/// <summary>
/// Tests if awaiting a specified amount of time for a single animation lasting the
/// specified amount of time waits for the appropriate amount of time.
/// </summary>
///
/// <param name="animationDuration">
/// the duration of the animation in milliseconds.
/// </param>
///
/// <param name="awaitduration">
/// the amount of time to await after the animation finishes.
/// </param>
public void AnimationAwaitTestCase(long animationDuration, int awaitduration)
{
// Setup the animation.
var animation = new ValueAnimation(0, 0, animationDuration);
// Time the waiting time.
var stopwatch = new Stopwatch();
// Start the animation.
animation.Start();
stopwatch.Start();
// Await
animation.Await(awaitduration);
// Stop the stopwatch.
stopwatch.Stop();
// The error must be within the acceptable amount.
var elapsed = stopwatch.ElapsedMilliseconds;
var error = Math.Abs(elapsed - animationDuration) - awaitduration;
var acceptableError = Animator.Instance.FrameDuration;
Assert.IsTrue(
error <= acceptableError,
String.Format(
"Waited for {0} milliseconds instead of {1} milliseconds for an animation lasting {2} "
+ "milliseconds and await time of {3} milliseconds with an allotted error of {4} milliseconds.",
elapsed,
animationDuration + awaitduration,
animationDuration,
awaitduration,
acceptableError
)
);
}