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// Copyright 2022 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/aggregation_service/report_scheduler_timer.h"
#include <memory>
#include <optional>
#include <utility>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "base/test/gmock_move_support.h"
#include "base/test/task_environment.h"
#include "base/time/time.h"
#include "services/network/public/mojom/network_change_manager.mojom.h"
#include "services/network/test/test_network_connection_tracker.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
using testing::_;
using testing::InSequence;
using testing::Invoke;
using Checkpoint = testing::MockFunction<void(int step)>;
constexpr auto kExampleTime =
base::Time::FromMillisecondsSinceUnixEpoch(1652984901234);
class MockReportSchedulerTimerDelegate : public ReportSchedulerTimer::Delegate {
public:
MOCK_METHOD(void,
GetNextReportTime,
(base::OnceCallback<void(std::optional<base::Time>)>, base::Time),
(override));
MOCK_METHOD(void,
OnReportingTimeReached,
(base::Time, base::Time),
(override));
MOCK_METHOD(void,
AdjustOfflineReportTimes,
(base::OnceCallback<void(std::optional<base::Time>)>),
(override));
};
class ReportSchedulerTimerTest : public testing::Test {
public:
void SetUp() override {
auto timer_delegate = std::make_unique<MockReportSchedulerTimerDelegate>();
timer_delegate_ = timer_delegate.get();
timer_ = std::make_unique<ReportSchedulerTimer>(std::move(timer_delegate));
}
protected:
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
// Must outlive `timer_delegate_`.
std::unique_ptr<ReportSchedulerTimer> timer_;
raw_ptr<MockReportSchedulerTimerDelegate> timer_delegate_;
};
TEST_F(ReportSchedulerTimerTest, SetTimer_FiredAtAppropriateTime) {
Checkpoint checkpoint;
{
InSequence seq;
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached).Times(0);
EXPECT_CALL(checkpoint, Call(1));
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached);
EXPECT_CALL(*timer_delegate_, GetNextReportTime); // Called via Refresh().
}
timer_->MaybeSet(kExampleTime);
base::TimeDelta fast_forward_required = kExampleTime - base::Time::Now();
task_environment_.FastForwardBy(fast_forward_required - base::Seconds(1));
checkpoint.Call(1);
task_environment_.FastForwardBy(base::Seconds(1));
}
TEST_F(ReportSchedulerTimerTest, MultipleSetTimers_FiredAtAppropriateTime) {
Checkpoint checkpoint;
base::OnceCallback<void(std::optional<base::Time>)> saved_cb_1;
base::OnceCallback<void(std::optional<base::Time>)> saved_cb_2;
{
InSequence seq;
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached).Times(0);
EXPECT_CALL(checkpoint, Call(1));
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached);
EXPECT_CALL(*timer_delegate_, GetNextReportTime)
.WillOnce(MoveArg<0>(&saved_cb_1)); // Called via Refresh().
EXPECT_CALL(checkpoint, Call(2));
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached).Times(0);
EXPECT_CALL(checkpoint, Call(3));
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached);
EXPECT_CALL(*timer_delegate_, GetNextReportTime)
.WillOnce(MoveArg<0>(&saved_cb_2)); // Called via Refresh().
EXPECT_CALL(checkpoint, Call(4));
}
// Test both simultaneous and non-simultaneous times.
const base::Time kReportTimes[] = {kExampleTime, kExampleTime,
kExampleTime + base::Hours(1)};
for (base::Time report_time : kReportTimes) {
timer_->MaybeSet(report_time);
}
checkpoint.Call(1);
task_environment_.FastForwardBy(kExampleTime - base::Time::Now());
checkpoint.Call(2);
std::move(saved_cb_1).Run(kExampleTime + base::Hours(1));
checkpoint.Call(3);
task_environment_.FastForwardBy(base::Hours(1));
checkpoint.Call(4);
// Nothing should happen if no reports are left.
std::move(saved_cb_2).Run(std::nullopt);
}
TEST_F(ReportSchedulerTimerTest, NetworkChange) {
Checkpoint checkpoint;
{
InSequence seq;
EXPECT_CALL(*timer_delegate_, OnReportingTimeReached).Times(0);
EXPECT_CALL(checkpoint, Call(1));
EXPECT_CALL(*timer_delegate_, AdjustOfflineReportTimes);
}
timer_->MaybeSet(kExampleTime);
// Go offline
network::TestNetworkConnectionTracker::GetInstance()->SetConnectionType(
network::mojom::ConnectionType::CONNECTION_NONE);
task_environment_.FastForwardBy(kExampleTime - base::Time::Now());
checkpoint.Call(1);
// Go back online.
network::TestNetworkConnectionTracker::GetInstance()->SetConnectionType(
network::mojom::ConnectionType::CONNECTION_WIFI);
// Ensure that the network connection observers have been notified before
// this call returns.
task_environment_.RunUntilIdle();
}
// TODO(apaseltiner): Figure out how to test the case in which the network
// connection tracker is uninitialized.
TEST(ReportSchedulerTimer, Constructor_AdjustsOfflineReportTimes) {
constexpr struct {
network::mojom::ConnectionType connection_type;
bool call_expected;
} kTestCases[] = {
// Call is skipped because the browser is offline.
{
network::mojom::ConnectionType::CONNECTION_NONE,
false,
},
// Call is made because the browser is online.
{
network::mojom::ConnectionType::CONNECTION_ETHERNET,
true,
},
};
for (const auto& test_case : kTestCases) {
for (bool synchronous : {true, false}) {
base::test::TaskEnvironment task_environment{
base::test::TaskEnvironment::TimeSource::MOCK_TIME};
auto* tracker = network::TestNetworkConnectionTracker::GetInstance();
tracker->SetRespondSynchronously(synchronous);
tracker->SetConnectionType(test_case.connection_type);
auto timer_delegate =
std::make_unique<MockReportSchedulerTimerDelegate>();
EXPECT_CALL(*timer_delegate, AdjustOfflineReportTimes)
.Times(test_case.call_expected);
ReportSchedulerTimer timer(std::move(timer_delegate));
// Flush the async call.
if (!synchronous) {
task_environment.RunUntilIdle();
}
}
}
}
} // namespace
} // namespace content
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