HitShape Unit Tests

The shapes should accurately calculate their distancce from a point.

OpenRA.Test/OpenRA.Mods.Common/ShapeTest.cs

@@ -0,0 +1,95 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using NUnit.Framework;
+using OpenRA.Mods.Common.HitShapes;
+
+namespace OpenRA.Test
+{
+	[TestFixture]
+	public class ShapeTest
+	{
+		IHitShape shape;
+
+		[TestCase(TestName = "CircleShape reports accurate distance")]
+		public void Circle()
+		{
+			shape = new CircleShape(new WDist(1234));
+			shape.Initialize();
+
+			Assert.That(shape.DistanceFromEdge(new WVec(100, 100, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(1000, 0, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(2000, 2000, 0)).Length,
+				Is.EqualTo(1594));
+
+			Assert.That(new CircleShape(new WDist(73))
+				.DistanceFromEdge(new WVec(150, -100, 0)).Length,
+				Is.EqualTo(107));
+
+			Assert.That(new CircleShape(new WDist(55))
+				.DistanceFromEdge(new WVec(30, -45, 0)).Length,
+				Is.EqualTo(0));
+		}
+
+		[TestCase(TestName = "CapsuleShape report accurate distance")]
+		public void Capsule()
+		{
+			shape = new CapsuleShape(new int2(-50, 0), new int2(500, 235), new WDist(50));
+			shape.Initialize();
+
+			Assert.That(shape.DistanceFromEdge(new WVec(300, 100, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(-50, 0, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(518, 451, 0)).Length,
+				Is.EqualTo(166));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(-50, -50, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(-41, 97, 0)).Length,
+				Is.EqualTo(35));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(339, 41, 0)).Length,
+				Is.EqualTo(64));
+		}
+
+		[TestCase(TestName = "RectangleShape report accurate distance")]
+		public void Rectangle()
+		{
+			shape = new RectangleShape(new int2(-123, -456), new int2(100, 100));
+			shape.Initialize();
+
+			Assert.That(shape.DistanceFromEdge(new WVec(10, 10, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(-100, 50, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(0, 200, 0)).Length,
+				Is.EqualTo(100));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(123, 0, 0)).Length,
+				Is.EqualTo(24));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(-100, -400, 0)).Length,
+				Is.EqualTo(0));
+
+			Assert.That(shape.DistanceFromEdge(new WVec(-1000, -400, 0)).Length,
+				Is.EqualTo(877));
+		}
+	}
+}