[Test]
public void ShowRedCircleOnPinch()
{
    new FontText(Font.Default, "Pinch screen to show red circle", Rectangle.One);
    var ellipse = new Ellipse(new Rectangle(0.1f, 0.1f, 0.1f, 0.1f), Color.Red);
    var trigger = new TouchPinchTrigger();
    var touch = Resolve<Touch>();
    new Command(() =>
    //ncrunch: no coverage start
    {
        ellipse.Center = touch.GetPosition(0);
        ellipse.Size = new Size(trigger.ZoomAmount * 0.5f);
    }).Add(trigger);
    //ncrunch: no coverage end
}

[Test]
public void ShowRedCircleOnPinch()
{
    new FontText(Font.Default, "Pinch screen to show red circle", Rectangle.One);
    var ellipse = new Ellipse(new Rectangle(0.1f, 0.1f, 0.1f, 0.1f), Color.Red);
    var trigger = new TouchPinchTrigger();
    var touch = Resolve<Touch>();
    new Command(() =>
    //ncrunch: no coverage start
    {
        ellipse.Center = touch.GetPosition(0);
        ellipse.Size = new Size(trigger.ZoomAmount * 0.5f);
    }).Add(trigger);
    //ncrunch: no coverage end
}

[Test, CloseAfterFirstFrame]
public void PinchDistance()
{
    var trigger = new TouchPinchTrigger();
    var touch = Resolve<Touch>() as MockTouch;
    if (touch == null)
        return; //ncrunch: no coverage
    touch.SetTouchState(0, State.Pressing, new Vector2D(0.4f, 0.5f));
    touch.SetTouchState(1, State.Pressed, new Vector2D(0.5f, 0.5f));
    touch.Update(new[] { trigger });

[Test, CloseAfterFirstFrame]
public void PinchDistance()
{
    var trigger = new TouchPinchTrigger();
    var touch = Resolve<Touch>() as MockTouch;
    if (touch == null)
        return; //ncrunch: no coverage
    touch.SetTouchState(0, State.Pressing, new Vector2D(0.4f, 0.5f));
    touch.SetTouchState(1, State.Pressed, new Vector2D(0.5f, 0.5f));
    touch.Update(new[] { trigger });

[Test, CloseAfterFirstFrame]
public void Creation()
{
    Assert.DoesNotThrow(() => new TouchPinchTrigger());
    Assert.Throws<TouchPinchTrigger.TouchPinchTriggerHasNoParameters>(
        () => new TouchPinchTrigger(new Dictionary<string, string> { { "Button", "Left" } }));
}

[Test, CloseAfterFirstFrame]
public void Creation()
{
    Assert.DoesNotThrow(() => new TouchPinchTrigger());
    Assert.Throws<TouchPinchTrigger.TouchPinchTriggerHasNoParameters>(
        () => new TouchPinchTrigger(new Dictionary<string, string> { { "Button", "Left" } }));
}