package playground; import static org.junit.Assert.assertTrue; import java.awt.Color; import org.junit.jupiter.api.AfterAll; import org.junit.jupiter.api.BeforeAll; import org.junit.jupiter.api.Test; import gameobjects.EgoObject; import gameobjects.GameObject; import gameobjects.RectObject; /** * Tests {@link SpaceInvadersLevel} for *
    *
  1. calcEnemySpeedX() returns the same value as constant SpaceInvadersLevel.ENEMYSPEEDX *
  2. calcEnemySpeedY() returns the same value as constant SpaceInvadersLevel.ENEMYSPEEDY *
  3. calcNrEnemies() returns the same value as constant SpaceInvadersLevel.NR_ENEMIES *
  4. actionIfEnemyIsHit() adds 200 points to score *
  5. actionIfEgoObjectIsHit() reduces number of lives (egoLives) *
* @author jkonert * */ class SpaceInvadersLevelTest { private static SpaceInvadersLevel myLevel; @BeforeAll static void setUpBeforeClass() throws Exception { myLevel = new SpaceInvadersLevel(); SpaceInvadersLevel.setGlobalFlag("egoLives", 5); SpaceInvadersLevel.setGlobalFlag("points", 500); SpaceInvadersLevel.setGlobalFlag("highscore", 5000); } @AfterAll static void tearDownAfterClass() throws Exception { // nothing } @Test void testCalcEnemySpeedX() { assertTrue("EnemySpeedX is as in SpaceInvadersLevel defined", myLevel.calcEnemySpeedX() == SpaceInvadersLevel.ENEMYSPEEDX); } @Test void testCalcEnemySpeedY() { assertTrue("EnemySpeedY is as in SpaceInvadersLevel defined", myLevel.calcEnemySpeedY() == SpaceInvadersLevel.ENEMYSPEEDY); } @Test void testCalcNrEnemies() { assertTrue("NrOfEnemies is as in SpaceInvadersLevel defined", myLevel.calcNrEnemies() == SpaceInvadersLevel.NR_ENEMIES); } @Test void testActionIfEnemyIsHitPointsUp() { Integer numPointsBefore = (Integer)Playground.getGlobalFlag("points"); GameObject dummyShot = new RectObject("shot1", myLevel, 0,0,0,0, 12, 12, Color.WHITE); GameObject dummyEnemy = new RectObject("ego1", myLevel, 0,0,0,0, 12, 12, Color.BLACK); myLevel.addObject(dummyShot); myLevel.addObject(dummyEnemy); myLevel.actionIfEnemyIsHit(dummyEnemy, dummyShot);; // this is the call under test Integer numPointsAfter = (Integer)Playground.getGlobalFlag("points"); // changed? assertTrue("numPoints is up +200 after EnemyIsHit", numPointsAfter == numPointsBefore + 200); // points are set +200 , check. } @Test void testActionIfEgoObjectIsHitLivesDown() { Integer numLivesBefore = (Integer)Playground.getGlobalFlag("egoLives"); GameObject dummyShot = new RectObject("shot1", myLevel, 0,0,0,0, 12, 12, Color.RED); GameObject dummyEgo = new EgoObject("ego1", myLevel, 0,0,0,0, 5); myLevel.addObject(dummyShot); myLevel.actionIfEgoObjectIsHit(dummyShot, dummyEgo); // this is the call under test Integer numLivesAfter = (Integer)Playground.getGlobalFlag("egoLives"); // changed? assertTrue("numLives is reduced by one ifEgoIsHit", numLivesAfter == numLivesBefore - 1); // lives is reduced by one } }