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// Copyright 2015 Google Inc. All Rights Reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#include <ostream>
#include <sstream>
#include <vector>
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/json/json_reader.h"
#include "base/message_loop.h"
#include "base/run_loop.h"
#include "base/string_util.h"
#include "base/values.h"
#include "cobalt/browser/web_module.h"
#include "cobalt/dom/csp_delegate_factory.h"
#include "cobalt/layout_tests/test_utils.h"
#include "cobalt/layout_tests/web_platform_test_parser.h"
#include "cobalt/math/size.h"
#include "cobalt/media/media_module.h"
#include "cobalt/network/network_module.h"
#include "cobalt/render_tree/resource_provider_stub.h"
#include "googleurl/src/gurl.h"
#include "starboard/window.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cobalt {
namespace layout_tests {
namespace {
// A CspDelegate that behaves more like a "standard" one. i.e. it
// is permissive by default. This is for testing our compliance
// with the web-platform-test suite.
class CspDelegatePermissive : public dom::CspDelegateSecure {
scoped_ptr<dom::CspViolationReporter> violation_reporter, const GURL& url,
csp::CSPHeaderPolicy require_csp,
const base::Closure& policy_changed_callback)
: dom::CspDelegateSecure(violation_reporter.Pass(), url, require_csp,
policy_changed_callback) {
// Lies, but some checks in our parent require this.
was_header_received_ = true;
static CspDelegate* Create(
scoped_ptr<dom::CspViolationReporter> violation_reporter, const GURL& url,
csp::CSPHeaderPolicy require_csp,
const base::Closure& policy_changed_callback,
int insecure_allowed_token) {
return new CspDelegatePermissive(violation_reporter.Pass(), url,
require_csp, policy_changed_callback);
bool OnReceiveHeaders(const csp::ResponseHeaders& headers) override {
if (!policy_changed_callback_.is_null()) {
// |true| to allow the document to continue loading.
return true;
// Match the enums from testharness.js.
enum TestStatus {
kPass = 0,
std::string TestStatusToString(int status) {
switch (status) {
case kPass:
return "PASS";
case kFail:
return "FAIL";
case kTimeout:
return "TIMEOUT";
case kNotrun:
return "NOTRUN";
return "FAIL";
struct TestResult {
std::string name;
int status;
std::string message;
std::string stack;
const char* kLogSuppressions[] = {
"<link> has unsupported rel value: help.",
"<link> has unsupported rel value: author.",
"synchronous XHR is not supported",
void Quit(base::RunLoop* run_loop) {
MessageLoop::current()->PostTask(FROM_HERE, run_loop->QuitClosure());
// Called when layout completes and results have been produced. We use this
// signal to stop the WebModule's message loop since our work is done after a
// layout has been performed.
void WebModuleOnRenderTreeProducedCallback(
base::optional<browser::WebModule::LayoutResults>* out_results,
base::RunLoop* run_loop, MessageLoop* message_loop,
const browser::WebModule::LayoutResults& results) {
out_results->emplace(results.render_tree, results.layout_time);
message_loop->PostTask(FROM_HERE, base::Bind(Quit, run_loop));
// This callback, when called, quits a message loop, outputs the error message
// and sets the success flag to false.
void WebModuleErrorCallback(base::RunLoop* run_loop, MessageLoop* message_loop,
const GURL& url, const std::string& error) {
LOG(FATAL) << "Error loading document: " << error << ". URL: " << url;
message_loop->PostTask(FROM_HERE, base::Bind(Quit, run_loop));
std::string RunWebPlatformTest(const GURL& url, bool* got_results) {
LogFilter log_filter;
for (size_t i = 0; i < arraysize(kLogSuppressions); ++i) {
// Setup a message loop for the current thread since we will be constructing
// a WebModule, which requires a message loop to exist for the current
// thread.
MessageLoop message_loop(MessageLoop::TYPE_DEFAULT);
const math::Size kDefaultViewportSize(640, 360);
// Setup WebModule's auxiliary components.
// Network module
network::NetworkModule::Options net_options;
net_options.https_requirement = network::kHTTPSOptional;
network::NetworkModule network_module(net_options);
// Media module
render_tree::ResourceProviderStub resource_provider;
media::MediaModule::Options options;
options.output_resolution_override = kDefaultViewportSize;
scoped_ptr<media::MediaModule> media_module(
media::MediaModule::Create(NULL, &resource_provider, options));
scoped_ptr<media::CanPlayTypeHandler> can_play_type_handler(
dom::kCspEnforcementEnable, CspDelegatePermissive::Create);
// Use test runner mode to allow the content itself to dictate when it is
// ready for layout should be performed. See cobalt/dom/test_runner.h.
browser::WebModule::Options web_module_options;
web_module_options.layout_trigger = layout::LayoutManager::kTestRunnerMode;
// Prepare a slot for our results to be placed when ready.
base::optional<browser::WebModule::LayoutResults> results;
base::RunLoop run_loop;
// Create the WebModule and wait for a layout to occur.
browser::WebModule web_module(
url, base::kApplicationStateStarted,
base::Bind(&WebModuleOnRenderTreeProducedCallback, &results, &run_loop,
base::Bind(&WebModuleErrorCallback, &run_loop, MessageLoop::current()),
browser::WebModule::CloseCallback() /* window_close_callback */,
base::Closure() /* window_minimize_callback */,
can_play_type_handler.get(), media_module.get(), &network_module,
kDefaultViewportSize, 1.f, &resource_provider, 60.0f, web_module_options);
const std::string extract_results =
std::string output = web_module.ExecuteJavascript(
extract_results, base::SourceLocation(__FILE__, __LINE__, 1),
return output;
std::vector<TestResult> ParseResults(const std::string& json_results) {
std::vector<TestResult> test_results;
scoped_ptr<base::Value> root;
base::JSONReader reader(
// Expect that parsing test result succeeded.
