Don't ignore manifest icons for sites that don't have a service worker.

chrome/browser/android/webapps/add_to_homescreen_data_fetcher_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/webapps/add_to_homescreen_data_fetcher.h"
 
 #include <memory>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/nullable_string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
+#include "chrome/browser/installable/installable_manager.h"
 #include "chrome/common/web_application_info.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/service_worker/embedded_worker_test_helper.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/manifest.h"
 #include "content/test/test_web_contents.h"
 #include "net/http/http_status_code.h"
 #include "third_party/WebKit/public/platform/WebDisplayMode.h"
 #include "ui/gfx/image/image_unittest_util.h"
 #include "url/gurl.h"
 
-// TODO(zpeng): Effectively test scenarios where both timeout callback and
-// success callback are invoked. See crbug.com/697228.
-
 namespace {
 
+const char* kWebApplicationInfoTitle = "Meta Title";
 const char* kDefaultManifestUrl = "https://www.example.com/manifest.json";
 const char* kDefaultManifestName = "Default Name";
 const char* kDefaultManifestShortName = "Default Short Name";
 const char* kDefaultStartUrl = "https://www.example.com/index.html";
 const blink::WebDisplayMode kDefaultManifestDisplayMode =
     blink::kWebDisplayModeStandalone;
 
 // WebContents subclass which mocks out image and manifest fetching.
 class MockWebContents : public content::TestWebContents {
  public:
   explicit MockWebContents(content::BrowserContext* browser_context)
-      : content::TestWebContents(browser_context) {}
+      : content::TestWebContents(browser_context),
+        should_image_time_out_(false),
+        should_manifest_time_out_(false) {}
 
-  ~MockWebContents() override {
-  }
+  ~MockWebContents() override {}
 
-  // Sets the manifest to be returned by GetManifest().
-  // |fetch_delay_ms| is the time in milliseconds that the simulated fetch of
-  // the web manifest should take.
   void SetManifest(const GURL& manifest_url,
-                   const content::Manifest& manifest,
-                   int fetch_delay_ms) {
+                   const content::Manifest& manifest) {
     manifest_url_ = manifest_url;
     manifest_ = manifest;
-    manifest_fetch_delay_ms_ = fetch_delay_ms;
   }
 
   int DownloadImage(const GURL& url,
                     bool is_favicon,
                     uint32_t max_bitmap_size,
                     bool bypass_cache,
                     const ImageDownloadCallback& callback) override {
+    if (should_image_time_out_)
+      return 0;
+
     const int kIconSizePx = 144;
     SkBitmap icon = gfx::test::CreateBitmap(kIconSizePx, kIconSizePx);
     std::vector<SkBitmap> icons(1u, icon);
     std::vector<gfx::Size> pixel_sizes(1u, gfx::Size(kIconSizePx, kIconSizePx));
-    content::BrowserThread::PostTask(
-        content::BrowserThread::UI,
-        FROM_HERE,
-        base::Bind(callback, 0, net::HTTP_OK, url, icons, pixel_sizes));
+    content::BrowserThread::GetTaskRunnerForThread(content::BrowserThread::UI)
+        ->PostTask(FROM_HERE, base::Bind(callback, 0, net::HTTP_OK, url, icons,
+                                         pixel_sizes));
     return 0;
   }
 
   void GetManifest(const GetManifestCallback& callback) override {
-    content::BrowserThread::PostDelayedTask(
-        content::BrowserThread::UI, FROM_HERE,
-        base::Bind(callback, manifest_url_, manifest_),
-        base::TimeDelta::FromMilliseconds(manifest_fetch_delay_ms_));
+    if (should_manifest_time_out_)
+      return;
+
+    content::BrowserThread::GetTaskRunnerForThread(content::BrowserThread::UI)
+        ->PostTask(FROM_HERE, base::Bind(callback, manifest_url_, manifest_));
+  }
+
+  void SetShouldImageTimeOut(bool should_time_out) {
+    should_image_time_out_ = should_time_out;
+  }
+
+  void SetShouldManifestTimeOut(bool should_time_out) {
+    should_manifest_time_out_ = should_time_out;
   }
 
  private:
   GURL manifest_url_;
   content::Manifest manifest_;
-  int manifest_fetch_delay_ms_;
+  bool should_image_time_out_;
+  bool should_manifest_time_out_;
 
   DISALLOW_COPY_AND_ASSIGN(MockWebContents);
 };
 
