Loading: split tests depend on FontResource to loader/resource/FontResourceTest

third_party/WebKit/Source/core/loader/resource/FontResourceTest.cpp

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/fetch/FontResource.h"
+
+#include "core/fetch/FetchInitiatorInfo.h"
+#include "core/fetch/FetchRequest.h"
+#include "core/fetch/MemoryCache.h"
+#include "core/fetch/MockFetchContext.h"
+#include "core/fetch/MockResourceClients.h"
+#include "core/fetch/ResourceFetcher.h"
+#include "core/fetch/ResourceLoader.h"
+#include "platform/exported/WrappedResourceResponse.h"
+#include "platform/network/ResourceError.h"
+#include "platform/network/ResourceRequest.h"
+#include "platform/weborigin/KURL.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebURLLoaderMockFactory.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace blink {
+
+class FontResourceTest : public ::testing::Test {};
+
+// Tests if ResourceFetcher works fine with FontResource that requires defered
+// loading supports.
+TEST_F(FontResourceTest,
+       ResourceFetcherRevalidateDeferedResourceFromTwoInitiators) {
+  KURL url(ParsedURLString, "http://127.0.0.1:8000/font.woff");
+  ResourceResponse response;
+  response.setURL(url);
+  response.setHTTPStatusCode(200);
+  response.setHTTPHeaderField(HTTPNames::ETag, "1234567890");
+  Platform::current()->getURLLoaderMockFactory()->registerURL(
+      url, WrappedResourceResponse(response), "");
+
+  MockFetchContext* context =
+      MockFetchContext::create(MockFetchContext::kShouldLoadNewResource);
+  ResourceFetcher* fetcher = ResourceFetcher::create(context);
+
+  // Fetch to cache a resource.
+  ResourceRequest request1(url);
+  FetchRequest fetchRequest1 = FetchRequest(request1, FetchInitiatorInfo());
+  Resource* resource1 = FontResource::fetch(fetchRequest1, fetcher);
+  ASSERT_TRUE(resource1);
+  fetcher->startLoad(resource1);
+  Platform::current()->getURLLoaderMockFactory()->serveAsynchronousRequests();
+  EXPECT_TRUE(resource1->isLoaded());
+  EXPECT_FALSE(resource1->errorOccurred());
+
+  // Set the context as it is on reloads.
+  context->setLoadComplete(true);
+  context->setCachePolicy(CachePolicyRevalidate);
+
+  // Revalidate the resource.
+  ResourceRequest request2(url);
+  FetchRequest fetchRequest2 = FetchRequest(request2, FetchInitiatorInfo());
+  Resource* resource2 = FontResource::fetch(fetchRequest2, fetcher);
+  ASSERT_TRUE(resource2);
+  EXPECT_EQ(resource1, resource2);
+  EXPECT_TRUE(resource2->isCacheValidator());
+  EXPECT_TRUE(resource2->stillNeedsLoad());
+
+  // Fetch the same resource again before actual load operation starts.
+  ResourceRequest request3(url);
+  FetchRequest fetchRequest3 = FetchRequest(request3, FetchInitiatorInfo());
+  Resource* resource3 = FontResource::fetch(fetchRequest3, fetcher);
+  ASSERT_TRUE(resource3);
+  EXPECT_EQ(resource2, resource3);
+  EXPECT_TRUE(resource3->isCacheValidator());
+  EXPECT_TRUE(resource3->stillNeedsLoad());
+
+  // startLoad() can be called from any initiator. Here, call it from the
+  // latter.
+  fetcher->startLoad(resource3);
+  Platform::current()->getURLLoaderMockFactory()->serveAsynchronousRequests();
+  EXPECT_TRUE(resource3->isLoaded());
+  EXPECT_FALSE(resource3->errorOccurred());
+  EXPECT_TRUE(resource2->isLoaded());
+  EXPECT_FALSE(resource2->errorOccurred());
+
+  memoryCache()->remove(resource1);
+}
+
+TEST_F(FontResourceTest, CacheAwareFontLoading) {
+  KURL url(ParsedURLString, "http://127.0.0.1:8000/font.woff");
+  ResourceResponse response;
+  response.setURL(url);
+  response.setHTTPStatusCode(200);
+  Platform::current()->getURLLoaderMockFactory()->registerURL(
+      url, WrappedResourceResponse(response), "");
+
+  ResourceFetcher* fetcher = ResourceFetcher::create(
+      MockFetchContext::create(MockFetchContext::kShouldLoadNewResource));
+
+  FetchRequest fetchRequest = FetchRequest(url, FetchInitiatorInfo());
+  fetchRequest.setCacheAwareLoadingEnabled(IsCacheAwareLoadingEnabled);
+  FontResource* resource = FontResource::fetch(fetchRequest, fetcher);
+  ASSERT_TRUE(resource);
+
+  Persistent<MockFontResourceClient> client =
+      new MockFontResourceClient(resource);
+  fetcher->startLoad(resource);
+  EXPECT_TRUE(resource->loader()->isCacheAwareLoadingActivated());
+  resource->m_loadLimitState = FontResource::UnderLimit;
+
+  // FontResource callbacks should be blocked during cache-aware loading.
+  resource->fontLoadShortLimitCallback(nullptr);
+  EXPECT_FALSE(client->fontLoadShortLimitExceededCalled());
+
+  // Fail first request as disk cache miss.
+  resource->loader()->didFail(ResourceError::cacheMissError(url));
+
+  // Once cache miss error returns, previously blocked callbacks should be
+  // called immediately.
+  EXPECT_FALSE(resource->loader()->isCacheAwareLoadingActivated());
+  EXPECT_TRUE(client->fontLoadShortLimitExceededCalled());
+  EXPECT_FALSE(client->fontLoadLongLimitExceededCalled());
+
+  // Add client now, fontLoadShortLimitExceeded() should be called.
+  Persistent<MockFontResourceClient> client2 =
+      new MockFontResourceClient(resource);
+  EXPECT_TRUE(client2->fontLoadShortLimitExceededCalled());
+  EXPECT_FALSE(client2->fontLoadLongLimitExceededCalled());
+
+  // FontResource callbacks are not blocked now.
+  resource->fontLoadLongLimitCallback(nullptr);
+  EXPECT_TRUE(client->fontLoadLongLimitExceededCalled());
+
+  // Add client now, both callbacks should be called.
+  Persistent<MockFontResourceClient> client3 =
+      new MockFontResourceClient(resource);
+  EXPECT_TRUE(client3->fontLoadShortLimitExceededCalled());
+  EXPECT_TRUE(client3->fontLoadLongLimitExceededCalled());
+
+  Platform::current()->getURLLoaderMockFactory()->serveAsynchronousRequests();
+  Platform::current()->getURLLoaderMockFactory()->unregisterURL(url);
+  memoryCache()->remove(resource);
+}
+
+}  // namespace blink