EXPECT_EQ(base::JSONReader::JSON_NO_ERROR, reader.error_code());
if (!root) {
// Unparseable JSON, or empty string.
LOG(ERROR) << "Web Platform Tests returned unparseable JSON test result!";
return test_results;
base::DictionaryValue* root_as_dict;
EXPECT_EQ(true, root->GetAsDictionary(&root_as_dict));
base::ListValue* test_list;
EXPECT_EQ(true, root_as_dict->GetList("tests", &test_list));
for (size_t i = 0; i < test_list->GetSize(); ++i) {
TestResult result;
base::DictionaryValue* test_dict;
EXPECT_EQ(true, test_list->GetDictionary(i, &test_dict));
EXPECT_EQ(true, test_dict->GetInteger("status", &result.status));
EXPECT_EQ(true, test_dict->GetString("name", &;
// These fields may be null.
test_dict->GetString("message", &result.message);
test_dict->GetString("stack", &result.stack);
return test_results;
::testing::AssertionResult CheckResult(const char* /* expectation_str */,
const char* /* results_str */,
bool should_pass,
const TestResult& result) {
bool test_passed = result.status == WebPlatformTestInfo::kPass;
if (test_passed == should_pass) {
return ::testing::AssertionSuccess();
} else {
std::ostringstream output;
output << std::endl
<< "Test \"" <<
<< "\" status: " << TestStatusToString(result.status);
if (!result.message.empty()) {
output << std::endl << result.message;
if (!result.stack.empty()) {
output << std::endl << result.stack;
WebPlatformTestInfo::State expectation =
should_pass ? WebPlatformTestInfo::kPass : WebPlatformTestInfo::kFail;
return ::testing::AssertionFailure()
<< "Expected: " << TestStatusToString(expectation) << std::endl
<< "Actual: " << TestStatusToString(result.status) << std::endl
<< output.str();
} // namespace
class WebPlatformTest : public ::testing::TestWithParam<WebPlatformTestInfo> {};
TEST_P(WebPlatformTest, Run) {
// Output the name of the current input file so that it is visible in test
// output.
std::string test_server =
if (test_server.empty()) {
FilePath url_path = GetTestInputRootDirectory()
#if defined(COBALT_LINUX) || defined(COBALT_WIN)
// Get corp configuration.
url_path = url_path.Append(FILE_PATH_LITERAL("corp.url"));
// Get lab configuration.
url_path = url_path.Append(FILE_PATH_LITERAL("lab.url"));
file_util::ReadFileToString(url_path, &test_server);
TrimWhitespaceASCII(test_server, TRIM_ALL, &test_server);
GURL test_url = GURL(test_server).Resolve(GetParam().url);
std::cout << "(" << test_url << ")" << std::endl;
bool got_results = false;
std::string json_results = RunWebPlatformTest(test_url, &got_results);
std::vector<TestResult> results = ParseResults(json_results);
bool failed_at_least_once = false;
for (size_t i = 0; i < results.size(); ++i) {
const WebPlatformTestInfo& test_info = GetParam();
const TestResult& test_result = results[i];
bool should_pass = test_info.expectation == WebPlatformTestInfo::kPass;
std::set<std::string>::const_iterator it =
if (it != test_info.exceptions.end()) {
should_pass = !should_pass;
// If expected to fail but current subtest did not fail, wait to report
// the entire test failed after the last subtest passed and none failed.
if (!should_pass && test_result.status == WebPlatformTestInfo::kPass &&
(i != results.size() - 1 || failed_at_least_once)) {
should_pass = true;
} else {
failed_at_least_once = failed_at_least_once ||
test_result.status == WebPlatformTestInfo::kFail;
EXPECT_PRED_FORMAT2(CheckResult, should_pass, test_result);
// Disable on Windows until network stack is implemented.
#if !defined(COBALT_WIN)
// XML Http Request test cases.
xhr, WebPlatformTest,
cobalt_special, WebPlatformTest,
csp, WebPlatformTest,
INSTANTIATE_TEST_CASE_P(cors, WebPlatformTest,
// Temporarily disabled to allow V8 to start testing as the default JavaScript
// engine on linux/android/raspi. In order to get these to work we need to:
// * Decouple our fetch/streams polyfills from our promise polfill.
// * Fix ArrayBuffers (V8 optimizer is still getting tricked by these...)
#if 0
fetch, WebPlatformTest,
::testing::ValuesIn(EnumerateWebPlatformTests("fetch", "'fetch' in this")));
INSTANTIATE_TEST_CASE_P(html, WebPlatformTest,
mediasession, WebPlatformTest,
// Disabled for the same reason as fetch.
#if 0
INSTANTIATE_TEST_CASE_P(streams, WebPlatformTest,
"streams", "'ReadableStream' in this")));
#endif // !defined(COBALT_WIN)
} // namespace layout_tests
} // namespace cobalt