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// Copyright 2015 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 "third_party/blink/renderer/core/html/parser/html_resource_preloader.h"
#include <memory>
#include <utility>
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/web_prescient_networking.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/html/parser/preload_request.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
namespace blink {
struct HTMLResourcePreconnectTestCase {
const char* base_url;
const char* url;
bool is_cors;
bool is_https;
};
class PreloaderNetworkHintsMock : public WebPrescientNetworking {
public:
PreloaderNetworkHintsMock() : did_preconnect_(false) {}
void PrefetchDNS(const WebString& hostname) override {}
void Preconnect(const WebURL& url, bool allow_credentials) override {
did_preconnect_ = true;
is_https_ = url.ProtocolIs("https");
allow_credentials_ = allow_credentials;
}
bool DidPreconnect() { return did_preconnect_; }
bool IsHTTPS() { return is_https_; }
bool AllowCredentials() { return allow_credentials_; }
private:
mutable bool did_preconnect_;
mutable bool is_https_;
mutable bool allow_credentials_;
};
class HTMLResourcePreloaderTest : public PageTestBase {
protected:
void SetUp() override {
PageTestBase::SetUp(IntSize());
GetFrame().SetPrescientNetworkingForTesting(
std::make_unique<PreloaderNetworkHintsMock>());
mock_network_hints_ = static_cast<PreloaderNetworkHintsMock*>(
GetFrame().PrescientNetworking());
}
void Test(HTMLResourcePreconnectTestCase test_case) {
// TODO(yoav): Need a mock loader here to verify things are happenning
// beyond preconnect.
auto preload_request = PreloadRequest::CreateIfNeeded(
String(), TextPosition(), test_case.url, KURL(test_case.base_url),
ResourceType::kImage, network::mojom::ReferrerPolicy(),
PreloadRequest::kDocumentIsReferrer, ResourceFetcher::kImageNotImageSet,
FetchParameters::ResourceWidth(), ClientHintsPreferences(),
PreloadRequest::kRequestTypePreconnect);
DCHECK(preload_request);
if (test_case.is_cors)
preload_request->SetCrossOrigin(kCrossOriginAttributeAnonymous);
auto* preloader =
MakeGarbageCollected<HTMLResourcePreloader>(GetDocument());
preloader->Preload(std::move(preload_request));
ASSERT_TRUE(mock_network_hints_->DidPreconnect());
ASSERT_NE(test_case.is_cors, mock_network_hints_->AllowCredentials());
ASSERT_EQ(test_case.is_https, mock_network_hints_->IsHTTPS());
}
PreloaderNetworkHintsMock* mock_network_hints_ = nullptr;
};
TEST_F(HTMLResourcePreloaderTest, testPreconnect) {
HTMLResourcePreconnectTestCase test_cases[] = {
{"http://example.test", "http://example.com", false, false},
{"http://example.test", "http://example.com", true, false},
{"http://example.test", "https://example.com", true, true},
{"http://example.test", "https://example.com", false, true},
{"http://example.test", "//example.com", false, false},
{"http://example.test", "//example.com", true, false},
{"https://example.test", "//example.com", false, true},
{"https://example.test", "//example.com", true, true},
};
for (const auto& test_case : test_cases)
Test(test_case);
}
} // namespace blink
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