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   virtual void OnFetchComplete() OVERRIDE {
  19     on_fetch_complete_called_ = true;
  20   }
  21   bool on_fetch_complete_called_;
  22 };
  23
  24 }  // namespace.
  25
  26 namespace chrome {
  27
  28 typedef testing::Test ImageHolderTest;
  29
  30 TEST_F(ImageHolderTest, CreateBitmapFetcherTest) {
  31   TestDelegate delegate;
  32   ImageHolder image_holder(GURL(kIconUrl1), GURL(kIconUrl2), NULL, &delegate);
  33
  34   EXPECT_EQ(GURL(kIconUrl1), image_holder.fetchers_[0]->url());
  35   EXPECT_EQ(GURL(kIconUrl2), image_holder.fetchers_[1]->url());
  36   EXPECT_EQ(static_cast<unsigned int>(2), image_holder.fetchers_.size());
  37
  38   // Adding a dup of an existing URL shouldn't change anything.
  39   image_holder.CreateBitmapFetcher(GURL(kIconUrl2));
  40   EXPECT_EQ(GURL(kIconUrl1), image_holder.fetchers_[0]->url());
  41   EXPECT_EQ(GURL(kIconUrl2), image_holder.fetchers_[1]->url());
  42   EXPECT_EQ(static_cast<unsigned int>(2), image_holder.fetchers_.size());
  43 }
  44
  45 TEST_F(ImageHolderTest, OnFetchCompleteTest) {
  46   TestDelegate delegate;
  47   ImageHolder image_holder(GURL(kIconUrl1), GURL(), NULL, &delegate);
  48
  49   // Put a real bitmap into "bitmap".  2x2 bitmap of green 32 bit pixels.
  50   SkBitmap bitmap;
  51   bitmap.allocN32Pixels(2, 2);
  52   bitmap.eraseColor(SK_ColorGREEN);
  53
  54   image_holder.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  55
  56   // Expect that the app icon has some data in it.
  57   EXPECT_FALSE(image_holder.low_dpi_image().IsEmpty());
  58
  59   // Expect that we reported the fetch done to the delegate.
  60   EXPECT_TRUE(delegate.on_fetch_complete_called_);
  61 }
  62
  63 TEST_F(ImageHolderTest, IsFetchingDoneTest) {
  64   TestDelegate delegate;
  65   ImageHolder image_holder1(GURL(kIconUrl1), GURL(kIconUrl2), NULL, &delegate);
  66   ImageHolder image_holder2(GURL(kIconUrl1), GURL(), NULL, &delegate);
  67   ImageHolder image_holder3(GURL(), GURL(kIconUrl2), NULL, &delegate);
  68   ImageHolder image_holder4(GURL(), GURL(), NULL, &delegate);
  69
  70   // Initially, image holder 4 with no URLs should report done, but no others.
  71   EXPECT_FALSE(image_holder1.IsFetchingDone());
  72   EXPECT_FALSE(image_holder2.IsFetchingDone());
  73   EXPECT_FALSE(image_holder3.IsFetchingDone());
  74   EXPECT_TRUE(image_holder4.IsFetchingDone());
  75
  76   // Put a real bitmap into "bitmap".  2x2 bitmap of green 32 bit pixels.
  77   SkBitmap bitmap;
  78   bitmap.allocN32Pixels(2, 2);
  79   bitmap.eraseColor(SK_ColorGREEN);
  80
  81   // Add the first icon, and image holder 2 should now also report done.
  82   image_holder1.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  83   image_holder2.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  84   image_holder3.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  85   image_holder4.OnFetchComplete(GURL(kIconUrl1), &bitmap);
  86   EXPECT_FALSE(image_holder1.IsFetchingDone());
  87   EXPECT_TRUE(image_holder2.IsFetchingDone());
  88   EXPECT_FALSE(image_holder3.IsFetchingDone());
  89   EXPECT_TRUE(image_holder4.IsFetchingDone());
  90
  91   // Add the second image, and now all 4 should report done.
  92   image_holder1.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  93   image_holder2.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  94   image_holder3.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  95   image_holder4.OnFetchComplete(GURL(kIconUrl2), &bitmap);
  96   EXPECT_TRUE(image_holder1.IsFetchingDone());
  97   EXPECT_TRUE(image_holder2.IsFetchingDone());
  98   EXPECT_TRUE(image_holder3.IsFetchingDone());
  99   EXPECT_TRUE(image_holder4.IsFetchingDone());
 100 }
 101
 102 }  // namespace chrome.