Integrate ninja build with Visual Studio

test/msvs/external_builder/gyptest-all.py

Index: test/msvs/external_builder/gyptest-all.py
diff --git a/test/msvs/external_builder/gyptest-all.py b/test/msvs/external_builder/gyptest-all.py
new file mode 100644
index 0000000000000000000000000000000000000000..7649dd5c7f0de03a29a95ce970339057214ceba8
--- /dev/null
+++ b/test/msvs/external_builder/gyptest-all.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2013 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 that msvs_external_builder being set will invoke the provided
+msvs_external_builder_build_cmd and msvs_external_builder_clean_cmd, and will
+not invoke MSBuild actions and rules.
+"""
+
+import os
+import TestGyp
+
+test = TestGyp.TestGyp(formats=['msvs'], workdir='workarea_all')
+
+# without the flag set
+test.run_gyp('external.gyp')
+test.build('external.gyp', target='external')
+test.must_not_exist('external_builder.out')
+test.must_exist('msbuild_rule.out')
+test.must_exist('msbuild_action.out')
+test.must_match('msbuild_rule.out', 'msbuild_rule.py hello.z a b c')
+test.must_match('msbuild_action.out', 'msbuild_action.py x y z')
+os.remove('msbuild_rule.out')
+os.remove('msbuild_action.out')
+
+# with the flag set, using Build
+try:
+  os.environ['GYP_DEFINES'] = 'use_external_builder=1'
+  test.run_gyp('external.gyp')
+  test.build('external.gyp', target='external')
+finally:
+  del os.environ['GYP_DEFINES']
+test.must_not_exist('msbuild_rule.out')
+test.must_not_exist('msbuild_action.out')
+test.must_exist('external_builder.out')
+test.must_match('external_builder.out', 'external_builder.py build 1 2 3')
+os.remove('external_builder.out')
+
+# with the flag set, using Clean
+try:
+  os.environ['GYP_DEFINES'] = 'use_external_builder=1'
+  test.run_gyp('external.gyp')
+  test.build('external.gyp', target='external', clean=True)
+finally:
+  del os.environ['GYP_DEFINES']
+test.must_not_exist('msbuild_rule.out')
+test.must_not_exist('msbuild_action.out')
+test.must_exist('external_builder.out')
+test.must_match('external_builder.out', 'external_builder.py clean 4 5')
+os.remove('external_builder.out')
+
+test.pass_test()
+