cef/tests/unittests/v8_unittest.cc

// Copyright (c) 2009 The Chromium Embedded Framework 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 "include/cef.h"
#include "include/cef_runnable.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "test_handler.h"

bool g_V8TestV8HandlerExecuteCalled;
bool g_V8TestV8HandlerExecute2Called;

class V8TestV8Handler : public CefThreadSafeBase<CefV8Handler>
{
public:
  V8TestV8Handler(bool bindingTest) { binding_test_ = bindingTest; }

  virtual bool Execute(const CefString& name,
                       CefRefPtr<CefV8Value> object,
                       const CefV8ValueList& arguments,
                       CefRefPtr<CefV8Value>& retval,
                       CefString& exception)
  {
    TestExecute(name, object, arguments, retval, exception);
    return true;
  }

  void TestExecute(const CefString& name,
                   CefRefPtr<CefV8Value> object,
                   const CefV8ValueList& arguments,
                   CefRefPtr<CefV8Value>& retval,
                   CefString& exception)
  {
    if(name == "execute") {
      g_V8TestV8HandlerExecuteCalled = true;
      
      ASSERT_EQ((size_t)8, arguments.size());
      int argct = 0;
      
      // basic types
      ASSERT_TRUE(arguments[argct]->IsInt());
      ASSERT_EQ(5, arguments[argct]->GetIntValue());
      argct++;

      ASSERT_TRUE(arguments[argct]->IsDouble());
      ASSERT_EQ(6.543, arguments[argct]->GetDoubleValue());
      argct++;

      ASSERT_TRUE(arguments[argct]->IsBool());
      ASSERT_EQ(true, arguments[argct]->GetBoolValue());
      argct++;

      ASSERT_TRUE(arguments[argct]->IsString());
      ASSERT_EQ(arguments[argct]->GetStringValue(), "test string");
      argct++;

      CefRefPtr<CefV8Value> value;

      // array
      ASSERT_TRUE(arguments[argct]->IsArray());
      ASSERT_EQ(4, arguments[argct]->GetArrayLength());
      {
        int subargct = 0;
        value = arguments[argct]->GetValue(subargct);
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsInt());
        ASSERT_EQ(7, value->GetIntValue());
        subargct++;

        value = arguments[argct]->GetValue(subargct);
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsDouble());
        ASSERT_EQ(5.432, value->GetDoubleValue());
        subargct++;

        value = arguments[argct]->GetValue(subargct);
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsBool());
        ASSERT_EQ(false, value->GetBoolValue());
        subargct++;

        value = arguments[argct]->GetValue(subargct);
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsString());
        ASSERT_EQ(value->GetStringValue(), "another string");
        subargct++;
      }
      argct++;

      // object
      ASSERT_TRUE(arguments[argct]->IsObject());
      {
        value = arguments[argct]->GetValue("arg0");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsInt());
        ASSERT_EQ(2, value->GetIntValue());

        value = arguments[argct]->GetValue("arg1");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsDouble());
        ASSERT_EQ(3.433, value->GetDoubleValue());

        value = arguments[argct]->GetValue("arg2");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsBool());
        ASSERT_EQ(true, value->GetBoolValue());

        value = arguments[argct]->GetValue("arg3");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsString());
        ASSERT_EQ(value->GetStringValue(), "some string");
      }
      argct++;

      // function that returns a value
      ASSERT_TRUE(arguments[argct]->IsFunction());
      {
        CefV8ValueList args;
        args.push_back(CefV8Value::CreateInt(5));
        args.push_back(CefV8Value::CreateDouble(3.5));
        args.push_back(CefV8Value::CreateBool(true));
        args.push_back(CefV8Value::CreateString("10"));
        CefRefPtr<CefV8Value> rv;
        CefString exception;
        ASSERT_TRUE(arguments[argct]->ExecuteFunction(
            arguments[argct], args, rv, exception));
        ASSERT_TRUE(rv.get() != NULL);
        ASSERT_TRUE(rv->IsDouble());
        ASSERT_EQ(19.5, rv->GetDoubleValue());
      }
      argct++;

