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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/offline_pages/offline_page_navigation_throttle.h"
#include <memory>
#include "base/test/metrics/histogram_tester.h"
#include "content/public/test/mock_navigation_handle.h"
#include "content/public/test/mock_navigation_throttle_registry.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace offline_pages {
namespace {
class OfflinePageNavigationThrottleTest : public testing::Test {
public:
void SetUp() override {
histogram_tester_ = std::make_unique<base::HistogramTester>();
}
base::HistogramTester* histogram_tester() { return histogram_tester_.get(); }
// Creates a MockNavigationHandle and configures it based on the input param
std::unique_ptr<content::MockNavigationHandle> MakeMockNavigationHandle(
bool is_renderer_initiated,
bool has_offline_headers) {
std::unique_ptr<content::MockNavigationHandle> navigation_handle =
std::make_unique<content::MockNavigationHandle>();
navigation_handle->set_is_renderer_initiated(is_renderer_initiated);
net::HttpRequestHeaders request_headers;
if (has_offline_headers) {
request_headers.SetHeader(
"X-Chrome-offline",
"persist=1 reason=file_url_intent intent_url=not_a_real_file");
}
navigation_handle->set_request_headers(request_headers);
return navigation_handle;
}
// Create a NavigationThrottleRegistry and configure it with the
// MockNavigationHandle
std::unique_ptr<content::MockNavigationThrottleRegistry>
MakeMockNavigationThrottleRegistry(
content::MockNavigationHandle* navigation_handle) {
return std::make_unique<content::MockNavigationThrottleRegistry>(
navigation_handle,
content::MockNavigationThrottleRegistry::RegistrationMode::kHold);
}
private:
std::unique_ptr<base::HistogramTester> histogram_tester_;
};
TEST_F(OfflinePageNavigationThrottleTest, CancelOfflineRequestFromRenderer) {
std::unique_ptr<content::MockNavigationHandle> navigation_handle =
MakeMockNavigationHandle(/*is_renderer_initiated=*/true,
/*has_offline_headers=*/true);
std::unique_ptr<content::MockNavigationThrottleRegistry>
navigation_throttle_registry =
MakeMockNavigationThrottleRegistry(navigation_handle.get());
OfflinePageNavigationThrottle::MaybeCreateAndAdd(
*navigation_throttle_registry);
// Checks that a non-null OfflinePageNavigationThrottle was created, and a
// value of true was logged to UMA.
ASSERT_EQ(navigation_throttle_registry->throttles().size(), 1u);
histogram_tester()->ExpectUniqueSample(
kOfflinePagesDidNavigationThrottleCancelNavigation, true, 1);
// Ensure that the created throttle specifies to cancel and ignore the
// navigation request.
content::NavigationThrottle::ThrottleCheckResult throttle_check_result =
navigation_throttle_registry->throttles().back()->WillStartRequest();
EXPECT_EQ(throttle_check_result.action(),
content::NavigationThrottle::CANCEL_AND_IGNORE);
}
TEST_F(OfflinePageNavigationThrottleTest, AllowOfflineRequestFromBrowser) {
std::unique_ptr<content::MockNavigationHandle> navigation_handle =
MakeMockNavigationHandle(/*is_renderer_initiated=*/false,
/*has_offline_headers=*/true);
std::unique_ptr<content::MockNavigationThrottleRegistry>
navigation_throttle_registry =
MakeMockNavigationThrottleRegistry(navigation_handle.get());
OfflinePageNavigationThrottle::MaybeCreateAndAdd(
*navigation_throttle_registry);
// Checks that a OfflinePageNavigationThrottle wasn't created and instead a
// nullptr was returned. Additionally checks that a value of false was logged
// to UMA.
EXPECT_EQ(navigation_throttle_registry->throttles().size(), 0u);
histogram_tester()->ExpectUniqueSample(
kOfflinePagesDidNavigationThrottleCancelNavigation, false, 1);
}
TEST_F(OfflinePageNavigationThrottleTest, AllowRegularRequestFromRenderer) {
std::unique_ptr<content::MockNavigationHandle> navigation_handle =
MakeMockNavigationHandle(/*is_renderer_initiated=*/true,
/*has_offline_headers=*/false);
std::unique_ptr<content::MockNavigationThrottleRegistry>
navigation_throttle_registry =
MakeMockNavigationThrottleRegistry(navigation_handle.get());
OfflinePageNavigationThrottle::MaybeCreateAndAdd(
*navigation_throttle_registry);
// Checks that a OfflinePageNavigationThrottle wasn't created and instead a
// nullptr was returned. Additionally checks that a value of false was logged
// to UMA.
EXPECT_EQ(navigation_throttle_registry->throttles().size(), 0u);
histogram_tester()->ExpectUniqueSample(
kOfflinePagesDidNavigationThrottleCancelNavigation, false, 1);
}
TEST_F(OfflinePageNavigationThrottleTest, AllowRegularRequestFromBrowser) {
std::unique_ptr<content::MockNavigationHandle> navigation_handle =
MakeMockNavigationHandle(/*is_renderer_initiated=*/false,
/*has_offline_headers=*/false);
std::unique_ptr<content::MockNavigationThrottleRegistry>
navigation_throttle_registry =
MakeMockNavigationThrottleRegistry(navigation_handle.get());
OfflinePageNavigationThrottle::MaybeCreateAndAdd(
*navigation_throttle_registry);
// Checks that a OfflinePageNavigationThrottle wasn't created and instead a
// nullptr was returned. Additionally checks that a value of false was logged
// to UMA.
EXPECT_EQ(navigation_throttle_registry->throttles().size(), 0u);
histogram_tester()->ExpectUniqueSample(
kOfflinePagesDidNavigationThrottleCancelNavigation, false, 1);
}
} // namespace
} // namespace offline_pages
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