These getpwnam('') tests are silly and not portable

ext/posix/tests/posix_getgrnam.phpt

@@ -1,19 +0,0 @@
---TEST--
-posix_getgrnam(): Basic tests
---SKIPIF--
-<?php
-if (!extension_loaded('posix')) die('skip - POSIX extension not loaded'); 
-if (!function_exists('posix_getgrnam')) die('skip posix_getgrnam() not found');
-?>
---FILE--
-<?php
-
-var_dump(posix_getgrnam(NULL));
-var_dump(posix_getgrnam(1));
-var_dump(posix_getgrnam(''));
-
-?>
---EXPECT--
-bool(false)
-bool(false)
-bool(false)

ext/posix/tests/posix_getgrnam_basic.phpt

@@ -1,23 +0,0 @@
---TEST--
-posix_getgrnam(): Basic tests
---SKIPIF--
-<?php
-if (!extension_loaded('posix')) die('skip - POSIX extension not loaded'); 
-if (!function_exists('posix_getgrnam')) die('skip posix_getgrnam() not found');
-?>
---FILE--
-<?php
-echo "Basic test of POSIX posix_getgrnam function\n"; 		
-
-var_dump(posix_getgrnam(NULL));
-var_dump(posix_getgrnam(1));
-var_dump(posix_getgrnam(''));
-
-?>
-===DONE===
---EXPECT--
-Basic test of POSIX posix_getgrnam function
-bool(false)
-bool(false)
-bool(false)
-===DONE===

ext/posix/tests/posix_getpwnam.phpt

@@ -1,19 +0,0 @@
---TEST--
-posix_getpwnam(): Basic tests
---SKIPIF--
-<?php
-if (!extension_loaded('posix')) die('skip - POSIX extension not loaded'); 
-if (!function_exists('posix_getpwnam')) die('skip posix_getpwnam() not found');
-?>
---FILE--
-<?php
-
-var_dump(posix_getpwnam(1));
-var_dump(posix_getpwnam(''));
-var_dump(posix_getpwnam(NULL));
-
-?>
---EXPECT--
-bool(false)
-bool(false)
-bool(false)

ext/posix/tests/posix_getpwnam_basic.phpt

@@ -1,23 +0,0 @@
---TEST--
-posix_getpwnam(): Basic tests
---SKIPIF--
-<?php
-if (!extension_loaded('posix')) die('skip - POSIX extension not loaded'); 
-if (!function_exists('posix_getpwnam')) die('skip posix_getpwnam() not found');
-?>
---FILE--
-<?php
-echo "Basic test of POSIX posix_getpwnam function\n"; 
-
-var_dump(posix_getpwnam(1));
-var_dump(posix_getpwnam(''));
-var_dump(posix_getpwnam(NULL));
-
-?>
-===DONE====
---EXPECT--
-Basic test of POSIX posix_getpwnam function
-bool(false)
-bool(false)
-bool(false)
-===DONE====