Initial import of unittests using GTest/GMock.

test/unittests/test-zone.cc

Index: test/unittests/test-zone.cc
diff --git a/test/unittests/test-zone.cc b/test/unittests/test-zone.cc
new file mode 100644
index 0000000000000000000000000000000000000000..a74594a78e171153a37c991882bc400cd249c133
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+++ b/test/unittests/test-zone.cc
@@ -0,0 +1,17 @@
+// 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.
+
+#include "test/unittests/test-zone.h"
+
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace v8 {
+namespace internal {
+
+TEST_F(ZoneTest, AllocationSizeIsEmptyOnStart) {
+  EXPECT_EQ(0u, zone()->allocation_size());
+}
+
+}  // namespace internal
+}  // namespace v8