      // function that throws an exception
      ASSERT_TRUE(arguments[argct]->IsFunction());
      {
        CefV8ValueList args;
        args.push_back(CefV8Value::CreateDouble(5));
        args.push_back(CefV8Value::CreateDouble(0));
        CefRefPtr<CefV8Value> rv;
        CefString exception;
        ASSERT_TRUE(arguments[argct]->ExecuteFunction(
            arguments[argct], args, rv, exception));
        ASSERT_EQ(exception, "Uncaught My Exception");
      }
      argct++;

      if(binding_test_)
      {
        // values
        value = object->GetValue("intVal");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsInt());
        ASSERT_EQ(12, value->GetIntValue());

        value = object->GetValue("doubleVal");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsDouble());
        ASSERT_EQ(5.432, value->GetDoubleValue());

        value = object->GetValue("boolVal");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsBool());
        ASSERT_EQ(true, value->GetBoolValue());

        value = object->GetValue("stringVal");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsString());
        ASSERT_EQ(value->GetStringValue(), "the string");

        value = object->GetValue("arrayVal");
        ASSERT_TRUE(value.get() != NULL);
        ASSERT_TRUE(value->IsArray());
        {
          CefRefPtr<CefV8Value> value2;
          int subargct = 0;
          value2 = value->GetValue(subargct);
          ASSERT_TRUE(value2.get() != NULL);
          ASSERT_TRUE(value2->IsInt());
          ASSERT_EQ(4, value2->GetIntValue());
          subargct++;

          value2 = value->GetValue(subargct);
          ASSERT_TRUE(value2.get() != NULL);
          ASSERT_TRUE(value2->IsDouble());
          ASSERT_EQ(120.43, value2->GetDoubleValue());
          subargct++;

          value2 = value->GetValue(subargct);
          ASSERT_TRUE(value2.get() != NULL);
          ASSERT_TRUE(value2->IsBool());
          ASSERT_EQ(true, value2->GetBoolValue());
          subargct++;

          value2 = value->GetValue(subargct);
          ASSERT_TRUE(value2.get() != NULL);
          ASSERT_TRUE(value2->IsString());
          ASSERT_EQ(value2->GetStringValue(), "a string");
          subargct++;
        }
      }

      retval = CefV8Value::CreateInt(5);
    } else if(name == "execute2") {
      g_V8TestV8HandlerExecute2Called = true;
      
      // check the result of calling the "execute" function
      ASSERT_EQ((size_t)1, arguments.size());
      ASSERT_TRUE(arguments[0]->IsInt());
      ASSERT_EQ(5, arguments[0]->GetIntValue());
    }
  }

  bool binding_test_;
};

class V8TestHandler : public TestHandler
{
public:
  V8TestHandler(bool bindingTest) { binding_test_ = bindingTest; }

  virtual void RunTest()
  {
    std::string object;
    if(binding_test_) {
      // binding uses the window object
      object = "window.test";
    } else {
      // extension uses a global object
      object = "test";
    }

    std::stringstream testHtml;
    testHtml <<
      "<html><body>"
      "<script language=\"JavaScript\">"
      "function func(a,b,c,d) { return a+b+(c?1:0)+parseFloat(d); }"
      "function func2(a,b) { throw('My Exception'); }"
      << object << ".execute2("
      "  " << object << ".execute(5, 6.543, true, \"test string\","
      "    [7, 5.432, false, \"another string\"],"
      "    {arg0:2, arg1:3.433, arg2:true, arg3:\"some string\"}, func, func2)"
      ");"
      "</script>"
      "</body></html>";
	
    AddResource("http://tests/run.html", testHtml.str(), "text/html");
    CreateBrowser("http://tests/run.html");
  }

  virtual RetVal HandleLoadEnd(CefRefPtr<CefBrowser> browser,
                               CefRefPtr<CefFrame> frame,
                               bool isMainContent,
                               int httpStatusCode)
  {
    if(!browser->IsPopup() && !frame.get())
      DestroyTest();
    return RV_CONTINUE;
  }

  virtual RetVal HandleJSBinding(CefRefPtr<CefBrowser> browser,
                                 CefRefPtr<CefFrame> frame,
                                 CefRefPtr<CefV8Value> object)
  {
    if(binding_test_) {
      TestHandleJSBinding(browser, frame, object);
      return RV_HANDLED;
    }
    return RV_CONTINUE;
  }

  void TestHandleJSBinding(CefRefPtr<CefBrowser> browser,
                           CefRefPtr<CefFrame> frame,
                           CefRefPtr<CefV8Value> object)
  {
    // Create the new V8 object
    CefRefPtr<CefV8Value> testObj = CefV8Value::CreateObject(NULL);
    ASSERT_TRUE(testObj.get() != NULL);
    ASSERT_TRUE(object->SetValue("test", testObj));

