TEST(ImageResourceTest, DecodedDataRemainsWhileHasClients)
{
ImageResource* cachedImage = ImageResource::create(ResourceRequest());
cachedImage->setStatus(Resource::Pending);
Persistent<MockImageResourceClient> client = new MockImageResourceClient(cachedImage);
// Send the image response.
cachedImage->responseReceived(ResourceResponse(KURL(), "multipart/x-mixed-replace", 0, nullAtom, String()), nullptr);
Vector<unsigned char> jpeg = jpegImage();
cachedImage->responseReceived(ResourceResponse(KURL(), "image/jpeg", jpeg.size(), nullAtom, String()), nullptr);
cachedImage->appendData(reinterpret_cast<const char*>(jpeg.data()), jpeg.size());
cachedImage->finish();
ASSERT_FALSE(cachedImage->errorOccurred());
ASSERT_TRUE(cachedImage->hasImage());
ASSERT_FALSE(cachedImage->getImage()->isNull());
ASSERT_TRUE(client->notifyFinishedCalled());
// The prune comes when the ImageResource still has clients. The image should not be deleted.
cachedImage->prune();
ASSERT_TRUE(cachedImage->hasClientsOrObservers());
ASSERT_TRUE(cachedImage->hasImage());
ASSERT_FALSE(cachedImage->getImage()->isNull());
// The ImageResource no longer has clients. The image should be deleted by prune.
client->removeAsClient();
cachedImage->prune();
ASSERT_FALSE(cachedImage->hasClientsOrObservers());
ASSERT_FALSE(cachedImage->hasImage());
ASSERT_TRUE(cachedImage->getImage()->isNull());
}
TEST(ImageResourceTest, CancelOnDetach) {
KURL testURL(ParsedURLString, "http://www.test.com/cancelTest.html");
ScopedRegisteredURL scopedRegisteredURL(testURL);
ResourceFetcher* fetcher =
ResourceFetcher::create(ImageResourceTestMockFetchContext::create());
// Emulate starting a real load.
ImageResource* cachedImage = ImageResource::create(ResourceRequest(testURL));
cachedImage->setIdentifier(createUniqueIdentifier());
fetcher->startLoad(cachedImage);
memoryCache()->add(cachedImage);
Persistent<MockImageResourceClient> client =
new MockImageResourceClient(cachedImage);
EXPECT_EQ(Resource::Pending, cachedImage->getStatus());
// The load should still be alive, but a timer should be started to cancel the
// load inside removeClient().
client->removeAsClient();
EXPECT_EQ(Resource::Pending, cachedImage->getStatus());
EXPECT_TRUE(memoryCache()->resourceForURL(testURL));
// Trigger the cancel timer, ensure the load was cancelled and the resource
// was evicted from the cache.
blink::testing::runPendingTasks();
EXPECT_EQ(Resource::LoadError, cachedImage->getStatus());
EXPECT_FALSE(memoryCache()->resourceForURL(testURL));
}
TEST(ImageResourceTest, CancelOnDetach)
{
KURL testURL(ParsedURLString, "http://www.test.com/cancelTest.html");
URLTestHelpers::registerMockedURLLoad(testURL, "cancelTest.html", "text/html");
ResourceFetcher* fetcher = ResourceFetcher::create(ImageResourceTestMockFetchContext::create());
// Emulate starting a real load.
ImageResource* cachedImage = ImageResource::create(ResourceRequest(testURL));
cachedImage->setIdentifier(createUniqueIdentifier());
fetcher->startLoad(cachedImage);
memoryCache()->add(cachedImage);
Persistent<MockImageResourceClient> client = new MockImageResourceClient(cachedImage);
EXPECT_EQ(Resource::Pending, cachedImage->getStatus());
// The load should still be alive, but a timer should be started to cancel the load inside removeClient().
client->removeAsClient();
EXPECT_EQ(Resource::Pending, cachedImage->getStatus());
EXPECT_NE(reinterpret_cast<Resource*>(0), memoryCache()->resourceForURL(testURL));
// Trigger the cancel timer, ensure the load was cancelled and the resource was evicted from the cache.
blink::testing::runPendingTasks();
EXPECT_EQ(Resource::LoadError, cachedImage->getStatus());
EXPECT_EQ(reinterpret_cast<Resource*>(0), memoryCache()->resourceForURL(testURL));
Platform::current()->getURLLoaderMockFactory()->unregisterURL(testURL);
}