Initial import of unittests using GTest/GMock.

test/unittests/unittests.h

Index: test/unittests/unittests.h
diff --git a/test/unittests/unittests.h b/test/unittests/unittests.h
new file mode 100644
index 0000000000000000000000000000000000000000..f8f267aad18db88de49fb445ee1505caa518e290
--- /dev/null
+++ b/test/unittests/unittests.h
@@ -0,0 +1,47 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_UNITTESTS_UNITTESTS_H_
+#define V8_UNITTESTS_UNITTESTS_H_
+
+#include "src/compiler/pipeline.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// The COMPILER_TEST(Case, Name) macro works just like
+// TEST(Case, Name), except that the test is disabled
+// if the platform is not a supported TurboFan target.
+#if V8_TURBOFAN_TARGET
+#define COMPILER_TEST(Case, Name) TEST(Case, Name)
+#else  // V8_TURBOFAN_TARGET
+#define COMPILER_TEST(Case, Name) TEST(Case, DISABLED_##Name)
+#endif  // V8_TURBOFAN_TARGET
+
+
+// The COMPILER_TEST_F(Case, Name) macro works just like
+// TEST_F(Case, Name), except that the test is disabled
+// if the platform is not a supported TurboFan target.
+#if V8_TURBOFAN_TARGET
+#define COMPILER_TEST_F(Case, Name) TEST_F(Case, Name)
+#else  // V8_TURBOFAN_TARGET
+#define COMPILER_TEST_F(Case, Name) TEST_F(Case, DISABLED_##Name)
+#endif  // V8_TURBOFAN_TARGET
+
+namespace v8 {
+namespace internal {
+
+class EngineTest : public ::testing::Test {
+ public:
+  virtual ~EngineTest() {}
+
+  static void SetUpTestCase();
+  static void TearDownTestCase();
+
+ private:
+  static v8::Platform* platform_;
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_UNITTESTS_UNITTESTS_H_