELEM_1(__VA_ARGS__, MOCK_SIGNATURE(M), ), \
+                              MOCK_VARIADIC_ELEM_2(__VA_ARGS__, M, M, ))
+
+/// MOCK_FUNCTION( [calling convention] name, arity, signature[, identifier] )
+/// if 'identifier' is omitted it will default to 'name'
+#define MOCK_FUNCTION(F, arity, ...) \
+    MOCK_FUNCTION_AUX(F, arity, MOCK_VARIADIC_ELEM_0(__VA_ARGS__, ), MOCK_VARIADIC_ELEM_1(__VA_ARGS__, F, ), inline)
+
+/// MOCK_STATIC_METHOD( [calling convention] name, arity, signature[, identifier] )
+/// if 'identifier' is omitted it will default to 'name'
+#define MOCK_STATIC_METHOD(F, arity, ...) \
+    MOCK_FUNCTION_AUX(F, arity, MOCK_VARIADIC_ELEM_0(__VA_ARGS__, ), MOCK_VARIADIC_ELEM_1(__VA_ARGS__, F, ), static)
+
+/// MOCK_EXPECT( identifier )
+/// Begin setting up expectation for the identifier
+#define MOCK_EXPECT(identifier) MOCK_HELPER(identifier).expect(__FILE__, __LINE__)
+/// MOCK_RESET( identifier )
+/// Reset all pending expectations for the identifier
+#define MOCK_RESET(identifier) MOCK_HELPER(identifier).reset(__FILE__, __LINE__)
+/// MOCK_VERIFY( identifier )
+/// Verify all expectations for the identifier have been met
+#define MOCK_VERIFY(identifier) MOCK_HELPER(identifier).verify(__FILE__, __LINE__)
+
+#endif // MOCK_MOCK_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/object.hpp
+++ b/thirdparty/turtle/turtle/object.hpp
@ -0,0 +1,70 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_OBJECT_HPP_INCLUDED
+#define MOCK_OBJECT_HPP_INCLUDED
+
+#include "config.hpp"
+#include "detail/object_impl.hpp"
+#include "detail/root.hpp"
+#include "detail/type_name.hpp"
+#include <boost/optional.hpp>
+#include <boost/test/utils/basic_cstring/basic_cstring.hpp>
+#include <memory>
+#include <type_traits>
+
+namespace mock {
+class object;
+
+namespace detail {
+    template<typename E>
+    E& configure(const object& o,
+                 E& e,
+                 boost::unit_test::const_string instance,
+                 boost::optional<type_name> type,
+                 boost::unit_test::const_string name);
+
+    template<typename T, typename E>
+    E& configure(const T& t,
+                 E& e,
+                 boost::unit_test::const_string instance,
+                 boost::optional<type_name> type,
+                 boost::unit_test::const_string name,
+                 std::enable_if_t<!std::is_base_of<object, T>::value>* = 0)
+    {
+        e.configure(detail::root, &t, instance, type, name);
+        return e;
+    }
+} // namespace detail
+class object
+{
+public:
+    object() : impl_(std::make_shared<detail::object_impl>()) {}
+
+protected:
+    ~object() = default;
+
+public:
+    std::shared_ptr<detail::object_impl> impl_;
+};
+
+namespace detail {
+    template<typename E>
+    E& configure(const object& o,
+                 E& e,
+                 boost::unit_test::const_string instance,
+                 boost::optional<type_name> type,
+                 boost::unit_test::const_string name)
+    {
+        e.configure(*o.impl_, o.impl_.get(), instance, type, name);
+        return e;
+    }
+} // namespace detail
+} // namespace mock
+
+#endif // MOCK_OBJECT_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/reset.hpp
+++ b/thirdparty/turtle/turtle/reset.hpp
@ -0,0 +1,33 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_RESET_HPP_INCLUDED
+#define MOCK_RESET_HPP_INCLUDED
+
+#include "config.hpp"
+#include "detail/functor.hpp"
+#include "detail/root.hpp"
+#include "object.hpp"
+
+namespace mock {
+inline void reset()
+{
+    detail::root.reset();
+}
+inline void reset(const object& o)
+{
+    o.impl_->reset();
+}
+template<typename Signature>
+void reset(detail::functor<Signature>& f)
+{
+    f.reset();
+}
+} // namespace mock
+
+#endif // MOCK_RESET_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/sequence.hpp
+++ b/thirdparty/turtle/turtle/sequence.hpp
@ -0,0 +1,26 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2008
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_SEQUENCE_HPP_INCLUDED
+#define MOCK_SEQUENCE_HPP_INCLUDED
+
+#include "config.hpp"
+#include "detail/sequence_impl.hpp"
+#include <memory>
+
+namespace mock {
+class sequence
+{
+public:
+    sequence() : impl_(std::make_shared<detail::sequence_impl>()) {}
+
+    std::shared_ptr<detail::sequence_impl> impl_;
+};
+} // namespace mock
+
+#endif // MOCK_SEQUENCE_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/stream.hpp
+++ b/thirdparty/turtle/turtle/stream.hpp
