Continue bitmap fetching for notifications.

chrome/browser/notifications/sync_notifier/notification_bitmap_fetcher_unittest.cc

+// Copyright (c) 2013 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 "base/message_loop.h"
+#include "chrome/browser/notifications/sync_notifier/notification_bitmap_fetcher.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/test/test_browser_thread.h"
+#include "net/base/host_port_pair.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_request_status.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/skia/include/core/SKBitmap.h"
+
+namespace {
+// FF0000FF is 100% alpha and max green.(A, R, B, G)
+uint32_t kMaxGreen = 0xFF0000FF;
+
+}  // namespace
+
+namespace net {
+  class HttpRequestHeaders;
+  class HttpResponseHeaders;
+  class URLRequestContextGetter;
+}
+
+namespace notifier {
+
+
+// TODO(reviewers): Should this stub class and the identical one in the browser
+//  test share an implementation file?  If so, is a .h file OK for stubs?
+class StubURLFetcher : public net::URLFetcher {

[dcheng, 2013/05/22 19:38:35]

Is it possible to use TestURLFetcher instead? If it's not, there should be a
comment why here.

[Pete Williamson, 2013/05/23 16:47:29]

Done.

+ public:
+  typedef std::vector<std::string> ResponseCookies;
+  StubURLFetcher() : fetch_started_(false) {}
+
+  virtual ~StubURLFetcher() {}
+  static URLFetcher* Create(const GURL& url,
+                            URLFetcher::RequestType request_type,
+                            net::URLFetcherDelegate* d) { return NULL; }
+  static URLFetcher* Create(int id,
+                            const GURL& url,
+                            URLFetcher::RequestType request_type,
+                            net::URLFetcherDelegate* d) { return NULL; }
+  static void CancelAll() {}
+  static void SetEnableInterceptionForTests(bool enabled) {}
+  static void SetIgnoreCertificateRequests(bool ignored) {}
+  void SetUploadData(const std::string& upload_content_type,
+                             const std::string& upload_content) {}
+  void SetUploadFilePath(
+      const std::string& upload_content_type,
+      const base::FilePath& file_path,
+      uint64 range_offset,
+      uint64 range_length,
+      scoped_refptr<base::TaskRunner> file_task_runner) {}
+  void SetChunkedUpload(const std::string& upload_content_type) {}
+  void AppendChunkToUpload(const std::string& data,
+                                   bool is_last_chunk) {}
+  void SetLoadFlags(int load_flags) {}
+  int GetLoadFlags() const { return 0; }
+  void SetReferrer(const std::string& referrer) {}
+  void SetExtraRequestHeaders(
+      const std::string& extra_request_headers) {}
+  void AddExtraRequestHeader(const std::string& header_line) {}
+  void GetExtraRequestHeaders(net::HttpRequestHeaders* headers) const {}
+  void SetRequestContext(
+      net::URLRequestContextGetter* request_context_getter) {}
+  void SetFirstPartyForCookies(
+      const GURL& first_party_for_cookies) {}
+  void SetURLRequestUserData(
+      const void* key,
+      const CreateDataCallback& create_data_callback) {}
+  void SetStopOnRedirect(bool stop_on_redirect) {}
+  void SetAutomaticallyRetryOn5xx(bool retry) {}
+  void SetMaxRetriesOn5xx(int max_retries) {}
+  int GetMaxRetriesOn5xx() const { return 0; }
+  base::TimeDelta GetBackoffDelay() const { return base::TimeDelta(); }
+  void SetAutomaticallyRetryOnNetworkChanges(int max_retries) {}
+  void SaveResponseToFileAtPath(
+      const base::FilePath& file_path,
+      scoped_refptr<base::TaskRunner> file_task_runner) {}
+  void SaveResponseToTemporaryFile(
+      scoped_refptr<base::TaskRunner> file_task_runner) {}
+  net::HttpResponseHeaders* GetResponseHeaders() const { return NULL; }
+  net::HostPortPair GetSocketAddress() const { return net::HostPortPair(); }
+  bool WasFetchedViaProxy() const { return true; }
+  void Start() {
+    fetch_started_ = true;
+  }
+  const GURL& GetOriginalURL() const { return gurl_; }
+  const GURL& GetURL() const { return gurl_; }
+  const net::URLRequestStatus& GetStatus() const {
+    return request_status;
+  }
+  int GetResponseCode() const { return 0; }