    // Create an instance of V8ExecuteV8Handler
    CefRefPtr<CefV8Handler> testHandler(new V8TestV8Handler(true));
    ASSERT_TRUE(testHandler.get() != NULL);

    // Add the functions
    CefRefPtr<CefV8Value> testFunc;
    testFunc = CefV8Value::CreateFunction("execute", testHandler);
    ASSERT_TRUE(testFunc.get() != NULL);
    ASSERT_TRUE(testObj->SetValue("execute", testFunc));
    testFunc = CefV8Value::CreateFunction("execute2", testHandler);
    ASSERT_TRUE(testFunc.get() != NULL);
    ASSERT_TRUE(testObj->SetValue("execute2", testFunc));

    // Add the values
    ASSERT_TRUE(testObj->SetValue("intVal",
        CefV8Value::CreateInt(12)));
    ASSERT_TRUE(testObj->SetValue("doubleVal",
        CefV8Value::CreateDouble(5.432)));
    ASSERT_TRUE(testObj->SetValue("boolVal",
        CefV8Value::CreateBool(true)));
    ASSERT_TRUE(testObj->SetValue("stringVal",
        CefV8Value::CreateString("the string")));

    CefRefPtr<CefV8Value> testArray(CefV8Value::CreateArray());
    ASSERT_TRUE(testArray.get() != NULL);
    ASSERT_TRUE(testObj->SetValue("arrayVal", testArray));
    ASSERT_TRUE(testArray->SetValue(0, CefV8Value::CreateInt(4)));
    ASSERT_TRUE(testArray->SetValue(1, CefV8Value::CreateDouble(120.43)));
    ASSERT_TRUE(testArray->SetValue(2, CefV8Value::CreateBool(true)));
    ASSERT_TRUE(testArray->SetValue(3, CefV8Value::CreateString("a string")));
  }

  bool binding_test_;
};

// Verify window binding
TEST(V8Test, Binding)
{
  g_V8TestV8HandlerExecuteCalled = false;
  g_V8TestV8HandlerExecute2Called = false;

  CefRefPtr<V8TestHandler> handler = new V8TestHandler(true);
  handler->ExecuteTest();

  ASSERT_TRUE(g_V8TestV8HandlerExecuteCalled);
  ASSERT_TRUE(g_V8TestV8HandlerExecute2Called);
}

// Verify extensions
TEST(V8Test, Extension)
{
  g_V8TestV8HandlerExecuteCalled = false;
  g_V8TestV8HandlerExecute2Called = false;

  std::string extensionCode =
    "var test;"
    "if (!test)"
    "  test = {};"
    "(function() {"
    "  test.execute = function(a,b,c,d,e,f,g,h) {"
    "    native function execute();"
    "    return execute(a,b,c,d,e,f,g,h);"
    "  };"
    "  test.execute2 = function(a) {"
    "    native function execute2();"
    "    return execute2(a);"
    "  };"
    "})();";
  CefRegisterExtension("v8/test", extensionCode, new V8TestV8Handler(false));

  CefRefPtr<V8TestHandler> handler = new V8TestHandler(false);
  handler->ExecuteTest();

  ASSERT_TRUE(g_V8TestV8HandlerExecuteCalled);
  ASSERT_TRUE(g_V8TestV8HandlerExecute2Called);
}

// Using a delegate so that the code below can remain inline.
class CefV8HandlerDelegate
{
public:
  virtual bool Execute(const CefString& name,
                       CefRefPtr<CefV8Value> object,
                       const CefV8ValueList& arguments,
                       CefRefPtr<CefV8Value>& retval,
                       CefString& exception) = 0;
};

// Verify context works to allow async v8 callbacks
TEST(V8Test, Context)
{
  class DelegatingV8Handler : public CefThreadSafeBase<CefV8Handler>
  {
  public:
    DelegatingV8Handler(CefV8HandlerDelegate *delegate): 
        delegate_(delegate) { }
    
