public async Task When_HorizontalScrollViewer_NotScrolled_Left()
{
HorizontalScrollViewer.ChangeView(0, 0, null, disableAnimation: true);
await Task.Delay(25);
var sut = ScrollLeft.TransformToVisual(HorizontalScrollViewerParent);
var result = sut.TransformBounds(new Rect(0, 0, 50, 50));
Assert.AreEqual(new Rect(0, 0, 50, 50), result);
}
public async Task When_HorizontalScrollViewer_NotScrolled_Right()
{
HorizontalScrollViewer.ChangeView(0, 0, null, disableAnimation: true);
await Task.Delay(25);
var sut = ScrollRight.TransformToVisual(HorizontalScrollViewerParent);
var result = sut.TransformBounds(new Rect(ScrollRight.ActualWidth, 0, 50, 50));
Assert.IsTrue(RectCloseComparer.UI.Equals(new Rect(_svExtent, 0, 50, 50), result));
}
public async Task When_HorizontalScrollViewer_Scrolled_Right()
{
var offset = _svExtent - _svWidth;
HorizontalScrollViewer.ChangeView(offset, 0, null, disableAnimation: true);
await Task.Delay(25);
var sut = ScrollRight.TransformToVisual(HorizontalScrollViewerParent);
var result = sut.TransformBounds(new Rect(ScrollRight.ActualWidth, 0, 50, 50));
Assert.AreEqual(new Rect(_svWidth, 0, 50, 50), result);
}
public async Task When_HorizontalScrollViewer_Scrolled_Left()
{
var offset = _svExtent - _svWidth;
HorizontalScrollViewer.ChangeView(offset, 0, null, disableAnimation: true);
await Task.Delay(25);
var sut = ScrollLeft.TransformToVisual(HorizontalScrollViewerParent);
var result = sut.TransformBounds(new Rect(0, 0, 50, 50));
Assert.IsTrue(RectCloseComparer.UI.Equals(new Rect(-offset, 0, 50, 50), result));
}