 // Tracks which of the AddToHomescreenDataFetcher::Observer callbacks have been
 // called.
 class ObserverWaiter : public AddToHomescreenDataFetcher::Observer {
  public:
   ObserverWaiter()
       : is_webapk_compatible_(false),
         determined_webapk_compatibility_(false),
         title_available_(false),
         data_available_(false) {}
   ~ObserverWaiter() override {}
 
   // Waits till the OnDataAvailable() callback is called.
   void WaitForDataAvailable() {
     if (data_available_)
       return;
 
     base::RunLoop run_loop;
     quit_closure_ = run_loop.QuitClosure();
     run_loop.Run();
   }
 
   void OnDidDetermineWebApkCompatibility(bool is_webapk_compatible) override {
+    EXPECT_FALSE(title_available_);
     determined_webapk_compatibility_ = true;
     is_webapk_compatible_ = is_webapk_compatible;
   }
 
   void OnUserTitleAvailable(const base::string16& title) override {
+    EXPECT_FALSE(data_available_);
     title_available_ = true;
+    title_ = title;
   }
 
   SkBitmap FinalizeLauncherIconInBackground(const SkBitmap& icon,
                                             const GURL& url,
                                             bool* is_generated) override {
     *is_generated = false;
     return icon;
   }
 
   void OnDataAvailable(const ShortcutInfo& info,
                        const SkBitmap& primary_icon,
                        const SkBitmap& badge_icon) override {
+    EXPECT_TRUE(title_available_);
     data_available_ = true;
     if (!quit_closure_.is_null())
       quit_closure_.Run();
   }
 
+  base::string16 title() const { return title_; }
   bool is_webapk_compatible() const { return is_webapk_compatible_; }
   bool determined_webapk_compatibility() const {
     return determined_webapk_compatibility_;
   }
   bool title_available() const { return title_available_; }
 
  private:
+  base::string16 title_;
   bool is_webapk_compatible_;
   bool determined_webapk_compatibility_;
   bool title_available_;
   bool data_available_;
   base::Closure quit_closure_;
 
   DISALLOW_COPY_AND_ASSIGN(ObserverWaiter);
 };
 
 // Builds non-null base::NullableString16 from a UTF8 string.
 base::NullableString16 NullableStringFromUTF8(const std::string& value) {
   return base::NullableString16(base::UTF8ToUTF16(value), false);
 }
 
+content::Manifest BuildEmptyManifest() {
+  return content::Manifest();
+}
+
 // Builds WebAPK compatible content::Manifest.
 content::Manifest BuildDefaultManifest() {
   content::Manifest manifest;
   manifest.name = NullableStringFromUTF8(kDefaultManifestName);
   manifest.short_name = NullableStringFromUTF8(kDefaultManifestShortName);
   manifest.start_url = GURL(kDefaultStartUrl);
   manifest.display = kDefaultManifestDisplayMode;
+
+  content::Manifest::Icon primary_icon;
+  primary_icon.type = base::ASCIIToUTF16("image/png");
+  primary_icon.sizes.push_back(gfx::Size(144, 144));
+  primary_icon.purpose.push_back(content::Manifest::Icon::IconPurpose::ANY);
+  primary_icon.src = GURL("https://www.google.com/image.png");
+  manifest.icons.push_back(primary_icon);
+
   return manifest;
 }
 
 }  // anonymous namespace
 
 // Tests AddToHomescreenDataFetcher. These tests should be browser tests but
 // Android does not support browser tests yet (crbug.com/611756).
 class AddToHomescreenDataFetcherTest : public ChromeRenderViewHostTestHarness {
  public:
   AddToHomescreenDataFetcherTest() {}
   ~AddToHomescreenDataFetcherTest() override {}
 
   void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
 
     ASSERT_TRUE(profile()->CreateHistoryService(false, true));
     profile()->CreateFaviconService();
 
     embedded_worker_test_helper_.reset(
         new content::EmbeddedWorkerTestHelper(base::FilePath()));
 
     scoped_refptr<content::SiteInstance> site_instance =
         content::SiteInstance::Create(browser_context());
     site_instance->GetProcess()->Init();
     MockWebContents* mock_web_contents = new MockWebContents(browser_context());
     mock_web_contents->Init(content::WebContents::CreateParams(
         browser_context(), std::move(site_instance)));
+    InstallableManager::CreateForWebContents(mock_web_contents);
     SetContents(mock_web_contents);
+    NavigateAndCommit(GURL(kDefaultStartUrl));
   }
 
   void TearDown() override {
     embedded_worker_test_helper_.reset();
     ChromeRenderViewHostTestHarness::TearDown();
   }
 
   scoped_refptr<AddToHomescreenDataFetcher> BuildFetcher(
       bool check_webapk_compatible,
       AddToHomescreenDataFetcher::Observer* observer) {
-    return new AddToHomescreenDataFetcher(web_contents(), 1, 1, 1, 1, 1,
+    return new AddToHomescreenDataFetcher(web_contents(), 1, 1, 1, 1, 1, 500,
                                           check_webapk_compatible, observer);
   }
 
