CTM/test/GamingAreaTest.java

import org.junit.jupiter.api.Test;

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

class GamingAreaTest {

    @Test
    void getPlayingField_returnsPlayingField_returnsArray() {

        //Arrange
        GamingArea ga = new GamingArea(10,10);
        Position[][] playingField;

        //Act
        playingField = ga.getPlayingField();

        //Assert
        assertNotNull(playingField);
    }

    @Test
    void validatePosition_checksPosition_returnsTrue() {

        //Arrange
        GamingArea ga = new GamingArea(10,10);
        boolean expected = true;
        boolean actual;

        //Act
        actual = ga.validatePosition(new Position(4,4));

        //Assert
        assertEquals(expected, actual);
    }
}