gruppe06-hufflepuff-projekt1-tic-tac-toe/test/GameTest.java

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;

import static org.junit.jupiter.api.Assertions.assertEquals;

/**
 * Klasse GameTest
 *
 * Diese Klasse beinhaltet und führt alle Testfälle für die Klasse GameTest aus
 *
 */
class GameTest {

    private final PrintStream standardOut = System.out;
    private final ByteArrayOutputStream outputStreamCaptor = new ByteArrayOutputStream();

    private Game game = new Game();

    @BeforeEach
    public void beforeEach() {
        game = new Game();
        System.setOut(new PrintStream(outputStreamCaptor));
    }

    @AfterEach
    public void tearDown() {
        System.setOut(standardOut);
    }


    // Konstruktive Testfälle

    /**
     *
     */
    @Test
    public void placeOneField() {
        game.placeField(1);

    }


    @Test
    public void testGameShouldbeTie() {
        game.placeField(1);
        game.placeField(2);
        game.placeField(3);
        game.placeField(5);
        game.placeField(4);
        game.placeField(6);
        game.placeField(8);
        game.placeField(7);
        game.placeField(9);
    }


    // Destruktive Testfälle

    @Test
    public void placeNotExistingField() {

        System.out.println("Hello Baeldung Readers!!");
        System.out.println("Hello Baeldung Readers!!");
        System.out.println("Hello Baeldung Readers!!");
        System.out.println("Hello Baeldung Readers!!");

        assertEquals("Hello Baeldung Readers!!\n" +
                "Hello Baeldung Readers!!\n" +
                "Hello Baeldung Readers!!\n" +
                "Hello Baeldung Readers!!", outputStreamCaptor.toString()
            .trim());
    }

}