@Test
public void resetBonusSpeed() {
ball.increaseBonusSpeed();
ball.increaseBonusSpeed();
ball.resetBonusSpeed();
Assert.assertEquals(0, ball.getBonusSpeed(), 0);
}
@Test
public void increasesBonusSpeed() {
double def = ball.getBonusSpeed();
ball.increaseBonusSpeed();
Assert.assertEquals(1 + def, ball.getBonusSpeed(), 0);
}