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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 "chromeos/ash/components/heatmap/heatmap_palm_detector_impl.h"
#include <memory>
#include <optional>
#include "base/run_loop.h"
#include "chromeos/dbus/machine_learning/machine_learning_client.h"
#include "chromeos/services/machine_learning/public/cpp/fake_service_connection.h"
#include "chromeos/services/machine_learning/public/cpp/service_connection.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
namespace {
base::Time TestTime(int64_t millis) {
return base::Time::FromMillisecondsSinceUnixEpoch(millis);
}
class HeatmapPalmDetectorImplTest : public testing::Test {
public:
void SetUp() override {
chromeos::MachineLearningClient::InitializeFake();
chromeos::machine_learning::ServiceConnection::
UseFakeServiceConnectionForTesting(&fake_service_connection_);
chromeos::machine_learning::ServiceConnection::GetInstance()->Initialize();
detector_ = std::make_unique<HeatmapPalmDetectorImpl>();
EXPECT_FALSE(detector_->IsReady());
detector_->Start(HeatmapPalmDetectorImpl::ModelId::kRex, "/dev/hidraw0",
std::nullopt);
task_environment_.RunUntilIdle();
EXPECT_TRUE(detector_->IsReady());
}
void TearDown() override { chromeos::MachineLearningClient::Shutdown(); }
protected:
std::unique_ptr<HeatmapPalmDetectorImpl> detector_;
chromeos::machine_learning::FakeServiceConnectionImpl
fake_service_connection_;
content::BrowserTaskEnvironment task_environment_;
};
TEST_F(HeatmapPalmDetectorImplTest, DetectsPalm) {
detector_->AddTouchRecord(TestTime(40), {0});
detector_->AddTouchRecord(TestTime(50), {1});
auto palm_event =
chromeos::machine_learning::mojom::HeatmapProcessedEvent::New();
palm_event->is_palm = true;
palm_event->timestamp = TestTime(52);
fake_service_connection_.SendHeatmapPalmRejectionEvent(std::move(palm_event));
task_environment_.RunUntilIdle();
EXPECT_FALSE(detector_->IsPalm(0));
EXPECT_TRUE(detector_->IsPalm(1));
}
TEST_F(HeatmapPalmDetectorImplTest, MatchesClosestRecord) {
detector_->AddTouchRecord(TestTime(40), {0});
detector_->AddTouchRecord(TestTime(50), {1});
auto palm_event =
chromeos::machine_learning::mojom::HeatmapProcessedEvent::New();
palm_event->is_palm = true;
palm_event->timestamp = TestTime(46);
fake_service_connection_.SendHeatmapPalmRejectionEvent(std::move(palm_event));
task_environment_.RunUntilIdle();
EXPECT_FALSE(detector_->IsPalm(0));
EXPECT_TRUE(detector_->IsPalm(1));
}
TEST_F(HeatmapPalmDetectorImplTest,
DoesNotMatchFarawayRecordEvenIfItIsClosest) {
detector_->AddTouchRecord(TestTime(40), {0});
detector_->AddTouchRecord(TestTime(100), {1});
auto palm_event =
chromeos::machine_learning::mojom::HeatmapProcessedEvent::New();
palm_event->is_palm = true;
palm_event->timestamp = TestTime(70);
fake_service_connection_.SendHeatmapPalmRejectionEvent(std::move(palm_event));
task_environment_.RunUntilIdle();
EXPECT_FALSE(detector_->IsPalm(0));
EXPECT_FALSE(detector_->IsPalm(1));
}
} // namespace
} // namespace ash
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