    ~DelegatingV8Handler()
    {
    }

    bool Execute(const CefString& name, 
                 CefRefPtr<CefV8Value> object,
                 const CefV8ValueList& arguments,
                 CefRefPtr<CefV8Value>& retval,
                 CefString& exception)
    {
      return delegate_->Execute(name, object, arguments, retval, exception);
    }

  private:
    CefV8HandlerDelegate *delegate_;
  };

  class TestContextHandler: public TestHandler, public CefV8HandlerDelegate
  {
  public:
    TestContextHandler() {}
  
    virtual void RunTest()
    {
      // Test Flow: 
      // load main.html.
      // 1. main.html calls hello("main", callIFrame) in the execute handler.
      //    The excute handler checks that "main" was called and saves 
      //    the callIFrame function, context, and receiver object.
      // 2. iframe.html calls hello("iframe") in the execute handler.
      //    The execute handler checks that "iframe" was called. if both main 
      //    and iframe were called, it calls CallIFrame()
      // 3. CallIFrame calls "callIFrame" in main.html
      // 4. which calls iframe.html "calledFromMain()".
      // 5. which calls "fromIFrame()" in execute handler.
      //    The execute handler checks that the entered and current urls are
      //    what we expect: "main.html" and "iframe.html", respectively 
      // 6. It then posts a task to call AsyncTestContext
      //      you can validate the entered and current context are still the 
      //      same here, but it is not checked by this test case.
      // 7. AsyncTestContext tests to make sure that no context is set at 
      //    this point and loads "begin.html"
      // 8. begin.html calls "begin(func1, func2)" in the execute handler
      //    The execute handler posts a tasks to call both of those functions 
      //    when no context is defined. Both should work with the specified 
      //    context. AsyncTestException should run first, followed by 
      //    AsyncTestNavigate() which calls the func2 to do a document.location 
      //    based loading of "end.html".
      // 9. end.html calls "end()" in the execute handler.
      //    which concludes the test.

      std::stringstream mainHtml;
      mainHtml <<
        "<html><body>"
        "<h1>Hello From Main Frame</h1>"
        "<script language=\"JavaScript\">"
        "hello(\"main\", callIFrame);"
        "function callIFrame() {"
        " var iframe = document.getElementById('iframe');"
        " iframe.contentWindow.calledFromMain();"
        "}"
        "</script>"
        "<iframe id=\"iframe\" src=\"http://tests/iframe.html\""
        " width=\"300\" height=\"300\">"
        "</iframe>"
        "</body></html>";

      AddResource("http://tests/main.html", mainHtml.str(), "text/html");

      std::stringstream iframeHtml;
      iframeHtml <<
        "<html><body>"
        "<h1>Hello From IFRAME</h1>"
        "<script language=\"JavaScript\">"
        "hello(\"iframe\");"
        "function calledFromMain() { fromIFrame(); }"
        "</script>"
        "</body></html>";

      AddResource("http://tests/iframe.html", iframeHtml.str(), "text/html");

      std::stringstream beginHtml;
      beginHtml <<
        "<html><body>"
        "<h1>V8 Context Test</h1>"
        "<script language=\"JavaScript\">"
        "function TestException() { throw('My Exception'); }"
        "function TestNavigate(a) { document.location = a; }"
        "begin(TestException, TestNavigate);"
        "</script>"
        "</body></html>";
  	
      AddResource("http://tests/begin.html", beginHtml.str(), "text/html");

      std::stringstream endHtml;
      endHtml <<
        "<html><body>"
        "<h1>Navigation Succeeded!</h1>"
        "<script language=\"JavaScript\">"
        "end();"
        "</script>"
        "</body></html>";

      AddResource("http://tests/end.html", endHtml.str(), "text/html");

      CreateBrowser("http://tests/main.html");
    }
  
    virtual RetVal HandleLoadEnd(CefRefPtr<CefBrowser> browser,
                                 CefRefPtr<CefFrame> frame,
                                 bool isMainContent,
                                 int httpStatusCode)
    {
      return RV_CONTINUE;
    }

    virtual RetVal HandleJSBinding(CefRefPtr<CefBrowser> browser,
                                   CefRefPtr<CefFrame> frame,
                                   CefRefPtr<CefV8Value> object)
    {
      CefRefPtr<CefV8Context> cc = CefV8Context::GetCurrentContext();
      CefRefPtr<CefBrowser> currentBrowser = cc->GetBrowser();
      CefRefPtr<CefFrame> currentFrame = cc->GetFrame();
      CefString currentURL = currentFrame->GetURL();

      CefRefPtr<CefV8Context> ec = CefV8Context::GetEnteredContext();
      CefRefPtr<CefBrowser> enteredBrowser = ec->GetBrowser();
      CefRefPtr<CefFrame> enteredFrame = ec->GetFrame();
      CefString enteredURL = enteredFrame->GetURL();

