Add TestGypXcodeNinja to run tests against the xcode-ninja generator

test/copies/gyptest-default.py

 #!/usr/bin/env python
 
 # Copyright (c) 2009 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Verifies file copies using the build tool default.
 """
 
 import TestGyp
 
 test = TestGyp.TestGyp()
 
-test.run_gyp('copies.gyp', chdir='src')
+test.run_gyp('copies.gyp',
+             '-G', 'xcode_ninja_target_pattern=^(?!copies_null)',
+             chdir='src')
 
 test.relocate('src', 'relocate/src')
 
 test.build('copies.gyp', chdir='relocate/src')
 
 test.must_match(['relocate', 'src', 'copies-out', 'file1'], 'file1 contents\n')
 
 test.built_file_must_match('copies-out/file2',
                            'file2 contents\n',
                            chdir='relocate/src')
 
 test.built_file_must_match('copies-out/directory/file3',
                            'file3 contents\n',
                            chdir='relocate/src')
 test.built_file_must_match('copies-out/directory/file4',
                            'file4 contents\n',
                            chdir='relocate/src')
 test.built_file_must_match('copies-out/directory/subdir/file5',
                            'file5 contents\n',
                            chdir='relocate/src')
 test.built_file_must_match('copies-out/subdir/file6',
                            'file6 contents\n',
                            chdir='relocate/src')
 
 test.pass_test()