chrome/browser/bitmap_fetcher/bitmap_fetcher_browsertest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h"
   6
   7 #include "base/compiler_specific.h"
   8 #include "chrome/browser/profiles/profile.h"
   9 #include "chrome/browser/ui/browser.h"
  10 #include "chrome/test/base/in_process_browser_test.h"
  11 #include "content/public/test/test_utils.h"
  12 #include "net/base/load_flags.h"
  13 #include "net/http/http_status_code.h"
  14 #include "net/url_request/test_url_fetcher_factory.h"
  15 #include "net/url_request/url_fetcher.h"
  16 #include "net/url_request/url_request_status.h"
  17 #include "testing/gtest/include/gtest/gtest.h"
  18 #include "third_party/skia/include/core/SkBitmap.h"
  19 #include "ui/gfx/codec/png_codec.h"
  20 #include "ui/gfx/geometry/size.h"
  21 #include "ui/gfx/skia_util.h"
  22
  23 const bool kAsyncCall = true;
  24 const bool kSyncCall = false;
  25
  26 namespace chrome {
  27
  28 // Class to catch events from the BitmapFetcher for testing.
  29 class BitmapFetcherTestDelegate : public BitmapFetcherDelegate {
  30  public:
  31   explicit BitmapFetcherTestDelegate(bool async) : called_(false),
  32                                                    success_(false),
  33                                                    async_(async) {}
  34
  35   ~BitmapFetcherTestDelegate() override { EXPECT_TRUE(called_); }
  36
  37   // Method inherited from BitmapFetcherDelegate.
  38   void OnFetchComplete(const GURL& url, const SkBitmap* bitmap) override {
  39     called_ = true;
  40     url_ = url;
  41     if (bitmap) {
  42       success_ = true;
  43       bitmap->deepCopyTo(&bitmap_);
  44     }
  45     // For async calls, we need to quit the run loop so the test can continue.
  46     if (async_)
  47       run_loop_.Quit();
  48   }
  49
  50   // Waits until OnFetchComplete() is called. Should only be used for
  51   // async tests.
  52   void Wait() {
  53     ASSERT_TRUE(async_);
  54     run_loop_.Run();
  55   }
  56
  57   GURL url() const { return url_; }
  58   bool success() const { return success_; }
  59   const SkBitmap& bitmap() const { return bitmap_; }
  60
  61  private:
  62   base::RunLoop run_loop_;
  63   bool called_;
  64   GURL url_;
  65   bool success_;
  66   bool async_;
  67   SkBitmap bitmap_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(BitmapFetcherTestDelegate);
  70 };
  71
  72 class BitmapFetcherBrowserTest : public InProcessBrowserTest {
  73  public:
  74   void SetUp() override {
  75     url_fetcher_factory_.reset(
  76         new net::FakeURLFetcherFactory(&url_fetcher_impl_factory_));
  77     InProcessBrowserTest::SetUp();
  78   }
  79
  80  protected:
  81   net::URLFetcherImplFactory url_fetcher_impl_factory_;
  82   scoped_ptr<net::FakeURLFetcherFactory> url_fetcher_factory_;
  83 };
  84
  85 // WARNING:  These tests work with --single_process, but not
  86 // --single-process.  The reason is that the sandbox does not get created
  87 // for us by the test process if --single-process is used.
  88
  89 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, StartTest) {
  90   GURL url("http://example.com/this-should-work");
  91
  92   // Put some realistic looking bitmap data into the url_fetcher.
  93   SkBitmap image;
  94
  95   // Put a real bitmap into "image".  2x2 bitmap of green 32 bit pixels.
  96   image.allocN32Pixels(2, 2);
  97   image.eraseColor(SK_ColorGREEN);
  98
  99   // Encode the bits as a PNG.
