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// 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 "third_party/blink/renderer/core/loader/document_load_timing.h"
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/core/loader/document_loader.h"
#include "third_party/blink/renderer/core/testing/dummy_page_holder.h"
namespace blink {
class DocumentLoadTimingTest : public testing::Test {};
TEST_F(DocumentLoadTimingTest, ensureValidNavigationStartAfterEmbedder) {
std::unique_ptr<DummyPageHolder> dummy_page = DummyPageHolder::Create();
DocumentLoadTiming timing(*(dummy_page->GetDocument().Loader()));
double delta = -1000;
double embedder_navigation_start = CurrentTimeTicksInSeconds() + delta;
timing.SetNavigationStart(TimeTicksFromSeconds(embedder_navigation_start));
double real_wall_time = CurrentTime();
TimeDelta adjusted_wall_time =
timing.MonotonicTimeToPseudoWallTime(timing.NavigationStart());
EXPECT_NEAR(adjusted_wall_time.InSecondsF(), real_wall_time + delta, .001);
}
TEST_F(DocumentLoadTimingTest, correctTimingDeltas) {
std::unique_ptr<DummyPageHolder> dummy_page = DummyPageHolder::Create();
DocumentLoadTiming timing(*(dummy_page->GetDocument().Loader()));
double navigation_start_delta = -456;
double current_monotonic_time = CurrentTimeTicksInSeconds();
double embedder_navigation_start =
current_monotonic_time + navigation_start_delta;
timing.SetNavigationStart(TimeTicksFromSeconds(embedder_navigation_start));
// Super quick load! Expect the wall time reported by this event to be
// dominated by the navigationStartDelta, but similar to currentTime().
timing.MarkLoadEventEnd();
double real_wall_load_event_end = CurrentTime();
TimeDelta adjusted_load_event_end =
timing.MonotonicTimeToPseudoWallTime(timing.LoadEventEnd());
EXPECT_NEAR(adjusted_load_event_end.InSecondsF(), real_wall_load_event_end,
.001);
TimeDelta adjusted_navigation_start =
timing.MonotonicTimeToPseudoWallTime(timing.NavigationStart());
EXPECT_NEAR(
(adjusted_load_event_end - adjusted_navigation_start).InSecondsF(),
-navigation_start_delta, .001);
}
TEST_F(DocumentLoadTimingTest, ensureRedirectEndExcludesNextFetch) {
// Regression test for https://crbug.com/823254.
std::unique_ptr<DummyPageHolder> dummy_page = DummyPageHolder::Create();
DocumentLoadTiming timing(*(dummy_page->GetDocument().Loader()));
base::TimeTicks origin;
auto t1 = base::TimeDelta::FromSeconds(5);
auto t2 = base::TimeDelta::FromSeconds(10);
// Start a navigation to |url_that_redirects|.
timing.SetNavigationStart(origin);
// Simulate a redirect taking |t1| seconds.
timing.SetRedirectStart(origin);
origin += t1;
timing.SetRedirectEnd(origin);
// Start fetching |url_that_loads|.
timing.SetFetchStart(origin);
// Track the redirection.
KURL url_that_redirects("some_url");
KURL url_that_loads("some_other_url");
timing.AddRedirect(url_that_redirects, url_that_loads);
// Simulate |t2| seconds elapsing between fetchStart and responseEnd.
origin += t2;
timing.SetResponseEnd(origin);
// The bug was causing |redirectEnd| - |redirectStart| ~= |t1| + |t2| when it
// should be just |t1|.
double redirect_time_ms =
(timing.RedirectEnd() - timing.RedirectStart()).InMillisecondsF();
EXPECT_NEAR(redirect_time_ms, t1.InMillisecondsF(), 1.0);
}
} // namespace blink
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