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// Copyright 2023 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/chained_back_navigation_tracker.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "chrome/test/base/chrome_render_view_host_test_harness.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/navigation_simulator.h"
class ChainedBackNavigationTrackerTest
: public ChromeRenderViewHostTestHarness {
public:
ChainedBackNavigationTrackerTest()
: ChromeRenderViewHostTestHarness(
base::test::TaskEnvironment::TimeSource::MOCK_TIME) {}
protected:
std::vector<GURL> test_urls() {
std::vector<GURL> urls;
for (uint32_t i = 0; i < min_navigation_cnt_ * 2; ++i) {
urls.push_back(GURL("http://foo/" + base::NumberToString(i)));
}
return urls;
}
const uint32_t min_navigation_cnt_ =
ChainedBackNavigationTracker::kMinimumChainedBackNavigationLength;
const int64_t max_navigation_interval_ = ChainedBackNavigationTracker::
kMaxChainedBackNavigationIntervalInMilliseconds;
};
TEST_F(ChainedBackNavigationTrackerTest, ChainedBackNavigationStatus) {
const std::vector<GURL> urls = test_urls();
for (const GURL& url : urls) {
NavigateAndCommit(url);
}
ChainedBackNavigationTracker::CreateForWebContents(web_contents());
const ChainedBackNavigationTracker* tracker =
ChainedBackNavigationTracker::FromWebContents(web_contents());
ASSERT_TRUE(tracker);
// Before any back navigation, the return value for these two checker
// functions should be false.
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
for (uint32_t i = 1; i < urls.size(); ++i) {
content::NavigationSimulator::GoBack(web_contents());
// Since `RecordBackButtonClickForChainedBackNavigation()` is never called,
// `IsBackButtonChainedBackNavigationRecentlyPerformed()` should always
// returns false.
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
// The check should only return true when the number of consecutive back
// navigation is smaller than `kMinimumChainedBackNavigationLength`.
if (i < min_navigation_cnt_) {
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
} else {
ASSERT_TRUE(tracker->IsChainedBackNavigationRecentlyPerformed());
}
}
}
TEST_F(ChainedBackNavigationTrackerTest,
ChainedBackNavigationStatus_ResetCountIfIntervalIsTooLong) {
const std::vector<GURL> urls = test_urls();
for (const GURL& url : urls) {
NavigateAndCommit(url);
}
ChainedBackNavigationTracker::CreateForWebContents(web_contents());
const ChainedBackNavigationTracker* tracker =
ChainedBackNavigationTracker::FromWebContents(web_contents());
ASSERT_TRUE(tracker);
// Before any back navigation, the return value for these two checker
// functions should be false.
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
for (uint32_t i = 1; i < min_navigation_cnt_; ++i) {
content::NavigationSimulator::GoBack(web_contents());
// The checks should always return false since the number of consecutive
// back navigation is smaller than `kMinimumChainedBackNavigationLength`.
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
}
// After waiting for sufficiently long interval, the counter should be reset
// so the checks should always return false.
task_environment()->FastForwardBy(
base::Milliseconds(max_navigation_interval_ * 2));
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
for (uint32_t i = 1; i < min_navigation_cnt_; ++i) {
content::NavigationSimulator::GoBack(web_contents());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
}
}
TEST_F(
ChainedBackNavigationTrackerTest,
ChainedBackNavigationStatus_ResetCountIfNonBackForwardNavigationHappens) {
const std::vector<GURL> urls = test_urls();
for (const GURL& url : urls) {
NavigateAndCommit(url);
}
ChainedBackNavigationTracker::CreateForWebContents(web_contents());
const ChainedBackNavigationTracker* tracker =
ChainedBackNavigationTracker::FromWebContents(web_contents());
ASSERT_TRUE(tracker);
// Before any back navigation, the return value for these two checker
// functions should be false.
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
for (uint32_t i = 1; i < min_navigation_cnt_; ++i) {
content::NavigationSimulator::GoBack(web_contents());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
}
// After performing another non history navigation, the counter should be
// reset so the checks should always return false.
NavigateAndCommit(GURL("http://bar/1"));
ASSERT_EQ(0u, tracker->chained_back_navigation_count_);
for (uint32_t i = 1; i < min_navigation_cnt_; ++i) {
content::NavigationSimulator::GoBack(web_contents());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
}
}
TEST_F(ChainedBackNavigationTrackerTest,
ChainedBackNavigationStatus_BackButtonClicked) {
const std::vector<GURL> urls = test_urls();
for (const GURL& url : urls) {
NavigateAndCommit(url);
}
ChainedBackNavigationTracker::CreateForWebContents(web_contents());
ChainedBackNavigationTracker* tracker =
ChainedBackNavigationTracker::FromWebContents(web_contents());
ASSERT_TRUE(tracker);
// Before any back navigation, the return value for these two checker
// functions should be false.
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
for (uint32_t i = 1; i < urls.size(); ++i) {
tracker->RecordBackButtonClickForChainedBackNavigation();
content::NavigationSimulator::GoBack(web_contents());
// The checks should only return true when the number of consecutive back
// navigation is greater than or equal to
// `kMinimumChainedBackNavigationLength`.
if (i >= min_navigation_cnt_) {
ASSERT_TRUE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_TRUE(
tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
} else {
ASSERT_FALSE(tracker->IsChainedBackNavigationRecentlyPerformed());
ASSERT_FALSE(
tracker->IsBackButtonChainedBackNavigationRecentlyPerformed());
}
}
}
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