GraphicsTester: additional rounded rectangle tests

Add tests for rounded rectangles with user-defined distinct horizontal and vertical radii

samples/GraphicsTester.Portable/Scenarios/DrawRoundedRectangles.cs

@@ -20,6 +20,7 @@ namespace GraphicsTester.Scenarios
 			DrawShadowedRect(canvas);
 			DrawRoundedRectanglesWithDifferentStrokeLocations(canvas);
 			DrawRoundedRectWithZeroAndLargeRadius(canvas);
+			DrawRoundedWithDifferentXYRadius(canvas);
 			canvas.RestoreState();
 
 			canvas.DrawRoundedRectangle(50.5f, 30.5f, 150, 15, 5);
@@ -103,5 +104,11 @@ namespace GraphicsTester.Scenarios
 			canvas.DrawRoundedRectangle(250.5f, 700.5f, 150, 20, 0);
 			canvas.DrawRoundedRectangle(450.5f, 700.5f, 150, 20, 50);
 		}
+
+		private void DrawRoundedWithDifferentXYRadius(ICanvas canvas)
+		{
+			RectangleF rect = new RectangleF(275, 400, 100, 100);
+			canvas.DrawRoundedRectangle(rect, xRadius: 20, yRadius: 40);
+		}
 	}
 }

samples/GraphicsTester.Portable/Scenarios/FillRoundedRectangles.cs

@@ -15,6 +15,7 @@ namespace GraphicsTester.Scenarios
 			FillRoundedRectanglesWithAlpha(canvas);
 			FillShadowedRect(canvas);
 			FillRoundedRectWithZeroAndLargeRadius(canvas);
+			FillRoundedWithDifferentXYRadius(canvas);
 		}
 
 		private static void FillShadowedRect(ICanvas canvas)
@@ -59,5 +60,11 @@ namespace GraphicsTester.Scenarios
 			canvas.FillRoundedRectangle(250.5f, 700.5f, 150, 20, 0);
 			canvas.FillRoundedRectangle(450.5f, 700.5f, 150, 20, 50);
 		}
+
+		private void FillRoundedWithDifferentXYRadius(ICanvas canvas)
+		{
+			RectangleF rect = new RectangleF(275, 400, 100, 100);
+			canvas.FillRoundedRectangle(rect, xRadius: 20, yRadius: 40);
+		}
 	}
 }