/*

 * Copyright (c) 2025 Huawei Device Co., Ltd.

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#include <gtest/gtest.h>



#include "device_manager.h"



namespace OHOS {

namespace MMI {

namespace {

using namespace testing::ext;

} // namespace



class DeviceManagerTest : public testing::Test {

public:

    static void SetUpTestCase(void) {}

    static void TearDownTestCase(void) {}

    void SetUp() {}

    void TearDown() {}

};



/**

 * @tc.name: DeviceManagerTest_ExtractEventNumber_Valid

 * @tc.desc: Test extracting event number from valid file names

 * @tc.type: FUNC

 * @tc.require:

 */

HWTEST_F(DeviceManagerTest, DeviceManagerTest_ExtractEventNumber_Valid, TestSize.Level1)

{

    DeviceManager deviceManager;

    EXPECT_EQ(deviceManager.ExtractEventNumber("event0"), 0);

    EXPECT_EQ(deviceManager.ExtractEventNumber("event1"), 1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("event10"), 10);

    EXPECT_EQ(deviceManager.ExtractEventNumber("event999"), 999);

}



/**

 * @tc.name: DeviceManagerTest_ExtractEventNumber_Invalid

 * @tc.desc: Test extracting event number from invalid file names

 * @tc.type: FUNC

 * @tc.require:

 */

HWTEST_F(DeviceManagerTest, DeviceManagerTest_ExtractEventNumber_Invalid, TestSize.Level1)

{

    DeviceManager deviceManager;

    EXPECT_EQ(deviceManager.ExtractEventNumber(""), -1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("event"), -1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("eventX"), -1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("event-1"), -1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("EVENT0"), -1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("myevent0"), -1);

    EXPECT_EQ(deviceManager.ExtractEventNumber("event0suffix"), -1);

}



/**

 * @tc.name: DeviceManagerTest_BuildDevicePath

 * @tc.desc: Test building device path from file name

 * @tc.type: FUNC

 * @tc.require:

 */

HWTEST_F(DeviceManagerTest, DeviceManagerTest_BuildDevicePath, TestSize.Level1)

{

    DeviceManager deviceManager;

    EXPECT_EQ(deviceManager.BuildDevicePath("event0"), "/dev/input/event0");

    EXPECT_EQ(deviceManager.BuildDevicePath("test"), "/dev/input/test");

    EXPECT_EQ(deviceManager.BuildDevicePath(""), "/dev/input/");

}



/**

 * @tc.name: DeviceManagerTest_DiscoverDevices_NoException

 * @tc.desc: Test that DiscoverDevices doesn't throw exceptions

 * @tc.type: FUNC

 * @tc.require:

 */

HWTEST_F(DeviceManagerTest, DeviceManagerTest_DiscoverDevices_NoException, TestSize.Level1)

{

    DeviceManager deviceManager;

    ASSERT_NO_FATAL_FAILURE({

        auto devices = deviceManager.DiscoverDevices();

    });

}



/**

 * @tc.name: DeviceManagerTest_PrintDeviceList_NoException

 * @tc.desc: Test that PrintDeviceList doesn't throw exceptions

 * @tc.type: FUNC

 * @tc.require:

 */

HWTEST_F(DeviceManagerTest, DeviceManagerTest_PrintDeviceList_NoException, TestSize.Level1)

{

    DeviceManager deviceManager;

    ASSERT_NO_FATAL_FAILURE({

        deviceManager.PrintDeviceList();

    });

}

} // namespace MMI

} // namespace OHOS