Bordcomputer/src/test/java/device/cdPlayer/CDPlayerTest.java

package device.cdPlayer;

import device.Device;
import device.cdPlayer.exceptions.*;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.mockito.Mockito;
import org.mockito.junit.jupiter.MockitoExtension;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Stream;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.when;

@ExtendWith(MockitoExtension.class)
class CDPlayerTest {

    @ParameterizedTest
    @MethodSource("playTestData")
    void play(String testName, CDPlayer _cdPlayer,Exception exception , String expectedResult) {
        if(exception!=null){
            Exception newException=assertThrows(exception.getClass(),()->_cdPlayer.play());
            assertEquals(expectedResult, newException.getMessage());
        }else{
            assertThat(_cdPlayer.play()).describedAs(testName).isEqualTo(expectedResult);
        }
    }
    static Stream<Arguments> playTestData () {
        //some PlayLists
        String[] videoPlayList=new String[]{"Video 01","Video 02","Video 03","Video 04","Video 05"};
        String[] audioPlayList=new String[]{"Audio 01","Audio 02","Audio 03","Audio 04","Audio 05"};
        //some CDs
        CD videoCD1=new CD("DVD",videoPlayList);
        CD videoCD2=new CD("Blue-ray",videoPlayList);
        CD audioCD1=new CD("Audio",audioPlayList);
        CD audioCD2=new CD("MP3",audioPlayList);
        CD audioCD3=new CD("WMA",audioPlayList);
        CD audioCD4=new CD("AAC",audioPlayList);

        //some CDPlayers
        CDPlayer cdPlayer1=new CDPlayer();

        CDPlayer cdPlayer2=new CDPlayer();
        cdPlayer2.tapOnCdFlap();
        cdPlayer2.tapOnCdFlap();

        CDPlayer cdPlayer3=new CDPlayer();
        cdPlayer3.tapOnCdFlap();

        CDPlayer cdPlayer4=new CDPlayer();
        cdPlayer4.tapOnCdFlap();
        cdPlayer4.setCD(videoCD1);

        //===================================
        CDPlayer cdPlayer5=new CDPlayer();
        cdPlayer5.tapOnCdFlap();
        cdPlayer5.setCD(videoCD1);
        cdPlayer5.tapOnCdFlap();

        CDPlayer cdPlayer6=new CDPlayer();
        cdPlayer6.tapOnCdFlap();
        cdPlayer6.setCD(videoCD2);
        cdPlayer6.tapOnCdFlap();
        //===================================

        CDPlayer cdPlayer7=new CDPlayer();
        cdPlayer7.tapOnCdFlap();
        cdPlayer7.setCD(audioCD1);
        cdPlayer7.tapOnCdFlap();

        CDPlayer cdPlayer8=new CDPlayer();
        cdPlayer8.tapOnCdFlap();
        cdPlayer8.setCD(audioCD2);
        cdPlayer8.tapOnCdFlap();

        CDPlayer cdPlayer9=new CDPlayer();
        cdPlayer9.tapOnCdFlap();
        cdPlayer9.setCD(audioCD3);
        cdPlayer9.tapOnCdFlap();

        CDPlayer cdPlayer10=new CDPlayer();
        cdPlayer10.tapOnCdFlap();
        cdPlayer10.setCD(audioCD4);
        cdPlayer10.tapOnCdFlap();

        return Stream.of(
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isEmpty] => NoCD", cdPlayer1, new NoCDException(), "CD must be set."),
                Arguments.of("[CdFlap has been Opened and Closed, CdDriveContent=>isEmpty] => NoCD", cdPlayer2,new NoCDException(),"CD must be set."),
                Arguments.of("[CdFlap=isOpen , CdDriveContent=>isEmpty] => CdFlapIsOpen", cdPlayer3,new CdFlapIsOpenException(),"Cd Flap must be closed."),
                Arguments.of("[CdFlap=isOpen , CdDriveContent=>isSet] => CdFlapIsOpen", cdPlayer4,new CdFlapIsOpenException(),"Cd Flap must be closed."),
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isSet, CdFormat=>DVD] => FormatNotSupported",cdPlayer5,new  FormatNotSupportedException(),"Cd-Format not supported."),
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isSet, CdFormat=>Blue-ray] => FormatNotSupported",cdPlayer6, new  FormatNotSupportedException(),"Cd-Format not supported."),
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isSet, CdFormat=>Audio] => AllConditionsForPlayMet", cdPlayer7,null,"AllConditionsForPlayMet"),
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isSet, CdFormat=>MP3] => AllConditionsForPlayMet", cdPlayer8,null,"AllConditionsForPlayMet"),
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isSet, CdFormat=>WMA] => AllConditionsForPlayMet", cdPlayer9,null,"AllConditionsForPlayMet"),
                Arguments.of("[CdFlap=isClosed , CdDriveContent=>isSet, CdFormat=>AAC] => AllConditionsForPlayMet", cdPlayer10,null,"AllConditionsForPlayMet")
        );
    }

