Begin implementing V8 bindings for Mojo

mojo/public/bindings/js/v8_runner_unittest.cc

+// Copyright 2013 The Chromium 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 "mojo/public/bindings/js/v8_runner.h"
+
+#include "mojo/public/bindings/js/v8_string.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace mojo {
+namespace js {
+namespace {
+
+std::string ReadGlobal(v8::Isolate* isolate,
+                       v8::Handle<v8::Context> context,
+                       std::string property) {
+  v8::Handle<v8::String> v8_property =
+      Wrapper<std::string>::ToObject(isolate, property);
+  return Wrapper<std::string>::ToNative(context->Global()->Get(v8_property));
+}
+
+TEST(Runner, Basic) {
+  std::string source =
+      "function main(mojo) {\n"
+      "  if (mojo.createMessagePipe)\n"
+      "    this.result = 'PASS';\n"
+      "  else\n"
+      "    this.result = 'FAIL';\n"
+      "}\n";
+
+  v8::Isolate* isolate = v8::Isolate::GetCurrent();
+  Runner runner(isolate);
+  Runner::Scope scope(&runner);
+  runner.Run(v8::Script::New(Wrapper<std::string>::ToObject(isolate, source)));
+
+  std::string result = ReadGlobal(isolate, runner.context(isolate), "result");
+  EXPECT_EQ("PASS", result);
+}
+
+}  // namespace
+}  // namespace js
+}  // namespace mojo