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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/preloading/prefetch/contamination_delay_navigation_throttle.h"
#include "base/functional/bind.h"
#include "content/public/test/navigation_simulator.h"
#include "content/public/test/test_renderer_host.h"
#include "content/test/navigation_simulator_impl.h"
namespace content {
namespace {
void SetTestLoadTiming(network::mojom::URLResponseHead& response,
base::Time start,
base::TimeTicks start_ticks) {
response.request_time = start;
response.response_time = start + base::Milliseconds(1050);
response.load_timing.request_start = start_ticks;
response.load_timing.connect_timing.domain_lookup_start = start_ticks;
response.load_timing.connect_timing.domain_lookup_end =
start_ticks + base::Milliseconds(100);
response.load_timing.connect_timing.connect_start =
start_ticks + base::Milliseconds(100);
response.load_timing.connect_timing.ssl_start =
start_ticks + base::Milliseconds(300);
response.load_timing.connect_timing.ssl_end =
start_ticks + base::Milliseconds(500);
response.load_timing.connect_timing.connect_end =
start_ticks + base::Milliseconds(500);
response.load_timing.send_start = start_ticks + base::Milliseconds(500);
response.load_timing.send_end = start_ticks + base::Milliseconds(550);
response.load_timing.receive_headers_start =
start_ticks + base::Milliseconds(1000);
response.load_timing.receive_non_informational_headers_start =
start_ticks + base::Milliseconds(1000);
response.load_timing.receive_headers_end =
start_ticks + base::Milliseconds(1050);
}
class ContaminationDelayNavigationThrottleTest
: public RenderViewHostTestHarness {
protected:
ContaminationDelayNavigationThrottleTest()
: RenderViewHostTestHarness(
base::test::TaskEnvironment::TimeSource::MOCK_TIME) {}
};
TEST_F(ContaminationDelayNavigationThrottleTest, DefersSinceSendStart) {
GURL next_url("https://destination.test/");
auto navigation =
NavigationSimulator::CreateRendererInitiated(next_url, main_rfh());
navigation->SetAutoAdvance(false);
// Fill in some realistic looking timestamps, and mark it as contaminated.
base::Time start = base::Time::Now();
base::TimeTicks start_ticks = base::TimeTicks::Now();
static_cast<NavigationSimulatorImpl*>(navigation.get())
->set_response_postprocess_hook(base::BindRepeating(
[](base::Time start, base::TimeTicks start_ticks,
network::mojom::URLResponseHead& response) {
SetTestLoadTiming(response, start, start_ticks);
response.is_prefetch_with_cross_site_contamination = true;
},
start, start_ticks));
task_environment()->FastForwardBy(base::Milliseconds(1050));
// When we're ready to commit, we should be deferred for 550 ms
// (receive_headers_end - send_start) but no longer.
navigation->ReadyToCommit();
EXPECT_TRUE(navigation->IsDeferred());
task_environment()->FastForwardBy(base::Milliseconds(549));
EXPECT_TRUE(navigation->IsDeferred());
task_environment()->FastForwardBy(base::Milliseconds(1));
EXPECT_FALSE(navigation->IsDeferred());
navigation->Commit();
}
TEST_F(ContaminationDelayNavigationThrottleTest, IgnoresUncontaminated) {
GURL next_url("https://destination.test/");
auto navigation =
NavigationSimulator::CreateRendererInitiated(next_url, main_rfh());
navigation->SetAutoAdvance(false);
// Fill in some realistic looking timestamps, and mark it as uncontaminated.
base::Time start = base::Time::Now();
base::TimeTicks start_ticks = base::TimeTicks::Now();
static_cast<NavigationSimulatorImpl*>(navigation.get())
->set_response_postprocess_hook(base::BindRepeating(
[](base::Time start, base::TimeTicks start_ticks,
network::mojom::URLResponseHead& response) {
SetTestLoadTiming(response, start, start_ticks);
response.is_prefetch_with_cross_site_contamination = false;
},
start, start_ticks));
task_environment()->FastForwardBy(base::Milliseconds(1050));
// There should be no delay.
navigation->ReadyToCommit();
EXPECT_FALSE(navigation->IsDeferred());
navigation->Commit();
}
} // namespace
} // namespace content
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