src/third_party/WebKit/Source/core/fetch/ImageResourceTest.cpp

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  30
  31 #include "config.h"
  32 #include "core/fetch/ImageResource.h"
  33
  34 #include "core/fetch/ImageResourceClient.h"
  35 #include "core/fetch/MemoryCache.h"
  36 #include "core/fetch/MockImageResourceClient.h"
  37 #include "core/fetch/ResourceFetcher.h"
  38 #include "core/fetch/ResourcePtr.h"
  39 #include "core/loader/DocumentLoader.h"
  40 #include "core/testing/DummyPageHolder.h"
  41 #include "core/testing/UnitTestHelpers.h"
  42 #include "platform/SharedBuffer.h"
  43 #include "public/platform/Platform.h"
  44 #include "public/platform/WebURL.h"
  45 #include "public/platform/WebURLResponse.h"
  46 #include "public/platform/WebUnitTestSupport.h"
  47
  48 using namespace WebCore;
  49
  50 namespace {
  51
  52 TEST(ImageResourceTest, MultipartImage)
  53 {
  54     ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest());
  55     cachedImage->setLoading(true);
  56
  57     MockImageResourceClient client;
  58     cachedImage->addClient(&client);
  59
  60     // Send the multipart response. No image or data buffer is created.
  61     cachedImage->responseReceived(ResourceResponse(KURL(), "multipart/x-mixed-replace", 0, nullAtom, String()));
  62     ASSERT_FALSE(cachedImage->resourceBuffer());
  63     ASSERT_FALSE(cachedImage->hasImage());
  64     ASSERT_EQ(client.imageChangedCount(), 0);
  65     ASSERT_FALSE(client.notifyFinishedCalled());
  66
  67     // Send the response for the first real part. No image or data buffer is created.
  68     const char* svgData = "<svg xmlns='http://www.w3.org/2000/svg' width='1' height='1'><rect width='1' height='1' fill='green'/></svg>";
  69     unsigned svgDataLength = strlen(svgData);
  70     cachedImage->responseReceived(ResourceResponse(KURL(), "image/svg+xml", svgDataLength, nullAtom, String()));
  71     ASSERT_FALSE(cachedImage->resourceBuffer());
  72     ASSERT_FALSE(cachedImage->hasImage());
  73     ASSERT_EQ(client.imageChangedCount(), 0);
  74     ASSERT_FALSE(client.notifyFinishedCalled());
  75
  76     // The first bytes arrive. The data buffer is created, but no image is created.
  77     cachedImage->appendData(svgData, svgDataLength);
  78     ASSERT_TRUE(cachedImage->resourceBuffer());
  79     ASSERT_EQ(cachedImage->resourceBuffer()->size(), svgDataLength);
  80     ASSERT_FALSE(cachedImage->hasImage());
  81     ASSERT_EQ(client.imageChangedCount(), 0);
  82     ASSERT_FALSE(client.notifyFinishedCalled());
  83
  84     // This part finishes. The image is created, callbacks are sent, and the data buffer is cleared.
  85     cachedImage->finish();
  86     ASSERT_FALSE(cachedImage->resourceBuffer());
  87     ASSERT_FALSE(cachedImage->errorOccurred());
  88     ASSERT_TRUE(cachedImage->hasImage());
  89     ASSERT_FALSE(cachedImage->image()->isNull());
  90     ASSERT_EQ(cachedImage->image()->width(), 1);
  91     ASSERT_EQ(cachedImage->image()->height(), 1);
  92     ASSERT_EQ(client.imageChangedCount(), 2);
  93     ASSERT_TRUE(client.notifyFinishedCalled());
  94 }
  95
  96 TEST(ImageResourceTest, CancelOnDetach)
  97 {
  98     KURL testURL(ParsedURLString, "http://www.test.com/cancelTest.html");
  99
 100     blink::WebURLResponse response;
 101     response.initialize();
 102     response.setMIMEType("text/html");
 103     WTF::String localPath = String(blink::Platform::current()->unitTestSupport()->webKitRootDir()) + "/Source/web/tests/data/cancelTest.html";
 104     blink::Platform::current()->unitTestSupport()->registerMockedURL(testURL, response, localPath);
 105
 106     // Create enough of a mocked world to get a functioning ResourceLoader.
 107     OwnPtr<DummyPageHolder> dummyPageHolder = DummyPageHolder::create();
 108     RefPtr<DocumentLoader> documentLoader = DocumentLoader::create(&dummyPageHolder->frame(), ResourceRequest(testURL), SubstituteData());
 109
 110     // Emulate starting a real load.
 111     ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest(testURL));
 112     cachedImage->load(documentLoader->fetcher(), ResourceLoaderOptions());
 113     memoryCache()->add(cachedImage.get());
 114
 115     MockImageResourceClient client;
 116     cachedImage->addClient(&client);
 117     EXPECT_EQ(Resource::Pending, cachedImage->status());
 118
 119     // The load should still be alive, but a timer should be started to cancel the load inside removeClient().
