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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 "ash/accelerometer/accel_gyro_samples_observer.h"
#include <array>
#include <memory>
#include <utility>
#include "ash/accelerometer/accelerometer_constants.h"
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "chromeos/components/sensors/fake_sensor_device.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace {
constexpr int kFakeAccelerometerId = 1;
constexpr int kFakeGyroscopeId = 2;
constexpr std::array<int64_t, 3> kFakeSampleData = {1, 2, 3};
constexpr double kFakeScaleValue = 10.0;
class AccelGyroSamplesObserverTest : public ::testing::Test {
protected:
void SetAccelerometerChannels(uint32_t num_of_axes) {
CHECK_LE(num_of_axes, kNumberOfAxes);
std::vector<chromeos::sensors::FakeSensorDevice::ChannelData> channels_data(
num_of_axes);
for (uint32_t i = 0; i < num_of_axes; ++i) {
channels_data[i].id = kAccelerometerChannels[i];
channels_data[i].sample_data = kFakeSampleData[i];
}
sensor_device_ = std::make_unique<chromeos::sensors::FakeSensorDevice>(
std::move(channels_data));
}
void SetGyroscopeChannels(uint32_t num_of_axes) {
CHECK_LE(num_of_axes, kNumberOfAxes);
std::vector<chromeos::sensors::FakeSensorDevice::ChannelData> channels_data(
num_of_axes);
for (uint32_t i = 0; i < num_of_axes; ++i) {
channels_data[i].id = kGyroscopeChannels[i];
channels_data[i].sample_data = kFakeSampleData[i];
}
sensor_device_ = std::make_unique<chromeos::sensors::FakeSensorDevice>(
std::move(channels_data));
}
void SetAccelerometerObserver(
mojo::Remote<chromeos::sensors::mojom::SensorDevice> accelerometer) {
observer_ = std::make_unique<AccelGyroSamplesObserver>(
kFakeAccelerometerId, std::move(accelerometer), kFakeScaleValue,
base::BindRepeating(
&AccelGyroSamplesObserverTest::OnSampleUpdatedCallback,
base::Unretained(this)));
}
void SetGyroscopeObserver(
mojo::Remote<chromeos::sensors::mojom::SensorDevice> gyroscope) {
observer_ = std::make_unique<AccelGyroSamplesObserver>(
kFakeGyroscopeId, std::move(gyroscope), kFakeScaleValue,
base::BindRepeating(
&AccelGyroSamplesObserverTest::OnSampleUpdatedCallback,
base::Unretained(this)),
chromeos::sensors::mojom::DeviceType::ANGLVEL);
}
void OnSampleUpdatedCallback(int iio_device_id, std::vector<float> sample) {
EXPECT_EQ(sample.size(), kNumberOfAxes);
for (uint32_t i = 0; i < kNumberOfAxes; ++i) {
EXPECT_EQ(sample[i], kFakeSampleData[i] * kFakeScaleValue);
}
++num_samples_;
}
void DisableFirstChannel(mojo::ReceiverId id) {
sensor_device_->SetChannelsEnabledWithId(id, {0}, false);
}
std::unique_ptr<chromeos::sensors::FakeSensorDevice> sensor_device_;
std::unique_ptr<AccelGyroSamplesObserver> observer_;
int num_samples_ = 0;
base::test::SingleThreadTaskEnvironment task_environment;
};
TEST_F(AccelGyroSamplesObserverTest, MissingChannels) {
SetAccelerometerChannels(kNumberOfAxes - 1);
mojo::Remote<chromeos::sensors::mojom::SensorDevice> accelerometer;
sensor_device_->AddReceiver(accelerometer.BindNewPipeAndPassReceiver());
SetAccelerometerObserver(std::move(accelerometer));
// Wait until the mojo connection is reset.
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(sensor_device_->HasReceivers());
}
TEST_F(AccelGyroSamplesObserverTest, StartReadingTwiceError) {
SetAccelerometerChannels(kNumberOfAxes);
mojo::Remote<chromeos::sensors::mojom::SensorDevice> accelerometer;
sensor_device_->AddReceiver(accelerometer.BindNewPipeAndPassReceiver());
mojo::PendingRemote<chromeos::sensors::mojom::SensorDeviceSamplesObserver>
pending_remote;
auto null_receiver = pending_remote.InitWithNewPipeAndPassReceiver();
accelerometer->StartReadingSamples(std::move(pending_remote));
SetAccelerometerObserver(std::move(accelerometer));
// Wait until the mojo connection is reset.
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(sensor_device_->HasReceivers());
}
TEST_F(AccelGyroSamplesObserverTest, GetAcceleratorSamples) {
SetAccelerometerChannels(kNumberOfAxes);
mojo::Remote<chromeos::sensors::mojom::SensorDevice> accelerometer;
auto id =
sensor_device_->AddReceiver(accelerometer.BindNewPipeAndPassReceiver());
SetAccelerometerObserver(std::move(accelerometer));
observer_->SetEnabled(true);
// Wait until a sample is received.
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(sensor_device_->HasReceivers());
EXPECT_EQ(num_samples_, 1);
DisableFirstChannel(id);
// Wait until a sample is received.
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(sensor_device_->HasReceivers());
// The updated sample is not sent to |OnSampleUpdatedCallback|.
EXPECT_EQ(num_samples_, 1);
// Simulate a disconnection of the observer's mojo channel in IIO Service.
sensor_device_->ResetObserverRemote(id);
// Wait until the disconnection is done.
base::RunLoop().RunUntilIdle();
// OnObserverDisconnect shouldn't reset SensorDevice's mojo endpoint so that
// AccelerometerProviderMojo can get the disconnection.
EXPECT_TRUE(sensor_device_->HasReceivers());
}
TEST_F(AccelGyroSamplesObserverTest, GetGyroscopeSamples) {
SetGyroscopeChannels(kNumberOfAxes);
mojo::Remote<chromeos::sensors::mojom::SensorDevice> gyroscope;
auto id = sensor_device_->AddReceiver(gyroscope.BindNewPipeAndPassReceiver());
SetGyroscopeObserver(std::move(gyroscope));
observer_->SetEnabled(true);
// Wait until a sample is received.
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(sensor_device_->HasReceivers());
EXPECT_EQ(num_samples_, 1);
DisableFirstChannel(id);
// Wait until a sample is received.
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(sensor_device_->HasReceivers());
// The updated sample is not sent to |OnSampleUpdatedCallback|.
EXPECT_EQ(num_samples_, 1);
// Simulate a disconnection of the observer's mojo channel in IIO Service.
sensor_device_->ResetObserverRemote(id);
// Wait until the disconnection is done.
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(sensor_device_->HasReceivers());
}
} // namespace
} // namespace ash
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