src/chrome/browser/image_holder_unittest.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 <string>
   6
   7 #include "chrome/browser/image_holder.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace {
  11
  12 const char kIconUrl1[] = "http://www.google.com/icon1.jpg";
  13 const char kIconUrl2[] = "http://www.google.com/icon2.jpg";
  14
  15 class TestDelegate : public chrome::ImageHolderDelegate {
  16  public:
  17   TestDelegate() : on_fetch_complete_called_(false) {}
  18   void OnFetchComplete() override { on_fetch_complete_called_ = true; }
  19   bool on_fetch_complete_called_;
  20 };
  21
  22 }  // namespace.
  23
  24 namespace chrome {
  25
  26 typedef testing::Test ImageHolderTest;
  27
  28 TEST_F(ImageHolderTest, CreateBitmapFetcherTest) {
  29   TestDelegate delegate;
  30   ImageHolder image_holder(GURL(kIconUrl1), GURL(kIconUrl2), NULL, &delegate);
  31
  32   EXPECT_EQ(GURL(kIconUrl1), image_holder.fetchers_[0]->url());
  33   EXPECT_EQ(GURL(kIconUrl2), image_holder.fetchers_[1]->url());
  34   EXPECT_EQ(static_cast<unsigned int>(2), image_holder.fetchers_.size());
  35
  36   // Adding a dup of an existing URL shouldn't change anything.
  37   image_holder.CreateBitmapFetcher(GURL(kIconUrl2));
  38   EXPECT_EQ(GURL(kIconUrl1), image_holder.fetchers_[0]->url());
  39   EXPECT_EQ(GURL(kIconUrl2), image_holder.fetchers_[1]->url());
  40   EXPECT_EQ(static_cast<unsigned int>(2), image_holder.fetchers_.size());
  41 }
  42
  43 TEST_F(ImageHolderTest, OnFetchCompleteTest) {
  44   TestDelegate delegate;
  45   ImageHolder image_holder(GURL(kIconUrl1), GURL(), NULL, &delegate);
  46
  47   // Put a real bitmap into "bitmap".  2x2 bitmap of green 32 bit pixels.
  48   SkBitmap bitmap;
  49   bitmap.allocN32Pixels(2, 2);
  50   bitmap.eraseColor(SK_ColorGREEN);
  51
  52   image_holder.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  53
  54   // Expect that the app icon has some data in it.
  55   EXPECT_FALSE(image_holder.low_dpi_image().IsEmpty());
  56
  57   // Expect that we reported the fetch done to the delegate.
  58   EXPECT_TRUE(delegate.on_fetch_complete_called_);
  59 }
  60
  61 TEST_F(ImageHolderTest, IsFetchingDoneTest) {
  62   TestDelegate delegate;
  63   ImageHolder image_holder1(GURL(kIconUrl1), GURL(kIconUrl2), NULL, &delegate);
  64   ImageHolder image_holder2(GURL(kIconUrl1), GURL(), NULL, &delegate);
  65   ImageHolder image_holder3(GURL(), GURL(kIconUrl2), NULL, &delegate);
  66   ImageHolder image_holder4(GURL(), GURL(), NULL, &delegate);
  67
  68   // Initially, image holder 4 with no URLs should report done, but no others.
  69   EXPECT_FALSE(image_holder1.IsFetchingDone());
  70   EXPECT_FALSE(image_holder2.IsFetchingDone());
  71   EXPECT_FALSE(image_holder3.IsFetchingDone());
  72   EXPECT_TRUE(image_holder4.IsFetchingDone());
  73
  74   // Put a real bitmap into "bitmap".  2x2 bitmap of green 32 bit pixels.
  75   SkBitmap bitmap;
  76   bitmap.allocN32Pixels(2, 2);
  77   bitmap.eraseColor(SK_ColorGREEN);
  78
  79   // Add the first icon, and image holder 2 should now also report done.
  80   image_holder1.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  81   image_holder2.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  82   image_holder3.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  83   image_holder4.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  84   EXPECT_FALSE(image_holder1.IsFetchingDone());
  85   EXPECT_TRUE(image_holder2.IsFetchingDone());
  86   EXPECT_FALSE(image_holder3.IsFetchingDone());
  87   EXPECT_TRUE(image_holder4.IsFetchingDone());
  88
  89   // Add the second image, and now all 4 should report done.
  90   image_holder1.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  91   image_holder2.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  92   image_holder3.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  93   image_holder4.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  94   EXPECT_TRUE(image_holder1.IsFetchingDone());
  95   EXPECT_TRUE(image_holder2.IsFetchingDone());
  96   EXPECT_TRUE(image_holder3.IsFetchingDone());
  97   EXPECT_TRUE(image_holder4.IsFetchingDone());
  98 }
  99
 100 }  // namespace chrome.