 100   std::vector<unsigned char> compressed;
 101   ASSERT_TRUE(gfx::PNGCodec::EncodeBGRASkBitmap(image, true, &compressed));
 102
 103   // Copy the bits into the string, and put them into the FakeURLFetcher.
 104   std::string image_string(compressed.begin(), compressed.end());
 105
 106   // Set up a delegate to wait for the callback.
 107   BitmapFetcherTestDelegate delegate(kAsyncCall);
 108
 109   BitmapFetcher fetcher(url, &delegate);
 110
 111   url_fetcher_factory_->SetFakeResponse(
 112       url, image_string, net::HTTP_OK, net::URLRequestStatus::SUCCESS);
 113
 114   // We expect that the image decoder will get called and return
 115   // an image in a callback to OnImageDecoded().
 116   fetcher.Start(
 117       browser()->profile()->GetRequestContext(),
 118       std::string(),
 119       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
 120       net::LOAD_NORMAL);
 121
 122   // Blocks until test delegate is notified via a callback.
 123   delegate.Wait();
 124
 125   ASSERT_TRUE(delegate.success());
 126
 127   // Make sure we get back the bitmap we expect.
 128   const SkBitmap& found_image = delegate.bitmap();
 129   EXPECT_TRUE(gfx::BitmapsAreEqual(image, found_image));
 130 }
 131
 132 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, OnImageDecodedTest) {
 133   GURL url("http://example.com/this-should-work-as-well");
 134   SkBitmap image;
 135
 136   // Put a real bitmap into "image".  2x2 bitmap of green 16 bit pixels.
 137   image.allocN32Pixels(2, 2);
 138   image.eraseColor(SK_ColorGREEN);
 139
 140   BitmapFetcherTestDelegate delegate(kSyncCall);
 141
 142   BitmapFetcher fetcher(url, &delegate);
 143
 144   fetcher.OnImageDecoded(image);
 145
 146   // Ensure image is marked as succeeded.
 147   EXPECT_TRUE(delegate.success());
 148
 149   // Test that the image is what we expect.
 150   EXPECT_TRUE(gfx::BitmapsAreEqual(image, delegate.bitmap()));
 151 }
 152
 153 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, OnURLFetchFailureTest) {
 154   GURL url("http://example.com/this-should-be-fetch-failure");
 155
 156   // We intentionally put no data into the bitmap to simulate a failure.
 157
 158   // Set up a delegate to wait for the callback.
 159   BitmapFetcherTestDelegate delegate(kAsyncCall);
 160
 161   BitmapFetcher fetcher(url, &delegate);
 162
 163   url_fetcher_factory_->SetFakeResponse(url,
 164                                         std::string(),
 165                                         net::HTTP_INTERNAL_SERVER_ERROR,
 166                                         net::URLRequestStatus::FAILED);
 167
 168   fetcher.Start(
 169       browser()->profile()->GetRequestContext(),
 170       std::string(),
 171       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
 172       net::LOAD_NORMAL);
 173
 174   // Blocks until test delegate is notified via a callback.
 175   delegate.Wait();
 176
 177   EXPECT_FALSE(delegate.success());
 178 }
 179
 180 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, HandleImageFailedTest) {
 181   GURL url("http://example.com/this-should-be-a-decode-failure");
 182   BitmapFetcherTestDelegate delegate(kAsyncCall);
 183   BitmapFetcher fetcher(url, &delegate);
 184   url_fetcher_factory_->SetFakeResponse(url,
 185                                         std::string("Not a real bitmap"),
 186                                         net::HTTP_OK,
 187                                         net::URLRequestStatus::SUCCESS);
 188
 189   fetcher.Start(
 190       browser()->profile()->GetRequestContext(),
 191       std::string(),
 192       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
 193       net::LOAD_NORMAL);
 194
 195   // Blocks until test delegate is notified via a callback.
 196   delegate.Wait();
 197
 198   EXPECT_FALSE(delegate.success());
 199 }
 200
 201 }  // namespace chrome