      CefRefPtr<CefV8Handler> funcHandler(new DelegatingV8Handler(this));
      CefRefPtr<CefV8Value> helloFunc = 
        CefV8Value::CreateFunction("hello", funcHandler);
      object->SetValue("hello", helloFunc);

      CefRefPtr<CefV8Value> fromIFrameFunc = 
        CefV8Value::CreateFunction("fromIFrame", funcHandler);
      object->SetValue("fromIFrame", fromIFrameFunc);

      CefRefPtr<CefV8Value> goFunc = 
        CefV8Value::CreateFunction("begin", funcHandler);
      object->SetValue("begin", goFunc);

      CefRefPtr<CefV8Value> doneFunc = 
        CefV8Value::CreateFunction("end", funcHandler);
      object->SetValue("end", doneFunc);

      return RV_HANDLED;
    }

    void CallIFrame()
    {
      CefV8ValueList args;
      CefRefPtr<CefV8Value> rv;
      CefString exception;
      CefRefPtr<CefV8Value> empty;
      ASSERT_TRUE(funcIFrame_->ExecuteFunctionWithContext(
          contextIFrame_, empty, args, rv, exception));
    }

    void AsyncTestContext(CefRefPtr<CefV8Context> ec, 
                          CefRefPtr<CefV8Context> cc)
    {
      // we should not be in a context in this call.
      CefRefPtr<CefV8Context> noContext = CefV8Context::GetCurrentContext();
      if (!noContext.get())
        got_no_context_.yes();

      CefRefPtr<CefBrowser> enteredBrowser = ec->GetBrowser();
      CefRefPtr<CefFrame> enteredFrame = ec->GetFrame();
      CefString enteredURL = enteredFrame->GetURL();
      CefString enteredName = enteredFrame->GetName();
      CefRefPtr<CefFrame> enteredMainFrame = enteredBrowser->GetMainFrame();
      CefString enteredMainURL = enteredMainFrame->GetURL();
      CefString enteredMainName = enteredMainFrame->GetName();

      CefRefPtr<CefBrowser> currentBrowser = cc->GetBrowser();
      CefRefPtr<CefFrame> currentFrame = cc->GetFrame();
      CefString currentURL = currentFrame->GetURL();
      CefString currentName = currentFrame->GetName();
      CefRefPtr<CefFrame> currentMainFrame = currentBrowser->GetMainFrame();
      CefString currentMainURL = currentMainFrame->GetURL();
      CefString currentMainName = currentMainFrame->GetName();

      CefRefPtr<CefBrowser> copyFromMainFrame = 
          currentMainFrame->GetBrowser();

      currentMainFrame->LoadURL("http://tests/begin.html");
    }

    void AsyncTestException(
      CefRefPtr<CefV8Context> context,
      CefRefPtr<CefV8Value> func)
    {
      CefV8ValueList args;
      CefRefPtr<CefV8Value> rv;
      CefString exception;
      CefRefPtr<CefV8Value> empty;
      ASSERT_TRUE(func->ExecuteFunctionWithContext(
          context, empty, args, rv, exception));
      if(exception == "Uncaught My Exception")
        got_exception_.yes();
    }

    void AsyncTestNavigation(
      CefRefPtr<CefV8Context> context,
      CefRefPtr<CefV8Value> func)
    {
      CefV8ValueList args;
      args.push_back(CefV8Value::CreateString("http://tests/end.html"));
      CefRefPtr<CefV8Value> rv;
      CefString exception;
      CefRefPtr<CefV8Value> global = context->GetGlobal();
      ASSERT_TRUE(func->ExecuteFunctionWithContext(
          context, global, args, rv, exception));
      if(exception.empty())
        got_navigation_.yes();
    }

    bool Execute(const CefString& name, 
                 CefRefPtr<CefV8Value> object,
                 const CefV8ValueList& arguments,
                 CefRefPtr<CefV8Value>& retval,
                 CefString& exception)
    {
      CefRefPtr<CefV8Context> cc = CefV8Context::GetCurrentContext();
      CefRefPtr<CefV8Context> ec = CefV8Context::GetEnteredContext();

      CefRefPtr<CefBrowser> enteredBrowser = ec->GetBrowser();
      CefRefPtr<CefFrame> enteredFrame = ec->GetFrame();
      CefString enteredURL = enteredFrame->GetURL();
      CefString enteredName = enteredFrame->GetName();
      CefRefPtr<CefFrame> enteredMainFrame = enteredBrowser->GetMainFrame();
      CefString enteredMainURL = enteredMainFrame->GetURL();
      CefString enteredMainName = enteredMainFrame->GetName();

