| // Copyright 2017 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 |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/base_paths.h" |
| #include "base/file_path.h" |
| #include "base/file_util.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/path_service.h" |
| #include "cobalt/accessibility/screen_reader.h" |
| #include "cobalt/accessibility/text_alternative.h" |
| #include "cobalt/accessibility/tts_engine.h" |
| #include "cobalt/browser/web_module.h" |
| #include "cobalt/dom/element.h" |
| #include "cobalt/test/document_loader.h" |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| using ::testing::_; |
| |
| namespace cobalt { |
| namespace accessibility { |
| namespace { |
| struct TestInfo { |
| TestInfo(const std::string& html_file_name, |
| const std::string& expected_result, |
| bool screen_reader_enabled) |
| : html_file_name(html_file_name), |
| expected_result(expected_result), |
| screen_reader_enabled(screen_reader_enabled) {} |
| std::string html_file_name; |
| std::string expected_result; |
| bool screen_reader_enabled; |
| }; |
| |
| // Enumerate the *.html files in the accessibility_test directory and build |
| // a list of input .html files and expected results. |
| std::vector<TestInfo> EnumerateTests(bool screen_reader_enabled, |
| const std::string& subdir) { |
| std::vector<TestInfo> infos; |
| FilePath root_directory; |
| PathService::Get(base::DIR_SOURCE_ROOT, &root_directory); |
| root_directory = root_directory.Append("cobalt") |
| .Append("accessibility") |
| .Append("testdata") |
| .Append(subdir); |
| file_util::FileEnumerator enumerator(root_directory, false, |
| file_util::FileEnumerator::FILES); |
| for (FilePath html_file = enumerator.Next(); !html_file.empty(); |
| html_file = enumerator.Next()) { |
| if (html_file.Extension() == ".html") { |
| FilePath expected_results_file = html_file.ReplaceExtension(".expected"); |
| std::string results; |
| if (!file_util::ReadFileToString(expected_results_file, &results)) { |
| DLOG(WARNING) << "Failed to read results from file: " |
| << expected_results_file.value(); |
| continue; |
| } |
| TrimWhitespaceASCII(results, TRIM_ALL, &results); |
| infos.push_back(TestInfo(html_file.BaseName().value(), |
| results, |
| screen_reader_enabled)); |
| } |
| } |
| return infos; |
| } |
| |
| class MockTTSEngine : public TTSEngine { |
| public: |
| MOCK_METHOD1(Speak, void(const std::string&)); |
| MOCK_METHOD1(SpeakNow, void(const std::string&)); |
| }; |
| |
| class TextAlternativeTest : public ::testing::TestWithParam<TestInfo> { |
| protected: |
| test::DocumentLoader document_loader_; |
| }; |
| |
| class LiveRegionMutationTest : public ::testing::TestWithParam<TestInfo> { |
| public: |
| LiveRegionMutationTest() : quit_event_(true, false) {} |
| void OnError(const GURL&, const std::string& error) { |
| DLOG(ERROR) << error; |
| Quit(); |
| } |
| void Quit() { |
| quit_event_.Signal(); |
| screen_reader_.reset(); |
| } |
| void OnClose(base::TimeDelta close_time) { |
| UNREFERENCED_PARAMETER(close_time); |
| Quit(); |
| } |
| |
| scoped_refptr<script::Wrappable> CreateWindowAttribute( |
| const scoped_refptr<dom::Window>& window, |
| dom::MutationObserverTaskManager* mutation_observer_task_manager, |
| script::GlobalEnvironment* global_environment) { |
| UNREFERENCED_PARAMETER(global_environment); |
| screen_reader_.reset(new accessibility::ScreenReader( |
| window->document(), &tts_engine_, mutation_observer_task_manager)); |
| screen_reader_->set_enabled(GetParam().screen_reader_enabled); |
| EXPECT_EQ(GetParam().screen_reader_enabled, screen_reader_->enabled()); |
| |
| return NULL; |
| } |
| |
| static void OnRenderTreeProducedStub( |
| const browser::WebModule::LayoutResults&) {} |
| |
| protected: |
| MockTTSEngine tts_engine_; |
| base::WaitableEvent quit_event_; |
| scoped_ptr<accessibility::ScreenReader> screen_reader_; |
| }; |
| } // namespace |
| |
| TEST_P(TextAlternativeTest, TextAlternativeTest) { |
| GURL url( |
| std::string("file:///cobalt/accessibility/testdata/text_alternative/" + |
| GetParam().html_file_name)); |
| document_loader_.Load(url); |
| ASSERT_TRUE(document_loader_.document()); |
| scoped_refptr<dom::Element> element = |
| document_loader_.document()->GetElementById("element_to_test"); |
| ASSERT_TRUE(element); |
| EXPECT_EQ(GetParam().expected_result, ComputeTextAlternative(element)); |
| } |
| |
| TEST_P(LiveRegionMutationTest, LiveRegionMutationTest) { |
| GURL url(std::string("file:///cobalt/accessibility/testdata/live_region/" + |
| GetParam().html_file_name)); |
| const math::Size kDefaultViewportSize(1280, 720); |
| const float kDefaultVideoPixelRatio = 1.0f; |
| const float kRefreshRate = 60.0f; |
| |
| network::NetworkModule network_module((network::NetworkModule::Options())); |
| render_tree::ResourceProviderStub resource_provider; |
| |
| // 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.injected_window_attributes["test"] = base::Bind( |
| &LiveRegionMutationTest::CreateWindowAttribute, base::Unretained(this)); |
| |
| // Set expected result from mutation. |
| std::string expected_speech = GetParam().expected_result; |
| if (expected_speech.empty() || !GetParam().screen_reader_enabled) { |
| EXPECT_CALL(tts_engine_, Speak(_)).Times(0); |
| } else { |
| EXPECT_CALL(tts_engine_, Speak(expected_speech)); |
| } |
| |
| // Create the webmodule and let it run. |
| DLOG(INFO) << url.spec(); |
| browser::WebModule web_module( |
| url, base::kApplicationStateStarted, |
| base::Bind(&LiveRegionMutationTest::OnRenderTreeProducedStub), |
| base::Bind(&LiveRegionMutationTest::OnError, base::Unretained(this)), |
| base::Bind(&LiveRegionMutationTest::OnClose, base::Unretained(this)), |
| base::Closure(), /* window_minimize_callback */ |
| NULL /* can_play_type_handler */, NULL /* web_media_player_factory */, |
| &network_module, kDefaultViewportSize, kDefaultVideoPixelRatio, |
| &resource_provider, kRefreshRate, web_module_options); |
| |
| // Wait for the test to quit. |
| quit_event_.Wait(); |
| } |
| |
| INSTANTIATE_TEST_CASE_P( |
| TextAlternativeTest, TextAlternativeTest, |
| ::testing::ValuesIn(EnumerateTests(true, "text_alternative"))); |
| |
| INSTANTIATE_TEST_CASE_P( |
| LiveRegionMutationTestEnabled, LiveRegionMutationTest, |
| ::testing::ValuesIn(EnumerateTests(true, "live_region"))); |
| |
| INSTANTIATE_TEST_CASE_P( |
| LiveRegionMutationTestDisabled, LiveRegionMutationTest, |
| ::testing::ValuesIn(EnumerateTests(false, "live_region"))); |
| } // namespace accessibility |
| } // namespace cobalt |