   // Set the manifest to be returned as a result of WebContents::GetManifest().
   void SetManifest(const GURL& manifest_url,
-                   const content::Manifest& manifest,
-                   int fetch_delay_ms) {
+                   const content::Manifest& manifest) {
     MockWebContents* mock_web_contents =
         static_cast<MockWebContents*>(web_contents());
-    mock_web_contents->SetManifest(manifest_url, manifest, fetch_delay_ms);
+    mock_web_contents->SetManifest(manifest_url, manifest);
+  }
+
+  void SetShouldImageTimeOut(bool should_time_out) {
+    MockWebContents* mock_web_contents =
+        static_cast<MockWebContents*>(web_contents());
+    mock_web_contents->SetShouldImageTimeOut(should_time_out);
+  }
+
+  void SetShouldManifestTimeOut(bool should_time_out) {
+    MockWebContents* mock_web_contents =
+        static_cast<MockWebContents*>(web_contents());
+    mock_web_contents->SetShouldManifestTimeOut(should_time_out);
   }
 
   // Registers service worker at |url|. Blocks till the service worker is
   // registered.
   void RegisterServiceWorker(const GURL& url) {
     base::RunLoop run_loop;
     embedded_worker_test_helper_->context()->RegisterServiceWorker(
         url, GURL(url.spec() + "/service_worker.js"), nullptr,
         base::Bind(&AddToHomescreenDataFetcherTest::OnServiceWorkerRegistered,
                    base::Unretained(this), run_loop.QuitClosure()));
@@ skipping 10 matching lines @@
         << content::ServiceWorkerStatusToString(status);
     callback.Run();
   }
 
   std::unique_ptr<content::EmbeddedWorkerTestHelper>
       embedded_worker_test_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(AddToHomescreenDataFetcherTest);
 };
 
-// Checks that AddToHomescreenDataFetcher::Observer::OnUserTitleAvailable() is
-// called when the web manifest fetch times out. The add-to-homescreen dialog
-// makes the dialog's text field editable once OnUserTitleAvailable() is called.
-TEST_F(AddToHomescreenDataFetcherTest,
-    DISABLED_ManifestFetchTimesOutNoServiceWorker) {
-  SetManifest(GURL(kDefaultManifestUrl), BuildDefaultManifest(), 10000);
-
-  ObserverWaiter waiter;
-  scoped_refptr<AddToHomescreenDataFetcher> fetcher(
-      BuildFetcher(false, &waiter));
-  fetcher->OnDidGetWebApplicationInfo(WebApplicationInfo());
-  waiter.WaitForDataAvailable();
-
-  EXPECT_FALSE(waiter.determined_webapk_compatibility());
-  EXPECT_TRUE(waiter.title_available());
-
-  fetcher->set_weak_observer(nullptr);
-}
-
 // Class for tests which should be run with AddToHomescreenDataFetcher built
 // with both true and false values of |check_webapk_compatible|.
 class AddToHomescreenDataFetcherTestCommon
     : public AddToHomescreenDataFetcherTest,
       public testing::WithParamInterface<bool> {
  public:
   AddToHomescreenDataFetcherTestCommon() {}
   ~AddToHomescreenDataFetcherTestCommon() override {}
 
   scoped_refptr<AddToHomescreenDataFetcher> BuildFetcher(
       AddToHomescreenDataFetcher::Observer* observer) {
     return AddToHomescreenDataFetcherTest::BuildFetcher(
         check_webapk_compatibility(), observer);
   }
 
   // The value of |check_webapk_compatible| used when building the
   // AddToHomescreenDataFetcher.
   bool check_webapk_compatibility() { return GetParam(); }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AddToHomescreenDataFetcherTestCommon);
 };
 
