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/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   virtual ~BitmapFetcherTestDelegate() {
  36     EXPECT_TRUE(called_);
  37   }
  38
  39   // Method inherited from BitmapFetcherDelegate.
  40   virtual void OnFetchComplete(const GURL url,
  41                                const SkBitmap* bitmap) OVERRIDE {
  42     called_ = true;
  43     url_ = url;
  44     if (bitmap) {
  45       success_ = true;
  46       bitmap->deepCopyTo(&bitmap_);
  47     }
  48     // For async calls, we need to quit the run loop so the test can continue.
  49     if (async_)
  50       run_loop_.Quit();
  51   }
  52
  53   // Waits until OnFetchComplete() is called. Should only be used for
  54   // async tests.
  55   void Wait() {
  56     ASSERT_TRUE(async_);
  57     run_loop_.Run();
  58   }
  59
  60   GURL url() const { return url_; }
  61   bool success() const { return success_; }
  62   const SkBitmap& bitmap() const { return bitmap_; }
  63
  64  private:
  65   base::RunLoop run_loop_;
  66   bool called_;
  67   GURL url_;
  68   bool success_;
  69   bool async_;
  70   SkBitmap bitmap_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(BitmapFetcherTestDelegate);
  73 };
  74
  75 class BitmapFetcherBrowserTest : public InProcessBrowserTest {
  76  public:
  77   virtual void SetUp() OVERRIDE {
  78     url_fetcher_factory_.reset(
  79         new net::FakeURLFetcherFactory(&url_fetcher_impl_factory_));
  80     InProcessBrowserTest::SetUp();
  81   }
  82
  83  protected:
  84   net::URLFetcherImplFactory url_fetcher_impl_factory_;
  85   scoped_ptr<net::FakeURLFetcherFactory> url_fetcher_factory_;
  86 };
  87
  88 // WARNING:  These tests work with --single_process, but not
  89 // --single-process.  The reason is that the sandbox does not get created
  90 // for us by the test process if --single-process is used.
  91
  92 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, StartTest) {
  93   GURL url("http://example.com/this-should-work");
  94
  95   // Put some realistic looking bitmap data into the url_fetcher.
  96   SkBitmap image;
  97
  98   // Put a real bitmap into "image".  2x2 bitmap of green 32 bit pixels.
  99   image.allocN32Pixels(2, 2);
 100   image.eraseColor(SK_ColorGREEN);
 101
 102   // Encode the bits as a PNG.
 103   std::vector<unsigned char> compressed;
 104   ASSERT_TRUE(gfx::PNGCodec::EncodeBGRASkBitmap(image, true, &compressed));
 105
 106   // Copy the bits into the string, and put them into the FakeURLFetcher.
 107   std::string image_string(compressed.begin(), compressed.end());
 108
 109   // Set up a delegate to wait for the callback.
 110   BitmapFetcherTestDelegate delegate(kAsyncCall);
 111
 112   BitmapFetcher fetcher(url, &delegate);
 113
 114   url_fetcher_factory_->SetFakeResponse(
 115       url, image_string, net::HTTP_OK, net::URLRequestStatus::SUCCESS);
 116
 117   // We expect that the image decoder will get called and return
 118   // an image in a callback to OnImageDecoded().
 119   fetcher.Start(
 120       browser()->profile()->GetRequestContext(),
 121       std::string(),
 122       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
 123       net::LOAD_NORMAL);
 124
 125   // Blocks until test delegate is notified via a callback.
 126   delegate.Wait();
 127
 128   ASSERT_TRUE(delegate.success());
 129
 130   // Make sure we get back the bitmap we expect.
 131   const SkBitmap& found_image = delegate.bitmap();
 132   EXPECT_TRUE(gfx::BitmapsAreEqual(image, found_image));
 133 }
 134
 135 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, OnImageDecodedTest) {
 136   GURL url("http://example.com/this-should-work-as-well");
 137   SkBitmap image;
 138
 139   // Put a real bitmap into "image".  2x2 bitmap of green 16 bit pixels.
 140   image.allocN32Pixels(2, 2);
 141   image.eraseColor(SK_ColorGREEN);
 142
 143   BitmapFetcherTestDelegate delegate(kSyncCall);
 144
 145   BitmapFetcher fetcher(url, &delegate);
 146
 147   fetcher.OnImageDecoded(NULL, image);
 148
 149   // Ensure image is marked as succeeded.
 150   EXPECT_TRUE(delegate.success());
 151
 152   // Test that the image is what we expect.
 153   EXPECT_TRUE(gfx::BitmapsAreEqual(image, delegate.bitmap()));
 154 }
 155
 156 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, OnURLFetchFailureTest) {
 157   GURL url("http://example.com/this-should-be-fetch-failure");
 158
 159   // We intentionally put no data into the bitmap to simulate a failure.
 160
 161   // Set up a delegate to wait for the callback.
 162   BitmapFetcherTestDelegate delegate(kAsyncCall);
 163
 164   BitmapFetcher fetcher(url, &delegate);
 165
 166   url_fetcher_factory_->SetFakeResponse(url,
 167                                         std::string(),
 168                                         net::HTTP_INTERNAL_SERVER_ERROR,
 169                                         net::URLRequestStatus::FAILED);
 170
 171   fetcher.Start(
 172       browser()->profile()->GetRequestContext(),
 173       std::string(),
 174       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
 175       net::LOAD_NORMAL);
 176
 177   // Blocks until test delegate is notified via a callback.
 178   delegate.Wait();
 179
 180   EXPECT_FALSE(delegate.success());
 181 }
 182
 183 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, HandleImageFailedTest) {
 184   GURL url("http://example.com/this-should-be-a-decode-failure");
 185   BitmapFetcherTestDelegate delegate(kAsyncCall);
 186   BitmapFetcher fetcher(url, &delegate);
 187   url_fetcher_factory_->SetFakeResponse(url,
 188                                         std::string("Not a real bitmap"),
 189                                         net::HTTP_OK,
 190                                         net::URLRequestStatus::SUCCESS);
 191
 192   fetcher.Start(
 193       browser()->profile()->GetRequestContext(),
 194       std::string(),
 195       net::URLRequest::CLEAR_REFERRER_ON_TRANSITION_FROM_SECURE_TO_INSECURE,
 196       net::LOAD_NORMAL);
 197
 198   // Blocks until test delegate is notified via a callback.
 199   delegate.Wait();
 200
 201   EXPECT_FALSE(delegate.success());
 202 }
 203
 204 }  // namespace chrome