      CefRefPtr<CefBrowser> currentBrowser = cc->GetBrowser();
      CefRefPtr<CefFrame> currentFrame = cc->GetFrame();
      CefString currentURL = currentFrame->GetURL();
      CefString currentName = currentFrame->GetName();
      CefRefPtr<CefFrame> currentMainFrame = currentBrowser->GetMainFrame();
      CefString currentMainURL = currentMainFrame->GetURL();
      CefString currentMainName = currentMainFrame->GetName();

      if (name == "hello") {
        if(arguments.size() == 2 && arguments[0]->IsString() &&
            arguments[1]->IsFunction()) {
          CefString msg = arguments[0]->GetStringValue();
          if(msg == "main") {
            got_hello_main_.yes();
            contextIFrame_ = cc;
            funcIFrame_ = arguments[1];
          }
        } else if(arguments.size() == 1 && arguments[0]->IsString()) {
          CefString msg = arguments[0]->GetStringValue();
          if(msg == "iframe")
            got_hello_iframe_.yes();
        }
        else
          return false;

        if(got_hello_main_ && got_hello_iframe_ && funcIFrame_->IsFunction())
        {
          // NB: At this point, enteredURL == http://tests/iframe.html which is
          // expected since the iframe made the call on its own. The unexpected
          // behavior is that in the call to fromIFrame (below) the enteredURL
          // == http://tests/main.html even though the iframe.html context was 
          // entered first.
          //  -- Perhaps WebKit does something other than look at the bottom 
          //     of stack for the entered context.
          if(enteredURL == "http://tests/iframe.html")
            got_iframe_as_entered_url_.yes();
          CallIFrame();
        }
        return true;
      } else if(name == "fromIFrame") {
        if(enteredURL == "http://tests/main.html")
          got_correct_entered_url_.yes();
        if(currentURL == "http://tests/iframe.html")
          got_correct_current_url_.yes();
        CefPostTask(TID_UI, NewCefRunnableMethod(this, 
            &TestContextHandler::AsyncTestContext, ec, cc));
        return true;
      } else if(name == "begin") {
        if(arguments.size() == 2 && arguments[0]->IsFunction() &&
            arguments[1]->IsFunction()) {
          CefRefPtr<CefV8Value> funcException = arguments[0];
          CefRefPtr<CefV8Value> funcNavigate  = arguments[1];
          CefPostTask(TID_UI, NewCefRunnableMethod(this, 
              &TestContextHandler::AsyncTestException, 
              cc, funcException));
          CefPostTask(TID_UI, NewCefRunnableMethod(this, 
              &TestContextHandler::AsyncTestNavigation, 
              cc, funcNavigate));
          return true;
        }
      } else if (name == "end") {
        got_testcomplete_.yes();
        DestroyTest();
        return true;
      }
      return false;
    }

    // This function we will be called later to make it call into the
    // IFRAME, which then calls "fromIFrame" so that we can check the 
    // entered vs current contexts are working as expected.
    CefRefPtr<CefV8Context> contextIFrame_;
    CefRefPtr<CefV8Value> funcIFrame_;

    TrackCallback got_hello_main_;
    TrackCallback got_hello_iframe_;
    TrackCallback got_correct_entered_url_;
    TrackCallback got_correct_current_url_;
    TrackCallback got_iframe_as_entered_url_;
    TrackCallback got_no_context_;
    TrackCallback got_exception_;
    TrackCallback got_navigation_;
    TrackCallback got_testcomplete_;
  };

  CefRefPtr<TestContextHandler> handler = new TestContextHandler();
  handler->ExecuteTest();

  EXPECT_TRUE(handler->got_hello_main_);
  EXPECT_TRUE(handler->got_hello_iframe_);
  EXPECT_TRUE(handler->got_no_context_);
  EXPECT_TRUE(handler->got_iframe_as_entered_url_);
  EXPECT_TRUE(handler->got_correct_entered_url_);
  EXPECT_TRUE(handler->got_correct_current_url_);
  EXPECT_TRUE(handler->got_exception_);
  EXPECT_TRUE(handler->got_navigation_);
  EXPECT_TRUE(handler->got_testcomplete_);
}