    @ParameterizedTest
    @MethodSource("louderTestData")
    void louderTest(String testName,String testDirection, CDPlayer _cdPlayer,int anzClicks, int expectedResult) {
        for (int i = 0; i < anzClicks; i++) {
            _cdPlayer.louder();
        }
        if(testDirection.equals("VolumeIncreased")){
            assertThat(_cdPlayer.getVolume()).describedAs(testName).isEqualTo(expectedResult);
        }
        if(testDirection.equals("VolumeHasChanged")){
            assertThat(_cdPlayer.getVolume()).describedAs(testName).isNotEqualTo(expectedResult);
        }if(testDirection.equals("VolumeNotDecreased")){
            assertThat(_cdPlayer.getVolume()).describedAs(testName).isNotEqualTo(expectedResult);
        }
    }
    static Stream<Arguments> louderTestData () {
        CDPlayer cdPlayer=new CDPlayer();
        return Stream.of(
                Arguments.of("[getVolume() after 20x louder() ] => VolumeIncreased","VolumeIncreased", cdPlayer, 20, 20),
                Arguments.of("[getVolume() after 2x louder() ] => VolumeHasChanged","VolumeHasChanged" ,cdPlayer,2,0),
                Arguments.of("[getVolume() after 5x louder() ] => VolumeDecreased","VolumeNotDecreased", cdPlayer,5,-5)
        );
    }

    @ParameterizedTest
    @MethodSource("quieterTestData")
    void quieterTest(String testName,String testDirection, CDPlayer _cdPlayer,int anzClicks, int expectedResult) {
        for (int i = 0; i < anzClicks; i++) {
            _cdPlayer.quieter();
        }

        if(testDirection.equals("VolumeDecreased")){
            for (int i = 0; i < 20; i++) {
                _cdPlayer.louder();
            }
            for (int i = 0; i < anzClicks; i++) {
                _cdPlayer.quieter();
            }
            assertThat(_cdPlayer.getVolume()).describedAs(testName).isEqualTo(expectedResult);
        }
        if(testDirection.equals("VolumeHasNotChanged")){
            assertThat(_cdPlayer.getVolume()).describedAs(testName).isEqualTo(expectedResult);
        }if(testDirection.equals("VolumeNotIncreased")){

            assertThat(_cdPlayer.getVolume()).describedAs(testName).isNotEqualTo(expectedResult);
        }
    }

    static Stream<Arguments> quieterTestData () {
        CDPlayer cdPlayer=new CDPlayer();
        return Stream.of(
                Arguments.of("[getVolume() after 20x quieter() starting by 20] => VolumeHasDecreased","VolumeDecreased", cdPlayer, 19, 1),
                Arguments.of("[getVolume() after 20x quieter() starting by 0] => VolumeHasNotChanged","VolumeHasNotChanged" ,cdPlayer,20,0),
                Arguments.of("[getVolume() after 5x quieter() starting by 0] => VolumeNotIncreased","VolumeNotIncreased", cdPlayer,5,5)
        );
    }

    @ParameterizedTest
    @MethodSource("nextTestData")
    void nextTest(String testName,String testDirection, CDPlayer _cdPlayer,int anzClicks, String expectedResult){

        if(testDirection.equals("SecondSongSelected")|| testDirection.equals("ThirdSongSelected")){
            for (int i = 0; i < anzClicks; i++) {
                _cdPlayer.next();
            }
            assertThat(_cdPlayer.getActualPlayTrack()).describedAs(testName).isEqualTo(expectedResult);
        }
        if(testDirection.equals("FirstSongSelected")){
            for (int i = 0; i <anzClicks; i++) {
                _cdPlayer.next();
            }
            assertThat(_cdPlayer.getActualPlayTrack()).describedAs(testName).isEqualTo(expectedResult);
        }
    }
    static Stream<Arguments> nextTestData () {

        String[] audioPlayList=new String[]{"Audio 01","Audio 02","Audio 03","Audio 04","Audio 05"};
        CD audioCD=new CD("Audio",audioPlayList);

        CDPlayer cdPlayer1=new CDPlayer();
        cdPlayer1.tapOnCdFlap();
        cdPlayer1.setCD(audioCD);
        cdPlayer1.tapOnCdFlap();

        CDPlayer cdPlayer2=new CDPlayer();
        cdPlayer2.tapOnCdFlap();
        cdPlayer2.setCD(audioCD);
        cdPlayer2.tapOnCdFlap();

        CDPlayer cdPlayer3=new CDPlayer();
        cdPlayer3.tapOnCdFlap();
        cdPlayer3.setCD(audioCD);
        cdPlayer3.tapOnCdFlap();

        return Stream.of(
                Arguments.of("[getActualPlayTrack() after 1x next() starting by firstSong] => SecondSongSelected","SecondSongSelected", cdPlayer1, 1, cdPlayer1.getSongByNumber(1)),
                Arguments.of("[getActualPlayTrack() after 2x next() starting by firstSong] => ThirdSongSelected","ThirdSongSelected" ,cdPlayer2,2,cdPlayer2.getSongByNumber(2)),
                Arguments.of("[getActualPlayTrack() after 1x next() starting by lastSong] => FirstSongSelected","FirstSongSelected", cdPlayer3,cdPlayer3.getItemList().length,cdPlayer3.getSongByNumber(0))
        );
    }