+  const net::ResponseCookies& GetCookies() const {
+    return response_cookies_;
+  }
+  bool FileErrorOccurred(int* out_error_code) const { return false; }
+  void ReceivedContentWasMalformed() {}
+  bool GetResponseAsString(std::string* out_response_string) const {
+    return true;
+  }
+  bool GetResponseAsFilePath(
+      bool take_ownership,
+      base::FilePath* out_response_path) const { return true; }
+  bool fetch_started() {
+    return fetch_started_;
+  }
+
+ private:
+  GURL gurl_;
+  net::ResponseCookies response_cookies_;
+  net::URLRequestStatus request_status;
+  bool fetch_started_;
+
+};
+
+class NotificationBitmapFetcherTest : public testing::Test {
+ public:
+  NotificationBitmapFetcherTest()
+      : ui_thread_(content::BrowserThread::UI, &message_loop_) {}
+
+ private:
+  MessageLoopForIO message_loop_;
+  content::TestBrowserThread ui_thread_;
+};
+
+TEST_F(NotificationBitmapFetcherTest, ImageReadyTest) {
+  GURL url("http://localhost");
+  scoped_ptr<net::URLFetcher> url_fetcher(new StubURLFetcher());
+  scoped_refptr<base::MessageLoopProxy> task_runner =
+      content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::UI);
+
+  scoped_refptr<NotificationBitmapFetcher> fetcher =
+      new NotificationBitmapFetcher(url, url_fetcher, task_runner);
+
+  EXPECT_EQ(false, fetcher->image_ready());
+  fetcher->image_ready_ = true;
+  EXPECT_EQ(true, fetcher->image_ready());
+}
+
+TEST_F(NotificationBitmapFetcherTest, StartFetchTest) {
+  GURL url("http://localhost");
+  StubURLFetcher* stub_url_fetcher = new StubURLFetcher();
+  scoped_ptr<net::URLFetcher> url_fetcher(stub_url_fetcher);
+  scoped_refptr<base::MessageLoopProxy> task_runner =
+      content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::UI);
+
+  scoped_refptr<NotificationBitmapFetcher> fetcher =
+      new NotificationBitmapFetcher(url, url_fetcher, task_runner);
+  fetcher->StartImageFetch();
+
+  // The Start method should have been called.
+  EXPECT_EQ(true, stub_url_fetcher->fetch_started());
+}
+
+TEST_F(NotificationBitmapFetcherTest, HandleImageDecodedTest) {
+  GURL url("http://localhost");
+  StubURLFetcher* stub_url_fetcher = new StubURLFetcher();
+  scoped_ptr<net::URLFetcher> url_fetcher(stub_url_fetcher);
+  scoped_refptr<base::MessageLoopProxy> task_runner =
+      content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::UI);
+  scoped_ptr<SkBitmap> image(new SkBitmap());
+
+  // Put a real bitmap into "image".  2x2 bitmap of green 16 bit pixels.
+  image->setConfig(SkBitmap::kRGB_565_Config, 2, 2);
+  image->allocPixels();
+  SkColor c = kMaxGreen;
+  image->eraseColor(c);
+  // Test that the image is stored and ready. Pixel [0,0] should be green.
+  EXPECT_EQ(8, image->getSize());
+  EXPECT_EQ(kMaxGreen, image->getColor(0, 0));
+
+  scoped_refptr<NotificationBitmapFetcher> fetcher =
+      new NotificationBitmapFetcher(url, url_fetcher, task_runner);
+  EXPECT_EQ(false, fetcher->image_ready());
+
+  fetcher->HandleImageDecoded(image.Pass());
+
+  // Ensure image is marked as succeeded.
+  EXPECT_EQ(false, fetcher->image_failed());
+  EXPECT_EQ(true, fetcher->image_ready());
+  // Test that the image is stored and ready. Pixel [0,0] should be green.
+  EXPECT_EQ(8, fetcher->bitmap()->getSize());
+  EXPECT_EQ(2, fetcher->bitmap()->width());
+  EXPECT_EQ(2, fetcher->bitmap()->height());
+  EXPECT_TRUE(fetcher->bitmap()->getPixels() != NULL);
+  EXPECT_EQ(kMaxGreen, fetcher->bitmap()->getColor(0, 0));
+}
+
+TEST_F(NotificationBitmapFetcherTest, HandleImageFailedTest) {
+  GURL url("http://localhost");
+  StubURLFetcher* stub_url_fetcher = new StubURLFetcher();
+  scoped_ptr<net::URLFetcher> url_fetcher(stub_url_fetcher);
+  scoped_refptr<base::MessageLoopProxy> task_runner =
+      content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::UI);
+
+  scoped_refptr<NotificationBitmapFetcher> fetcher =
+      new NotificationBitmapFetcher(url, url_fetcher, task_runner);
+  EXPECT_EQ(false, fetcher->image_failed_);
+
+  fetcher->HandleImageFailed();
+
+  EXPECT_EQ(true, fetcher->image_failed_);
+  EXPECT_EQ(false, fetcher->image_ready());
+}
+
+}  // namespace notifier