public void RectangleByRatio() { var polygon = Shaper.RectangleByRatio(2.0); Assert.Equal(2.0, polygon.Area()); Assert.Contains(polygon.Vertices, p => p.X == 0.0 && p.Y == 0.0); Assert.Contains(polygon.Vertices, p => p.X == 1.0 && p.Y == 0.0); Assert.Contains(polygon.Vertices, p => p.X == 1.0 && p.Y == 2.0); Assert.Contains(polygon.Vertices, p => p.X == 0.0 && p.Y == 2.0); }