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// Copyright 2020 The Chromium Authors
// 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/modules/peerconnection/thermal_resource.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/modules/peerconnection/testing/fake_resource_listener.h"
#include "third_party/blink/renderer/platform/testing/task_environment.h"
#include "third_party/blink/renderer/platform/testing/testing_platform_support_with_mock_scheduler.h"
#include "third_party/webrtc/api/adaptation/resource.h"
namespace blink {
namespace {
const int64_t kReportIntervalMs = 10000;
class ThermalResourceTest : public ::testing::Test {
public:
ThermalResourceTest()
: task_runner_(platform_->test_task_runner()),
resource_(ThermalResource::Create(task_runner_)) {}
void TearDown() override {
// Give in-flight tasks a chance to run before shutdown.
resource_->SetResourceListener(nullptr);
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
}
protected:
test::TaskEnvironment task_environment_;
ScopedTestingPlatformSupport<TestingPlatformSupportWithMockScheduler>
platform_;
// Tasks run on the test thread with fake time, use FastForwardBy() to
// advance time and execute delayed tasks.
scoped_refptr<base::TestMockTimeTaskRunner> task_runner_;
scoped_refptr<ThermalResource> resource_;
FakeResourceListener listener_;
};
} // namespace
TEST_F(ThermalResourceTest, NoMeasurementsByDefault) {
resource_->SetResourceListener(&listener_);
EXPECT_EQ(0u, listener_.measurement_count());
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
EXPECT_EQ(0u, listener_.measurement_count());
}
TEST_F(ThermalResourceTest, NominalTriggersUnderuse) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kNominal);
EXPECT_EQ(1u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kUnderuse,
listener_.latest_measurement());
}
TEST_F(ThermalResourceTest, FairTriggersUnderuse) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kFair);
EXPECT_EQ(1u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kUnderuse,
listener_.latest_measurement());
}
TEST_F(ThermalResourceTest, SeriousTriggersOveruse) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kSerious);
EXPECT_EQ(1u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kOveruse,
listener_.latest_measurement());
}
TEST_F(ThermalResourceTest, CriticalTriggersOveruse) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kCritical);
EXPECT_EQ(1u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kOveruse,
listener_.latest_measurement());
}
TEST_F(ThermalResourceTest, UnknownDoesNotTriggerUsage) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kUnknown);
EXPECT_EQ(0u, listener_.measurement_count());
}
TEST_F(ThermalResourceTest, MeasurementsRepeatEvery10Seconds) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kSerious);
size_t expected_count = listener_.measurement_count();
// First Interval.
// No new measurement if we advance less than the interval.
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs - 1));
EXPECT_EQ(expected_count, listener_.measurement_count());
// When the interval is reached, expect a new measurement.
task_runner_->FastForwardBy(base::Milliseconds(1));
++expected_count;
EXPECT_EQ(expected_count, listener_.measurement_count());
// Second Interval.
// No new measurement if we advance less than the interval.
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs - 1));
EXPECT_EQ(expected_count, listener_.measurement_count());
// When the interval is reached, expect a new measurement.
task_runner_->FastForwardBy(base::Milliseconds(1));
++expected_count;
EXPECT_EQ(expected_count, listener_.measurement_count());
// Third Interval.
// No new measurement if we advance less than the interval.
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs - 1));
EXPECT_EQ(expected_count, listener_.measurement_count());
// When the interval is reached, expect a new measurement.
task_runner_->FastForwardBy(base::Milliseconds(1));
++expected_count;
EXPECT_EQ(expected_count, listener_.measurement_count());
}
TEST_F(ThermalResourceTest, NewMeasurementInvalidatesInFlightRepetition) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kSerious);
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
// We are repeatedly kOveruse.
EXPECT_EQ(2u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kOveruse,
listener_.latest_measurement());
// Fast-forward half an interval. The repeated measurement is still in-flight.
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs / 2));
EXPECT_EQ(2u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kOveruse,
listener_.latest_measurement());
// Trigger kUnderuse.
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kNominal);
EXPECT_EQ(3u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kUnderuse,
listener_.latest_measurement());
// Fast-forward another half an interval, giving the previous in-flight task
// a chance to run. No new measurement is expected.
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs / 2));
EXPECT_EQ(3u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kUnderuse,
listener_.latest_measurement());
// Once more, and the repetition of kUnderuse should be observed (one interval
// has passed since the OnThermalMeasurement).
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs / 2));
EXPECT_EQ(4u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kUnderuse,
listener_.latest_measurement());
}
TEST_F(ThermalResourceTest, UnknownStopsRepeatedMeasurements) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kSerious);
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
// The measurement is repeating.
EXPECT_EQ(2u, listener_.measurement_count());
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kUnknown);
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
// No more measurements.
EXPECT_EQ(2u, listener_.measurement_count());
}
TEST_F(ThermalResourceTest, UnregisteringStopsRepeatedMeasurements) {
resource_->SetResourceListener(&listener_);
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kSerious);
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
// The measurement is repeating.
EXPECT_EQ(2u, listener_.measurement_count());
resource_->SetResourceListener(nullptr);
// If repeating tasks were not stopped, this line would block forever.
task_runner_->FastForwardUntilNoTasksRemain();
// No more measurements.
EXPECT_EQ(2u, listener_.measurement_count());
}
TEST_F(ThermalResourceTest, RegisteringLateTriggersRepeatedMeasurements) {
resource_->OnThermalMeasurement(mojom::blink::DeviceThermalState::kSerious);
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
EXPECT_EQ(0u, listener_.measurement_count());
// Registering triggers kOveruse.
resource_->SetResourceListener(&listener_);
EXPECT_EQ(1u, listener_.measurement_count());
EXPECT_EQ(webrtc::ResourceUsageState::kOveruse,
listener_.latest_measurement());
// The measurement is repeating.
task_runner_->FastForwardBy(base::Milliseconds(kReportIntervalMs));
EXPECT_EQ(2u, listener_.measurement_count());
}
} // namespace blink
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