[ImportantSites] JNI bindings for CBD filtering and Important Sites.

chrome/browser/android/preferences/important_sites_util_unittest.cc

+// Copyright 2016 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/android/preferences/important_sites_util.h"
+
+#include <memory>
+#include <utility>
+
+#include "base/files/scoped_temp_dir.h"
+#include "base/macros.h"
+#include "chrome/browser/content_settings/host_content_settings_map_factory.h"
+#include "chrome/browser/engagement/site_engagement_helper.h"
+#include "chrome/browser/engagement/site_engagement_metrics.h"
+#include "chrome/browser/engagement/site_engagement_service.h"
+#include "chrome/browser/engagement/site_engagement_service_factory.h"
+#include "chrome/browser/history/history_service_factory.h"
+#include "chrome/test/base/chrome_render_view_host_test_harness.h"
+#include "chrome/test/base/testing_profile.h"
+#include "components/content_settings/core/browser/host_content_settings_map.h"
+#include "components/content_settings/core/common/content_settings.h"
+#include "components/content_settings/core/common/content_settings_pattern.h"
+#include "components/history/core/browser/history_database_params.h"
+#include "components/history/core/browser/history_service.h"
+#include "components/history/core/test/test_history_database.h"
+#include "components/keyed_service/core/keyed_service.h"
+#include "content/public/browser/web_contents.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+const size_t kNumImportantSites = 5;
+base::FilePath g_temp_history_dir;
+
+scoped_ptr<KeyedService> BuildTestHistoryService(
+    content::BrowserContext* context) {
+  scoped_ptr<history::HistoryService> service(new history::HistoryService());
+  service->Init(history::TestHistoryDatabaseParamsForPath(g_temp_history_dir));
+  return std::move(service);
+}
+
+}  // namespace
+
+class ImportantSitesUtilTest : public ChromeRenderViewHostTestHarness {
+ public:
+  void SetUp() override {
+    ChromeRenderViewHostTestHarness::SetUp();
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+    g_temp_history_dir = temp_dir_.path();
+    HistoryServiceFactory::GetInstance()->SetTestingFactory(
+        profile(), &BuildTestHistoryService);
+    SiteEngagementScore::SetParamValuesForTesting();
+  }
+
+  void AddContentSetting(ContentSettingsType type,
+                         ContentSetting setting,
+                         const GURL& origin) {
+    ContentSettingsForOneType settings_list;
+
+    HostContentSettingsMapFactory::GetForProfile(profile())
+        ->SetContentSettingCustomScope(
+            ContentSettingsPattern::FromURLNoWildcard(origin),
+            ContentSettingsPattern::Wildcard(),
+            CONTENT_SETTINGS_TYPE_NOTIFICATIONS,
+            content_settings::ResourceIdentifier(), setting);
+  }
+
+ private:
+  base::ScopedTempDir temp_dir_;
+};
+
+TEST_F(ImportantSitesUtilTest, TestNoImportantSites) {
+  EXPECT_TRUE(ImportantSitesUtil::GetImportantRegisterableDomains(
+                  profile(), kNumImportantSites)
+                  .empty());
+}
+
+TEST_F(ImportantSitesUtilTest, NotificationsThenEngagement) {
+  SiteEngagementService* service =
+      SiteEngagementServiceFactory::GetForProfile(profile());
+  ASSERT_TRUE(service);
+
+  GURL url1("http://www.google.com/");
+  GURL url2("https://www.google.com/");
+  GURL url3("https://drive.google.com/");
+  GURL url4("https://www.chrome.com/");
+  GURL url5("https://www.example.com/");
+  GURL url6("https://youtube.com/");
+  GURL url7("https://foo.bar/");
+
+  service->ResetScoreForURL(url1, 5);
+  service->ResetScoreForURL(url2, 2);  // Below medium engagement (5).
+  service->ResetScoreForURL(url3, 7);
+  service->ResetScoreForURL(url4, 8);
+  service->ResetScoreForURL(url5, 9);
+  service->ResetScoreForURL(url6, 1);  // Below the medium engagement (5).
+  service->ResetScoreForURL(url7, 11);
+
+  // Here we should have:
+  // 1: removed domains below minimum engagement,
+  // 2: combined the google.com entries, and
+  // 3: sorted by the score.
+  std::vector<std::string> expected_sorted_domains = {
+      "foo.bar", "example.com", "chrome.com", "google.com"};
+  EXPECT_THAT(ImportantSitesUtil::GetImportantRegisterableDomains(
+                  profile(), kNumImportantSites),
+              ::testing::ElementsAreArray(expected_sorted_domains));
+
+  // Test that notifications get moved to the front.
+  AddContentSetting(CONTENT_SETTINGS_TYPE_NOTIFICATIONS, CONTENT_SETTING_ALLOW,
+                    url6);
+  AddContentSetting(CONTENT_SETTINGS_TYPE_NOTIFICATIONS, CONTENT_SETTING_BLOCK,
+                    url1);
+
+  // /Same as above, but the site with notifications should be at the front.

[Theresa, 2016/04/20 00:45:30]

nit: remove "/" before Same

[dmurph, 2016/04/20 22:06:28]

Done.

+  expected_sorted_domains = {"youtube.com", "foo.bar", "example.com",
+                             "chrome.com", "google.com"};

[Theresa, 2016/04/20 00:45:30]

Is CONTENT_SETTING_BLOCK not a notification that moves things to the front of
this sorted list?

[dmurph, 2016/04/20 22:06:28]

Done.

+  EXPECT_THAT(ImportantSitesUtil::GetImportantRegisterableDomains(
+                  profile(), kNumImportantSites),
+              ::testing::ElementsAreArray(expected_sorted_domains));
+}