src/chrome/browser/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.h"
   6
   7 #include "base/compiler_specific.h"
   8 #include "chrome/browser/ui/browser.h"
   9 #include "chrome/test/base/in_process_browser_test.h"
  10 #include "content/public/test/test_utils.h"
  11 #include "net/http/http_status_code.h"
  12 #include "net/url_request/test_url_fetcher_factory.h"
  13 #include "net/url_request/url_fetcher.h"
  14 #include "net/url_request/url_request_status.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16 #include "third_party/skia/include/core/SkBitmap.h"
  17 #include "ui/gfx/codec/png_codec.h"
  18 #include "ui/gfx/size.h"
  19 #include "ui/gfx/skia_util.h"
  20
  21 namespace {
  22 const bool kAsyncCall = true;
  23 const bool kSyncCall = false;
  24 }  // namespace
  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)
  32       : called_(false), success_(false), async_(async) {}
  33
  34   virtual ~BitmapFetcherTestDelegate() { EXPECT_TRUE(called_); }
  35
  36   // Method inherited from BitmapFetcherDelegate.
  37   virtual void OnFetchComplete(const GURL url,
  38                                const SkBitmap* bitmap) OVERRIDE {
  39     called_ = true;
  40     url_ = url;
  41     if (NULL != bitmap) {
  42       success_ = true;
  43       bitmap->deepCopyTo(&bitmap_);
  44     }
  45     // For async calls, we need to quit the message loop so the test can
  46     // continue.
  47     if (async_) {
  48       base::MessageLoop::current()->Quit();
  49     }
  50   }
  51
  52   GURL url() const { return url_; }
  53   bool success() const { return success_; }
  54   const SkBitmap& bitmap() const { return bitmap_; }
  55
  56  private:
  57   bool called_;
  58   GURL url_;
  59   bool success_;
  60   bool async_;
  61   SkBitmap bitmap_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(BitmapFetcherTestDelegate);
  64 };
  65
  66 class BitmapFetcherBrowserTest : public InProcessBrowserTest {
  67  public:
  68   virtual void SetUp() OVERRIDE {
  69     url_fetcher_factory_.reset(new net::FakeURLFetcherFactory(NULL));
  70     InProcessBrowserTest::SetUp();
  71   }
  72
  73  protected:
  74   scoped_ptr<net::FakeURLFetcherFactory> url_fetcher_factory_;
  75 };
  76
  77 #if defined(OS_WIN)
  78 #define MAYBE_StartTest DISABLED_StartTest
  79 #else
  80 #define MAYBE_StartTest StartTest
  81 #endif
  82
  83 // WARNING:  These tests work with --single_process, but not
  84 // --single-process.  The reason is that the sandbox does not get created
  85 // for us by the test process if --single-process is used.
  86
  87 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, MAYBE_StartTest) {
  88   GURL url("http://example.com/this-should-work");
  89
  90   // Put some realistic looking bitmap data into the url_fetcher.
  91   SkBitmap image;
  92
  93   // Put a real bitmap into "image".  2x2 bitmap of green 32 bit pixels.
  94   image.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
  95   image.allocPixels();
  96   image.eraseColor(SK_ColorGREEN);
  97
  98   // Encode the bits as a PNG.
  99   std::vector<unsigned char> compressed;
 100   ASSERT_TRUE(gfx::PNGCodec::EncodeBGRASkBitmap(image, true, &compressed));
 101
 102   // Copy the bits into the string, and put them into the FakeURLFetcher.
 103   std::string image_string(compressed.begin(), compressed.end());
 104
 105   // Set up a delegate to wait for the callback.
 106   BitmapFetcherTestDelegate delegate(kAsyncCall);
 107
 108   BitmapFetcher fetcher(url, &delegate);
 109
 110   url_fetcher_factory_->SetFakeResponse(
 111       url, image_string, net::HTTP_OK, net::URLRequestStatus::SUCCESS);
 112
 113   // We expect that the image decoder will get called and return
 114   // an image in a callback to OnImageDecoded().
 115   fetcher.Start(browser()->profile());
 116
 117   // Blocks until test delegate is notified via a callback.
 118   content::RunMessageLoop();
 119
 120   ASSERT_TRUE(delegate.success());
 121
 122   // Make sure we get back the bitmap we expect.
 123   const SkBitmap& found_image = delegate.bitmap();
 124   EXPECT_TRUE(gfx::BitmapsAreEqual(image, found_image));
 125 }
 126
 127 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, OnImageDecodedTest) {
 128   GURL url("http://example.com/this-should-work-as-well");
 129   SkBitmap image;
 130
 131   // Put a real bitmap into "image".  2x2 bitmap of green 16 bit pixels.
 132   image.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
 133   image.allocPixels();
 134   image.eraseColor(SK_ColorGREEN);
 135
 136   BitmapFetcherTestDelegate delegate(kSyncCall);
 137
 138   BitmapFetcher fetcher(url, &delegate);
 139
 140   fetcher.OnImageDecoded(NULL, image);
 141
 142   // Ensure image is marked as succeeded.
 143   EXPECT_TRUE(delegate.success());
 144
 145   // Test that the image is what we expect.
 146   EXPECT_TRUE(gfx::BitmapsAreEqual(image, delegate.bitmap()));
 147 }
 148
 149 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, OnURLFetchFailureTest) {
 150   GURL url("http://example.com/this-should-be-fetch-failure");
 151
 152   // We intentionally put no data into the bitmap to simulate a failure.
 153
 154   // Set up a delegate to wait for the callback.
 155   BitmapFetcherTestDelegate delegate(kAsyncCall);
 156
 157   BitmapFetcher fetcher(url, &delegate);
 158
 159   url_fetcher_factory_->SetFakeResponse(url,
 160                                         std::string(),
 161                                         net::HTTP_INTERNAL_SERVER_ERROR,
 162                                         net::URLRequestStatus::FAILED);
 163
 164   fetcher.Start(browser()->profile());
 165
 166   // Blocks until test delegate is notified via a callback.
 167   content::RunMessageLoop();
 168
 169   EXPECT_FALSE(delegate.success());
 170 }
 171
 172 // Flaky on Win XP Debug: crbug.com/316488
 173 #if defined(OS_WIN) && !defined(NDEBUG)
 174 #define MAYBE_HandleImageFailedTest DISABLED_HandleImageFailedTest
 175 #else
 176 #define MAYBE_HandleImageFailedTest HandleImageFailedTest
 177 #endif
 178
 179 IN_PROC_BROWSER_TEST_F(BitmapFetcherBrowserTest, MAYBE_HandleImageFailedTest) {
 180   GURL url("http://example.com/this-should-be-a-decode-failure");
 181   BitmapFetcherTestDelegate delegate(kAsyncCall);
 182   BitmapFetcher fetcher(url, &delegate);
 183   url_fetcher_factory_->SetFakeResponse(url,
 184                                         std::string("Not a real bitmap"),
 185                                         net::HTTP_OK,
 186                                         net::URLRequestStatus::SUCCESS);
 187
 188   fetcher.Start(browser()->profile());
 189
 190   // Blocks until test delegate is notified via a callback.
 191   content::RunMessageLoop();
 192
 193   EXPECT_FALSE(delegate.success());
 194 }
 195
 196 }  // namespace chrome