@Test public void testSetInterpolator() {

	// Arrange:
	final Animator mockAnimator = mock(Animator.class);
	final AnimatorWrapper wrapper = new AnimatorWrapper(mockAnimator);
	final TimeInterpolator mockInterpolator = mock(TimeInterpolator.class);
	// Act:
	wrapper.setInterpolator(mockInterpolator);
	// Assert:
	verify(mockAnimator).setInterpolator(mockInterpolator);
}