[Android] Adding content settings provider for notification channels

chrome/browser/notifications/notification_channels_provider_android_unittest.cc

+// Copyright 2017 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/notifications/notification_channels_provider_android.h"
+
+#include "base/memory/ptr_util.h"
+#include "base/values.h"
+#include "components/content_settings/core/browser/content_settings_pref.h"
+#include "components/content_settings/core/common/content_settings_pattern.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+using ::testing::Return;
+
+namespace {
+const char kTestOrigin[] = "https://example.com/";
+}  // namespace
+
+class MockNotificationChannelsBridge
+    : public NotificationChannelsProviderAndroid::NotificationChannelsBridge {
+ public:
+  ~MockNotificationChannelsBridge() = default;
+  MOCK_METHOD0(ShouldUseChannelSettings, bool());
+  MOCK_METHOD2(CreateChannel, void(const std::string&, bool));
+  MOCK_METHOD1(GetChannelStatus, NotificationChannelStatus(const std::string&));
+  MOCK_METHOD1(DeleteChannel, void(const std::string&));
+};
+
+class NotificationChannelsProviderAndroidTest : public testing::Test {
+ public:
+  NotificationChannelsProviderAndroidTest()
+      : mock_bridge_(new MockNotificationChannelsBridge()) {}
+  ~NotificationChannelsProviderAndroidTest() {
+    channels_provider_->ShutdownOnUIThread();
+  }
+
+ protected:
+  // No leak because ownership is passed to channels_provider_ in constructor.
+  MockNotificationChannelsBridge* mock_bridge_;
+  std::unique_ptr<NotificationChannelsProviderAndroid> channels_provider_;
+  void InitChannelsProvider(bool should_use_channels) {
+    EXPECT_CALL(*mock_bridge_, ShouldUseChannelSettings())
+        .WillOnce(Return(should_use_channels));
+    // Can't use base::MakeUnique because the provider's constructor is private.
+    channels_provider_ =
+        base::WrapUnique(new NotificationChannelsProviderAndroid(
+            base::WrapUnique(mock_bridge_)));
+  }
+};
+
+TEST_F(NotificationChannelsProviderAndroidTest,
+       SetWebsiteSettingWhenChannelsShouldNotBeUsed_NoopAndReturnsFalse) {
+  this->InitChannelsProvider(false /* should_use_channels */);
+  bool result = channels_provider_->SetWebsiteSetting(
+      ContentSettingsPattern::FromString(kTestOrigin), ContentSettingsPattern(),
+      CONTENT_SETTINGS_TYPE_NOTIFICATIONS, std::string(),
+      new base::Value(CONTENT_SETTING_BLOCK));
+
+  EXPECT_FALSE(result);
+}
+
+TEST_F(NotificationChannelsProviderAndroidTest,
+       SetWebsiteSettingAllowedWhenChannelUnavailable_CreatesEnabledChannel) {
+  InitChannelsProvider(true /* should_use_channels */);
+  EXPECT_CALL(*mock_bridge_, GetChannelStatus(kTestOrigin))
+      .WillOnce(Return(NotificationChannelStatus::UNAVAILABLE));
+  EXPECT_CALL(*mock_bridge_, CreateChannel(kTestOrigin, true /* enabled */));
+
+  bool result = channels_provider_->SetWebsiteSetting(
+      ContentSettingsPattern::FromString(kTestOrigin), ContentSettingsPattern(),
+      CONTENT_SETTINGS_TYPE_NOTIFICATIONS, std::string(),
+      new base::Value(CONTENT_SETTING_ALLOW));
+
+  EXPECT_TRUE(result);
+}
+
+TEST_F(NotificationChannelsProviderAndroidTest,
+       SetWebsiteSettingBlockedWhenChannelUnavailable_CreatesDisabledChannel) {
+  InitChannelsProvider(true /* should_use_channels */);
+  EXPECT_CALL(*mock_bridge_, GetChannelStatus(kTestOrigin))
+      .WillOnce(Return(NotificationChannelStatus::UNAVAILABLE));
+  EXPECT_CALL(*mock_bridge_, CreateChannel(kTestOrigin, false /* enabled */));
+
+  bool result = channels_provider_->SetWebsiteSetting(
+      ContentSettingsPattern::FromString(kTestOrigin), ContentSettingsPattern(),
+      CONTENT_SETTINGS_TYPE_NOTIFICATIONS, std::string(),
+      new base::Value(CONTENT_SETTING_BLOCK));
+
+  EXPECT_TRUE(result);
+}
+
+TEST_F(NotificationChannelsProviderAndroidTest,
+       SetWebsiteSettingAllowedWhenChannelAllowed_NoopAndReturnsTrue) {
+  InitChannelsProvider(true /* should_use_channels */);
+  EXPECT_CALL(*mock_bridge_, GetChannelStatus(kTestOrigin))
+      .WillOnce(Return(NotificationChannelStatus::ENABLED));
+
+  bool result = channels_provider_->SetWebsiteSetting(
+      ContentSettingsPattern::FromString(kTestOrigin), ContentSettingsPattern(),
+      CONTENT_SETTINGS_TYPE_NOTIFICATIONS, std::string(),
+      new base::Value(CONTENT_SETTING_ALLOW));
+
+  EXPECT_TRUE(result);
+}
+
+TEST_F(NotificationChannelsProviderAndroidTest,
+       SetWebsiteSettingBlockedWhenChannelBlocked_NoopAndReturnsTrue) {
+  InitChannelsProvider(true /* should_use_channels */);
+  EXPECT_CALL(*mock_bridge_, GetChannelStatus(kTestOrigin))
+      .WillOnce(Return(NotificationChannelStatus::BLOCKED));
+
+  bool result = channels_provider_->SetWebsiteSetting(
+      ContentSettingsPattern::FromString(kTestOrigin), ContentSettingsPattern(),
+      CONTENT_SETTINGS_TYPE_NOTIFICATIONS, std::string(),
+      new base::Value(CONTENT_SETTING_BLOCK));
+
+  EXPECT_TRUE(result);
+}
+
+TEST_F(NotificationChannelsProviderAndroidTest,
+       SetWebsiteSettingDefault_DeletesChannelAndReturnsTrue) {
+  InitChannelsProvider(true /* should_use_channels */);
+  EXPECT_CALL(*mock_bridge_, DeleteChannel(kTestOrigin));
+  bool result = channels_provider_->SetWebsiteSetting(
+      ContentSettingsPattern::FromString(kTestOrigin), ContentSettingsPattern(),
+      CONTENT_SETTINGS_TYPE_NOTIFICATIONS, std::string(), nullptr);
+
+  EXPECT_TRUE(result);
+}