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// Copyright (c) 2011 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 "chrome/browser/extensions/extension_function_test_utils.h"
#include <string>
#include "base/file_path.h"
#include "base/json/json_reader.h"
#include "base/values.h"
#include "chrome/browser/extensions/extension_function.h"
#include "chrome/browser/extensions/extension_function_dispatcher.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/test/base/ui_test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class TestFunctionDispatcherDelegate
: public ExtensionFunctionDispatcher::Delegate {
public:
explicit TestFunctionDispatcherDelegate(Browser* browser) :
browser_(browser) {}
virtual ~TestFunctionDispatcherDelegate() {}
private:
virtual Browser* GetBrowser() OVERRIDE {
return browser_;
}
virtual gfx::NativeView GetNativeViewOfHost() OVERRIDE {
return NULL;
}
virtual TabContents* GetAssociatedTabContents() const OVERRIDE {
return NULL;
}
Browser* browser_;
};
} // namespace
namespace extension_function_test_utils {
base::Value* ParseJSON(const std::string& data) {
const bool kAllowTrailingComma = false;
return base::JSONReader::Read(data, kAllowTrailingComma);
}
base::ListValue* ParseList(const std::string& data) {
scoped_ptr<base::Value> result(ParseJSON(data));
if (result.get() && result->IsType(base::Value::TYPE_LIST))
return static_cast<base::ListValue*>(result.release());
else
return NULL;
}
base::DictionaryValue* ParseDictionary(
const std::string& data) {
scoped_ptr<base::Value> result(ParseJSON(data));
if (result.get() && result->IsType(base::Value::TYPE_DICTIONARY))
return static_cast<base::DictionaryValue*>(result.release());
else
return NULL;
}
bool GetBoolean(base::DictionaryValue* val, const std::string& key) {
bool result = false;
if (!val->GetBoolean(key, &result))
ADD_FAILURE() << key << " does not exist or is not a boolean.";
return result;
}
int GetInteger(base::DictionaryValue* val, const std::string& key) {
int result = 0;
if (!val->GetInteger(key, &result))
ADD_FAILURE() << key << " does not exist or is not an integer.";
return result;
}
std::string GetString(base::DictionaryValue* val, const std::string& key) {
std::string result;
if (!val->GetString(key, &result))
ADD_FAILURE() << key << " does not exist or is not a string.";
return result;
}
base::DictionaryValue* ToDictionary(base::Value* val) {
EXPECT_TRUE(val);
EXPECT_EQ(base::Value::TYPE_DICTIONARY, val->GetType());
return static_cast<base::DictionaryValue*>(val);
}
scoped_refptr<Extension> CreateEmptyExtension() {
std::string error;
const FilePath test_extension_path;
scoped_ptr<base::DictionaryValue> test_extension_value(
ParseDictionary("{\"name\": \"Test\", \"version\": \"1.0\"}"));
scoped_refptr<Extension> extension(Extension::Create(
test_extension_path,
Extension::INTERNAL,
*test_extension_value.get(),
Extension::NO_FLAGS,
&error));
EXPECT_TRUE(error.empty()) << "Could not parse test extension " << error;
return extension;
}
std::string RunFunctionAndReturnError(UIThreadExtensionFunction* function,
const std::string& args,
Browser* browser) {
return RunFunctionAndReturnError(function, args, browser, NONE);
}
std::string RunFunctionAndReturnError(UIThreadExtensionFunction* function,
const std::string& args,
Browser* browser,
RunFunctionFlags flags) {
scoped_refptr<ExtensionFunction> function_owner(function);
RunFunction(function, args, browser, flags);
EXPECT_FALSE(function->GetResultValue()) << "Unexpected function result " <<
function->GetResult();
return function->GetError();
}
base::Value* RunFunctionAndReturnResult(UIThreadExtensionFunction* function,
const std::string& args,
Browser* browser) {
return RunFunctionAndReturnResult(function, args, browser, NONE);
}
base::Value* RunFunctionAndReturnResult(UIThreadExtensionFunction* function,
const std::string& args,
Browser* browser,
RunFunctionFlags flags) {
scoped_refptr<ExtensionFunction> function_owner(function);
RunFunction(function, args, browser, flags);
EXPECT_TRUE(function->GetError().empty()) << "Unexpected error: "
<< function->GetError();
EXPECT_TRUE(function->GetResultValue()) << "No result value found";
return function->GetResultValue()->DeepCopy();
}
// This helps us be able to wait until an AsyncExtensionFunction calls
// SendResponse.
class SendResponseDelegate
: public UIThreadExtensionFunction::DelegateForTests {
public:
SendResponseDelegate() : should_post_quit_(false) {}
virtual ~SendResponseDelegate() {}
void set_should_post_quit(bool should_quit) {
should_post_quit_ = should_quit;
}
bool HasResponse() {
return response_.get() != NULL;
}
bool GetResponse() {
EXPECT_TRUE(HasResponse());
return *response_.get();
}
virtual void OnSendResponse(UIThreadExtensionFunction* function,
bool success) {
ASSERT_FALSE(HasResponse());
response_.reset(new bool);
*response_ = success;
if (should_post_quit_) {
MessageLoopForUI::current()->Quit();
}
}
private:
scoped_ptr<bool> response_;
bool should_post_quit_;
};
bool RunFunction(UIThreadExtensionFunction* function,
const std::string& args,
Browser* browser,
RunFunctionFlags flags) {
SendResponseDelegate response_delegate;
function->set_test_delegate(&response_delegate);
scoped_ptr<base::ListValue> parsed_args(ParseList(args));
EXPECT_TRUE(parsed_args.get()) <<
"Could not parse extension function arguments: " << args;
function->SetArgs(parsed_args.get());
TestFunctionDispatcherDelegate dispatcher_delegate(browser);
ExtensionFunctionDispatcher dispatcher(
browser->profile(), &dispatcher_delegate);
function->set_dispatcher(dispatcher.AsWeakPtr());
function->set_profile(browser->profile());
function->set_include_incognito(flags & INCLUDE_INCOGNITO);
function->Run();
// If the RunImpl of |function| didn't already call SendResponse, run the
// message loop until they do.
if (!response_delegate.HasResponse()) {
response_delegate.set_should_post_quit(true);
ui_test_utils::RunMessageLoop();
}
EXPECT_TRUE(response_delegate.HasResponse());
return response_delegate.GetResponse();
}
} // namespace extension_function_test_utils
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