@ -0,0 +1,114 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2011
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_STREAM_HPP_INCLUDED
+#define MOCK_STREAM_HPP_INCLUDED
+
+#include "config.hpp"
+#include <memory>
+#include <ostream>
+
+namespace mock {
+struct stream
+{
+    explicit stream(std::ostream& s) : s_(&s) {}
+    std::ostream* s_;
+};
+
+#ifdef MOCK_USE_CONVERSIONS
+
+namespace detail { namespace conversion {
+    struct sink
+    {
+        template<typename T>
+        sink(const T&)
+        {}
+    };
+
+    inline std::ostream& operator<<(std::ostream& s, const sink&) { return s << '?'; }
+
+    struct holder
+    {
+        holder() = default;
+        holder(const holder&) = delete;
+        holder& operator=(const holder&) = delete;
+
+        virtual ~holder() = default;
+        virtual void serialize(std::ostream& s) const = 0;
+    };
+
+    template<typename T>
+    struct holder_imp : holder
+    {
+        explicit holder_imp(const T& t) : t_(t) {}
+        virtual void serialize(std::ostream& s) const
+        {
+            // if an error about an ambiguous conversion is generated by the
+            // line below the solution is to add a serialization operator to a
+            // mock::stream for T
+            s << t_;
+        }
+        const T& t_;
+    };
+
+    struct any
+    {
+        template<typename T>
+        any(const T& t) : h_(std::make_unique<holder_imp<T>>(t))
+        {}
+        std::unique_ptr<holder> h_;
+    };
+}} // namespace detail::conversion
+
+inline stream& operator<<(stream& s, const detail::conversion::any& d)
+{
+    d.h_->serialize(*s.s_);
+    return s;
+}
+
+#else // MOCK_USE_CONVERSIONS
+
+namespace detail { namespace conversion {
+    template<typename S, typename T>
+    S& operator<<(S& s, const T&)
+    {
+        return s << '?';
+    }
+}} // namespace detail::conversion
+
+template<typename T>
+stream& operator<<(stream& s, const T& t)
+{
+    using namespace detail::conversion;
+    *s.s_ << t;
+    return s;
+}
+
+#endif // MOCK_USE_CONVERSIONS
+
+namespace detail {
+    template<typename T>
+    void serialize(stream& s, const T& t)
+    {
+        // if an error about an ambiguous conversion is generated by the
+        // line below the solution is to add a serialization operator to a
+        // mock::stream for T
+        s << t;
+    }
+    inline void serialize(stream& s, bool b) { s << (b ? "true" : "false"); }
+    template<typename C, typename T, typename A>
+    void serialize(stream& s, const std::basic_string<C, T, A>& str)
+    {
+        s << '"' << str << '"';
+    }
+    inline void serialize(stream& s, const char* const str) { s << '"' << str << '"'; }
+    inline void serialize(stream& s, unsigned char c) { s << static_cast<int>(c); }
+} // namespace detail
+} // namespace mock
+
+#endif // MOCK_STREAM_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/unwrap_reference.hpp
+++ b/thirdparty/turtle/turtle/unwrap_reference.hpp
@ -0,0 +1,41 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Alexander Grund 2020
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_UNWRAP_REFERENCE_HPP_INCLUDED
+#define MOCK_UNWRAP_REFERENCE_HPP_INCLUDED
+
+#include <functional>
+#include <type_traits>
+
+namespace mock {
+template<class T>
+struct unwrap_reference
+{
+    using type = T;
+};
+template<class T>
+struct unwrap_reference<std::reference_wrapper<T>>
+{
+    using type = T;
+};
+template<class T>
+struct unwrap_reference<const std::reference_wrapper<T>>
+{
+    using type = T;
+};
+template<class T>
+using unwrap_reference_t = typename unwrap_reference<T>::type;
+
+template<class T>
+BOOST_FORCEINLINE unwrap_reference_t<T>& unwrap_ref(T& t) noexcept
+{
+    return t;
+}
+} // namespace mock
+
+#endif // MOCK_UNWRAP_REFERENCE_HPP_INCLUDED
--- a/thirdparty/turtle/turtle/verify.hpp
+++ b/thirdparty/turtle/turtle/verify.hpp
@ -0,0 +1,33 @@
+// http://turtle.sourceforge.net
+//
+// Copyright Mathieu Champlon 2012
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef MOCK_VERIFY_HPP_INCLUDED
+#define MOCK_VERIFY_HPP_INCLUDED
+
+#include "config.hpp"
+#include "detail/functor.hpp"
+#include "detail/root.hpp"
+#include "object.hpp"
+
+namespace mock {
+inline bool verify()
+{
+    return detail::root.verify();
+}
+inline bool verify(const object& o)
+{
+    return o.impl_->verify();
+}
+template<typename Signature>
+bool verify(const detail::functor<Signature>& f)
+{
+    return f.verify();
+}
+} // namespace mock
+
+#endif // MOCK_VERIFY_HPP_INCLUDED