    @ParameterizedTest
    @MethodSource("prevTestData")
    void prevTest(String testName,String testDirection, CDPlayer _cdPlayer,int anzClicks, String expectedResult){
        if(testDirection.equals("StartingBySecondSong")) {
            _cdPlayer.next();
        }
        if(testDirection.equals("StartingByThirdSong")) {
            _cdPlayer.next();
            _cdPlayer.next();
        }
        for (int i = 0; i < anzClicks; i++) {
            _cdPlayer.prev();
        }
        assertThat(_cdPlayer.getActualPlayTrack()).describedAs(testName).isEqualTo(expectedResult);
    }
    static Stream<Arguments> prevTestData () {

        String[] audioPlayList = new String[]{"Audio 01", "Audio 02", "Audio 03", "Audio 04", "Audio 05"};
        CD audioCD = new CD("Audio", audioPlayList);

        CDPlayer cdPlayer1 = new CDPlayer();
        cdPlayer1.tapOnCdFlap();
        cdPlayer1.setCD(audioCD);
        cdPlayer1.tapOnCdFlap();

        return Stream.of(
                Arguments.of("[getActualPlayTrack() after 1x prev() starting by secondSong] => FirstSongSelected", "StartingBySecondSong", cdPlayer1, 1, cdPlayer1.getSongByNumber(0)),
                Arguments.of("[getActualPlayTrack() after 2x prev() starting by thirdSong] => FirstSongSelected", "StartingByThirdSong", cdPlayer1, 2, cdPlayer1.getSongByNumber(0)),
                Arguments.of("[getActualPlayTrack() after 1x prev() starting by firstSong] => FirstSongSelected", "StartingByFirstSong", cdPlayer1, 1, cdPlayer1.getSongByNumber(0))
        );
    }

    @ParameterizedTest
    @MethodSource("getOptionsTestData")
    void getOptionsTest(String testName,String testDirection, CDPlayer _cdPlayer){
        if(testDirection.equals("ReturnValueNotNull")) {
            assertThat(_cdPlayer.getOptions()).describedAs(testName).isNotEqualTo(null);
        }
        if(testDirection.equals("ArrayLengthGreaterThen0")) {
            assertThat(_cdPlayer.getOptions().length).describedAs(testName).isNotEqualTo(0);
        }
        if(testDirection.equals("ArrayContainsInterfaceMethods")) {
            Method[]interfaceMethods=Device.class.getDeclaredMethods();
            List<String> deviceMethods = new ArrayList<String>(Arrays.asList(_cdPlayer.getOptions()));
            for (int i = 0; i < interfaceMethods.length; i++) {
                assertThat(deviceMethods.contains(interfaceMethods[i].getName())).describedAs(testName).isEqualTo(true);
            }
        }
    }
    static Stream<Arguments> getOptionsTestData () {
        CDPlayer cdPlayer1 = new CDPlayer();
        return Stream.of(
                Arguments.of("[getOptions(): shouldNotReturnNull] => ReturnValueNotNull", "ReturnValueNotNull", cdPlayer1),
                Arguments.of("[getOptions(): shouldReturnAnArrayWithLengthGreaterThen0] => ArrayLengthGreaterThen0", "ArrayLengthGreaterThen0", cdPlayer1),
                Arguments.of("[getOptions(): shouldReturnAnArrayWithInAllInterfaceMethods] => ArrayContainsInterfaceMethods", "ArrayContainsInterfaceMethods", cdPlayer1)
        );
    }

    @Test
    void getVolumeReturnValueBetween0And100(){
        CDPlayer cdPlayer1 = new CDPlayer();
        boolean volumeIstInValueRange=false;
        int volume=cdPlayer1.getVolume();
        if(volume>=0 && volume <=100){
            volumeIstInValueRange=true;
        }
        assertThat(volumeIstInValueRange).isEqualTo(true);
    }

    @ParameterizedTest
    @MethodSource("getInfoTestData")
    void getInfoTest(String testName, CDPlayer _cdPlayer,Exception exception , String expectedResult){
        Exception newException=assertThrows(exception.getClass(),()->_cdPlayer.getInfoText());
        assertEquals(ReturnValueNullException.class, newException.getClass());
    }
    static Stream<Arguments> getInfoTestData () {

        CDPlayer cdPlayer1 = new CDPlayer();

        return Stream.of(
                Arguments.of("[getInfoText() by infoText=null ] => shouldThrowReturnValueNullException", cdPlayer1,new ReturnValueNullException(),"")
        );
    }

}