 120     cachedImage->removeClient(&client);
 121     EXPECT_EQ(Resource::Pending, cachedImage->status());
 122     EXPECT_NE(reinterpret_cast<Resource*>(0), memoryCache()->resourceForURL(testURL));
 123
 124     // Trigger the cancel timer, ensure the load was cancelled and the resource was evicted from the cache.
 125     WebCore::testing::runPendingTasks();
 126     EXPECT_EQ(Resource::LoadError, cachedImage->status());
 127     EXPECT_EQ(reinterpret_cast<Resource*>(0), memoryCache()->resourceForURL(testURL));
 128
 129     blink::Platform::current()->unitTestSupport()->unregisterMockedURL(testURL);
 130 }
 131
 132 TEST(ImageResourceTest, DecodedDataRemainsWhileHasClients)
 133 {
 134     ResourcePtr<ImageResource> cachedImage = new ImageResource(ResourceRequest());
 135     cachedImage->setLoading(true);
 136
 137     MockImageResourceClient client;
 138     cachedImage->addClient(&client);
 139
 140     // Send the image response.
 141     cachedImage->responseReceived(ResourceResponse(KURL(), "multipart/x-mixed-replace", 0, nullAtom, String()));
 142     static const unsigned char jpegData[] = {
 143         0xff, 0xd8, 0xff, 0xe0, 0x00, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x00, 0x01, 0x01, 0x01, 0x00,
 144         0x48, 0x00, 0x48, 0x00, 0x00, 0xff, 0xfe, 0x00, 0x13, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65,
 145         0x64, 0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x47, 0x49, 0x4d, 0x50, 0xff, 0xdb, 0x00, 0x43,
 146         0x00, 0x05, 0x03, 0x04, 0x04, 0x04, 0x03, 0x05, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x06,
 147         0x07, 0x0c, 0x08, 0x07, 0x07, 0x07, 0x07, 0x0f, 0x0b, 0x0b, 0x09, 0x0c, 0x11, 0x0f, 0x12,
 148         0x12, 0x11, 0x0f, 0x11, 0x11, 0x13, 0x16, 0x1c, 0x17, 0x13, 0x14, 0x1a, 0x15, 0x11, 0x11,
 149         0x18, 0x21, 0x18, 0x1a, 0x1d, 0x1d, 0x1f, 0x1f, 0x1f, 0x13, 0x17, 0x22, 0x24, 0x22, 0x1e,
 150         0x24, 0x1c, 0x1e, 0x1f, 0x1e, 0xff, 0xdb, 0x00, 0x43, 0x01, 0x05, 0x05, 0x05, 0x07, 0x06,
 151         0x07, 0x0e, 0x08, 0x08, 0x0e, 0x1e, 0x14, 0x11, 0x14, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
 152         0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
 153         0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
 154         0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0xff,
 155         0xc0, 0x00, 0x11, 0x08, 0x00, 0x01, 0x00, 0x01, 0x03, 0x01, 0x22, 0x00, 0x02, 0x11, 0x01,
 156         0x03, 0x11, 0x01, 0xff, 0xc4, 0x00, 0x15, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
 157         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0xff, 0xc4, 0x00, 0x14,
 158         0x10, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 159         0x00, 0x00, 0x00, 0xff, 0xc4, 0x00, 0x14, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 160         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xc4, 0x00, 0x14, 0x11,
 161         0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 162         0x00, 0x00, 0xff, 0xda, 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f,
 163         0x00, 0xb2, 0xc0, 0x07, 0xff, 0xd9
 164     };
 165
 166     unsigned jpegDataLength = sizeof(jpegData);
 167     cachedImage->responseReceived(ResourceResponse(KURL(), "image/jpeg", jpegDataLength, nullAtom, String()));
 168     cachedImage->appendData(reinterpret_cast<const char*>(jpegData), jpegDataLength);
 169     cachedImage->finish();
 170     ASSERT_FALSE(cachedImage->errorOccurred());
 171     ASSERT_TRUE(cachedImage->hasImage());
 172     ASSERT_FALSE(cachedImage->image()->isNull());
 173     ASSERT_TRUE(client.notifyFinishedCalled());
 174
 175     // The prune comes when the ImageResource still has clients. The image should not be deleted.
 176     cachedImage->prune();
 177     ASSERT_TRUE(cachedImage->hasClients());
 178     ASSERT_TRUE(cachedImage->hasImage());
 179     ASSERT_FALSE(cachedImage->image()->isNull());
 180
 181     // The ImageResource no longer has clients. The image should be deleted by prune.
 182     cachedImage->removeClient(&client);
 183     cachedImage->prune();
 184     ASSERT_FALSE(cachedImage->hasClients());
 185     ASSERT_FALSE(cachedImage->hasImage());
 186     ASSERT_TRUE(cachedImage->image()->isNull());
 187 }
 188
 189 } // namespace