### Question:
AnimationUtils { public static float framesToSeconds(int frame, int fps) { return ((float) frame / fps); }  static void scaleAnimation(Animation animation, float scale); static float framesToSeconds(int frame, int fps); static float framesToSeconds(int frame); static int secondsToFrame(float seconds, int fps); static float truncate(float number); static float truncate(float number, int precision);  }### Answer:
@Test public void test2() { assertThat(AnimationUtils.framesToSeconds(0, 30), IsEqual.equalTo(0f)); assertThat(AnimationUtils.framesToSeconds(1, 30), IsEqual.equalTo(1f / 30f)); assertThat(AnimationUtils.framesToSeconds(30, 30), IsEqual.equalTo(1f)); }