Simplify/Cleanup MediaClient

content/renderer/media/render_media_client_unittest.cc

-// Copyright 2014 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 <string>
-#include <vector>
-
-#include "base/test/simple_test_tick_clock.h"
-#include "content/public/renderer/content_renderer_client.h"
-#include "content/renderer/media/render_media_client.h"
-#include "content/test/test_content_client.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-#include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
-
-namespace content {
-
-namespace {
-
-class TestKeySystemProperties : public media::KeySystemProperties {
- public:
-  TestKeySystemProperties(const std::string& key_system_name)
-      : key_system_name_(key_system_name) {}
-
-  std::string GetKeySystemName() const override { return key_system_name_; }
-  bool IsSupportedInitDataType(
-      media::EmeInitDataType init_data_type) const override {
-    return false;
-  }
-  media::SupportedCodecs GetSupportedCodecs() const override {
-    return media::EME_CODEC_NONE;
-  }
-  media::EmeConfigRule GetRobustnessConfigRule(
-      media::EmeMediaType media_type,
-      const std::string& requested_robustness) const override {
-    return requested_robustness.empty() ? media::EmeConfigRule::SUPPORTED
-                                        : media::EmeConfigRule::NOT_SUPPORTED;
-  }
-  media::EmeSessionTypeSupport GetPersistentLicenseSessionSupport()
-      const override {
-    return media::EmeSessionTypeSupport::NOT_SUPPORTED;
-  }
-  media::EmeSessionTypeSupport GetPersistentReleaseMessageSessionSupport()
-      const override {
-    return media::EmeSessionTypeSupport::NOT_SUPPORTED;
-  }
-  media::EmeFeatureSupport GetPersistentStateSupport() const override {
-    return media::EmeFeatureSupport::NOT_SUPPORTED;
-  }
-  media::EmeFeatureSupport GetDistinctiveIdentifierSupport() const override {
-    return media::EmeFeatureSupport::NOT_SUPPORTED;
-  }
-
- private:
-  const std::string key_system_name_;
-};
-
-class TestContentRendererClient : public ContentRendererClient {
- public:
-  TestContentRendererClient() : is_extra_key_system_enabled_(false) {}
-
-  // ContentRendererClient implementation.
-  void AddSupportedKeySystems(
-      std::vector<std::unique_ptr<media::KeySystemProperties>>*
-          key_systems_properties) override {
-    key_systems_properties->emplace_back(
-        new TestKeySystemProperties("test.keysystem"));
-
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
-    if (is_extra_key_system_enabled_) {
-      key_systems_properties->emplace_back(
-          new TestKeySystemProperties(kWidevineKeySystem));
-    }
-#endif
-  }
-
-  void EnableExtraKeySystem() { is_extra_key_system_enabled_ = true; }
-
- private:
-  // Whether a platform-specific extra key system is "supported" by |this|.
-  bool is_extra_key_system_enabled_;
-};
-
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
-bool ContainsWidevine(
-    const std::vector<std::unique_ptr<media::KeySystemProperties>>&
-        key_systems_properties) {
-  for (const auto& key_system_properties : key_systems_properties) {
-    if (key_system_properties->GetKeySystemName() == kWidevineKeySystem)
-      return true;
-  }
-  return false;
-}
-#endif
-
-}  // namespace
-
-class RenderMediaClientTest : public testing::Test {
- protected:
-  RenderMediaClientTest()
-      : render_media_client_(RenderMediaClient::GetInstance()) {
-    SetContentClient(&test_content_client_);
-    SetRendererClientForTesting(&test_content_renderer_client_);
-  }
-
-  void EnableExtraKeySystem() {
-    test_content_renderer_client_.EnableExtraKeySystem();
-  }
-
-  RenderMediaClient* render_media_client_;
-
- private:
-  typedef base::hash_map<std::string, std::string> KeySystemNameForUMAMap;
-
-  TestContentClient test_content_client_;
-  TestContentRendererClient test_content_renderer_client_;
-  KeySystemNameForUMAMap key_system_name_for_uma_map_;
-};
-
-TEST_F(RenderMediaClientTest, KeySystemNameForUMA) {
-  std::vector<media::KeySystemInfoForUMA> key_systems_info_for_uma;
-  render_media_client_->AddKeySystemsInfoForUMA(&key_systems_info_for_uma);
-
-  std::string widevine_uma_name;
-  std::string clearkey_uma_name;
-  for (const media::KeySystemInfoForUMA& info : key_systems_info_for_uma) {
-    if (info.key_system == "com.widevine.alpha")
-      widevine_uma_name = info.key_system_name_for_uma;
-    if (info.key_system == "org.w3.clearkey")
-      clearkey_uma_name = info.key_system_name_for_uma;
-  }
-
-#if defined(WIDEVINE_CDM_AVAILABLE)
-  EXPECT_EQ("Widevine", widevine_uma_name);
-#else
-  EXPECT_TRUE(widevine_uma_name.empty());
-#endif
-
-  EXPECT_TRUE(clearkey_uma_name.empty()) << "Clear Key is added by media/ and "
-                                            "should not be added by the "
-                                            "MediaClient.";
-}
-
-TEST_F(RenderMediaClientTest, IsKeySystemsUpdateNeeded) {
-  base::SimpleTestTickClock* tick_clock = new base::SimpleTestTickClock();
-  render_media_client_->SetTickClockForTesting(
-      std::unique_ptr<base::TickClock>(tick_clock));
-
-  // IsKeySystemsUpdateNeeded() always returns true after construction.
-  EXPECT_TRUE(render_media_client_->IsKeySystemsUpdateNeeded());
-
-  std::vector<std::unique_ptr<media::KeySystemProperties>>
-      key_systems_properties;
-  render_media_client_->AddSupportedKeySystems(&key_systems_properties);
-
-  // No update needed immediately after AddSupportedKeySystems() call.
-  EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
-
-#if defined(WIDEVINE_CDM_AVAILABLE) && defined(WIDEVINE_CDM_IS_COMPONENT)
-  // Widevine not supported because extra key system isn't enabled.
-  EXPECT_FALSE(ContainsWidevine(key_systems_properties));
-
-  // This is timing related. The update interval for Widevine is 1000 ms.
-  EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
-  tick_clock->Advance(base::TimeDelta::FromMilliseconds(990));
-  EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
-  tick_clock->Advance(base::TimeDelta::FromMilliseconds(10));
-  EXPECT_TRUE(render_media_client_->IsKeySystemsUpdateNeeded());
-
-  EnableExtraKeySystem();
-
-  key_systems_properties.clear();
-  render_media_client_->AddSupportedKeySystems(&key_systems_properties);
-  EXPECT_TRUE(ContainsWidevine(key_systems_properties));
-
-  EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
-  tick_clock->Advance(base::TimeDelta::FromMilliseconds(1000));
-  EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
-  tick_clock->Advance(base::TimeDelta::FromMilliseconds(1000));
-  EXPECT_FALSE(render_media_client_->IsKeySystemsUpdateNeeded());
-#endif
-}
-
-}  // namespace content