+// Checks that AddToHomescreenDataFetcher::Observer::OnUserTitleAvailable() is
+// called when the web manifest returned is empty. The add-to-homescreen dialog
+// makes the dialog's text field editable once OnUserTitleAvailable() is called.
+TEST_P(AddToHomescreenDataFetcherTestCommon, EmptyManifest) {
+  WebApplicationInfo web_application_info;
+  web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
+
+  SetManifest(GURL(kDefaultManifestUrl), BuildEmptyManifest());
+
+  ObserverWaiter waiter;
+  scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
+  fetcher->OnDidGetWebApplicationInfo(web_application_info);
+  waiter.WaitForDataAvailable();
+
+  EXPECT_EQ(check_webapk_compatibility(),
+            waiter.determined_webapk_compatibility());
+  EXPECT_FALSE(waiter.is_webapk_compatible());
+  EXPECT_TRUE(waiter.title_available());
+  EXPECT_TRUE(base::EqualsASCII(waiter.title(), kWebApplicationInfoTitle));
+
+  fetcher->set_weak_observer(nullptr);
+}
+
 // Test that when the manifest provides Manifest::short_name but not
 // Manifest::name that Manifest::short_name is used as the name instead of
 // WebApplicationInfo::title.
 TEST_P(AddToHomescreenDataFetcherTestCommon,
        ManifestShortNameClobbersWebApplicationName) {
   WebApplicationInfo web_application_info;
-  web_application_info.title = base::UTF8ToUTF16("Meta Title");
+  web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
 
   content::Manifest manifest(BuildDefaultManifest());
   manifest.name = base::NullableString16();
 
   RegisterServiceWorker(GURL(kDefaultStartUrl));
-  SetManifest(GURL(kDefaultManifestUrl), manifest, 0);
+  SetManifest(GURL(kDefaultManifestUrl), manifest);
 
   ObserverWaiter waiter;
   scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
   fetcher->OnDidGetWebApplicationInfo(web_application_info);
   waiter.WaitForDataAvailable();
 
+  EXPECT_TRUE(base::EqualsASCII(waiter.title(), kDefaultManifestShortName));
   EXPECT_TRUE(base::EqualsASCII(fetcher->shortcut_info().name,
                                 kDefaultManifestShortName));
 
   fetcher->set_weak_observer(nullptr);
 }
 
 // Test that when the manifest does not provide either Manifest::short_name nor
 // Manifest::name that:
 // - The page is not WebAPK compatible.
 // - WebApplicationInfo::title is used as the "name".
 TEST_P(AddToHomescreenDataFetcherTestCommon, ManifestNoNameNoShortName) {
-    const char* kWebApplicationInfoTitle = "Meta Title";
-    WebApplicationInfo web_application_info;
-    web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
+  WebApplicationInfo web_application_info;
+  web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
 
-    content::Manifest manifest(BuildDefaultManifest());
-    manifest.name = base::NullableString16();
-    manifest.short_name = base::NullableString16();
+  content::Manifest manifest(BuildDefaultManifest());
+  manifest.name = base::NullableString16();
+  manifest.short_name = base::NullableString16();
 
-    RegisterServiceWorker(GURL(kDefaultStartUrl));
-    SetManifest(GURL(kDefaultManifestUrl), manifest, 0);
+  RegisterServiceWorker(GURL(kDefaultStartUrl));
+  SetManifest(GURL(kDefaultManifestUrl), manifest);
 
-    ObserverWaiter waiter;
-    scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
-    fetcher->OnDidGetWebApplicationInfo(web_application_info);
-    waiter.WaitForDataAvailable();
+  ObserverWaiter waiter;
+  scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
+  fetcher->OnDidGetWebApplicationInfo(web_application_info);
+  waiter.WaitForDataAvailable();
 
-    EXPECT_FALSE(waiter.is_webapk_compatible());
-    EXPECT_TRUE(base::EqualsASCII(fetcher->shortcut_info().name,
-                                  kWebApplicationInfoTitle));
+  EXPECT_EQ(check_webapk_compatibility(),
+            waiter.determined_webapk_compatibility());
+  EXPECT_FALSE(waiter.is_webapk_compatible());
+  EXPECT_TRUE(base::EqualsASCII(waiter.title(), kWebApplicationInfoTitle));
+  EXPECT_TRUE(base::EqualsASCII(fetcher->shortcut_info().name,
+                                kWebApplicationInfoTitle));
 
-    fetcher->set_weak_observer(nullptr);
+  fetcher->set_weak_observer(nullptr);
 }
 
 // Checks that the AddToHomescreenDataFetcher::Observer callbacks are called
-// when a service worker is registered and the manifest fetch times out.
-TEST_P(AddToHomescreenDataFetcherTestCommon, DISABLED_ManifestFetchTimesOut) {
-    RegisterServiceWorker(GURL(kDefaultStartUrl));
-    SetManifest(GURL(kDefaultManifestUrl), BuildDefaultManifest(), 10000);
+// when the manifest fetch times out.
+TEST_P(AddToHomescreenDataFetcherTestCommon, ManifestFetchTimesOut) {
+  WebApplicationInfo web_application_info;
+  web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
 
