Improve error handling when reading test board data

qa/pcbnew_utils/board_file_utils.cpp

@@ -106,6 +106,12 @@ std::unique_ptr<BOARD> ReadBoardFromFileOrStream( const std::string& aFilename,
     else
     {
         file_stream.open( aFilename );
+
+        if( !file_stream.is_open() )
+        {
+            return nullptr;
+        }
+
         in_stream = &file_stream;
     }
 
@@ -127,6 +133,12 @@ std::unique_ptr<FOOTPRINT> ReadFootprintFromFileOrStream( const std::string& aFi
     else
     {
         file_stream.open( aFilename );
+
+        if( !file_stream.is_open() )
+        {
+            return nullptr;
+        }
+
         in_stream = &file_stream;
     }
 

qa/pcbnew_utils/board_test_utils.cpp

@@ -86,7 +86,17 @@ void LoadBoard( SETTINGS_MANAGER& aSettingsManager, const wxString& aRelPath,
     else if( legacyProject.Exists() )
         aSettingsManager.LoadProject( legacyProject.GetFullPath() );
 
+    BOOST_TEST_MESSAGE( "Loading board file: " << boardPath );
+
+    try {
         aBoard = ReadBoardFromFileOrStream( boardPath );
+    }
+    catch( const IO_ERROR& ioe )
+    {
+        BOOST_TEST_ERROR( ioe.What() );
+    }
+
+    BOOST_REQUIRE( aBoard );
 
     if( projectFile.Exists() || legacyProject.Exists() )
         aBoard->SetProject( &aSettingsManager.Prj() );