public void SourceBoxCoordinatesChanged_When_DragAndDropped() { double sourcePosXBefore = _droppablePage.SourceBox.Location.X; double sourcePosYBefore = _droppablePage.SourceBox.Location.Y; Builder.DragAndDropToOffset(_droppablePage.SourceBox.WrappedElement, 200, 150).Perform(); double sourcePosXAfter = _droppablePage.SourceBox.Location.X; double sourcePosYAfter = _droppablePage.SourceBox.Location.Y; _droppablePage.AssertCoordinates(612, sourcePosXBefore, 3); _droppablePage.AssertCoordinates(302, sourcePosYBefore, 3); _droppablePage.AssertCoordinates(812, sourcePosXAfter, 3); _droppablePage.AssertCoordinates(452, sourcePosYAfter, 3); }