-    ObserverWaiter waiter;
-    scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
-    fetcher->OnDidGetWebApplicationInfo(WebApplicationInfo());
-    waiter.WaitForDataAvailable();
+  RegisterServiceWorker(GURL(kDefaultStartUrl));
+  SetManifest(GURL(kDefaultManifestUrl), BuildDefaultManifest());
+  SetShouldManifestTimeOut(true);
+  SetShouldImageTimeOut(false);
 
-    if (check_webapk_compatibility()) {
-      EXPECT_TRUE(waiter.determined_webapk_compatibility());
-      EXPECT_FALSE(waiter.is_webapk_compatible());
-    } else {
-      EXPECT_FALSE(waiter.determined_webapk_compatibility());
-    }
-    // This callback enables the text field in the add-to-homescreen dialog.
-    EXPECT_TRUE(waiter.title_available());
+  ObserverWaiter waiter;
+  scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
+  fetcher->OnDidGetWebApplicationInfo(web_application_info);
+  waiter.WaitForDataAvailable();
 
-    fetcher->set_weak_observer(nullptr);
+  EXPECT_EQ(check_webapk_compatibility(),
+            waiter.determined_webapk_compatibility());
+  EXPECT_FALSE(waiter.is_webapk_compatible());
+  EXPECT_TRUE(base::EqualsASCII(waiter.title(), kWebApplicationInfoTitle));
+  EXPECT_TRUE(waiter.title_available());
+
+  fetcher->set_weak_observer(nullptr);
+}
+
+// Checks that the AddToHomescreenDataFetcher::Observer callbacks are called
+// when the image fetch times out.
+TEST_P(AddToHomescreenDataFetcherTestCommon, ImageFetchTimesOut) {
+  WebApplicationInfo web_application_info;
+  web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
+
+  RegisterServiceWorker(GURL(kDefaultStartUrl));
+  SetManifest(GURL(kDefaultManifestUrl), BuildDefaultManifest());
+  SetShouldManifestTimeOut(false);
+  SetShouldImageTimeOut(true);
+
+  ObserverWaiter waiter;
+  scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
+  fetcher->OnDidGetWebApplicationInfo(web_application_info);
+  waiter.WaitForDataAvailable();
+
+  EXPECT_EQ(check_webapk_compatibility(),
+            waiter.determined_webapk_compatibility());
+  EXPECT_FALSE(waiter.is_webapk_compatible());
+  EXPECT_TRUE(waiter.title_available());
+  EXPECT_TRUE(base::EqualsASCII(waiter.title(), kWebApplicationInfoTitle));
+
+  fetcher->set_weak_observer(nullptr);
+}
+
+// Checks that the AddToHomescreenDataFetcher::Observer callbacks are called
+// when the service worker check times out.
+TEST_P(AddToHomescreenDataFetcherTestCommon, ServiceWorkerCheckTimesOut) {
+  WebApplicationInfo web_application_info;
+  web_application_info.title = base::UTF8ToUTF16(kWebApplicationInfoTitle);
+
+  // Not registering a service worker means we'll wait and time out for the
+  // worker.
+  SetManifest(GURL(kDefaultManifestUrl), BuildDefaultManifest());
+  SetShouldManifestTimeOut(false);
+  SetShouldImageTimeOut(false);
+
+  ObserverWaiter waiter;
+  scoped_refptr<AddToHomescreenDataFetcher> fetcher(BuildFetcher(&waiter));
+  fetcher->OnDidGetWebApplicationInfo(web_application_info);
+  waiter.WaitForDataAvailable();
+
+  EXPECT_EQ(check_webapk_compatibility(),
+            waiter.determined_webapk_compatibility());
+  EXPECT_FALSE(waiter.is_webapk_compatible());
+  EXPECT_TRUE(waiter.title_available());
+  EXPECT_TRUE(base::EqualsASCII(waiter.title(), kDefaultManifestShortName));
+  EXPECT_TRUE(base::EqualsASCII(fetcher->shortcut_info().user_title,
+                                kDefaultManifestShortName));
+
+  fetcher->set_weak_observer(nullptr);
 }
 
 INSTANTIATE_TEST_CASE_P(CheckWebApkCompatibility,
                         AddToHomescreenDataFetcherTestCommon,
                         ::testing::Values(false, true));