1 files changed, 38 insertions, 0 deletions
diff --git a/Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/Particles/Profiles/RingProfileTests.cs b/Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/Particles/Profiles/RingProfileTests.cs
new file mode 100644
index 0000000..a18f5b7
--- /dev/null
+++ b/Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/Particles/Profiles/RingProfileTests.cs
@@ -0,0 +1,38 @@
+using System;
+using MonoGame.Extended.Particles.Profiles;
+using Xunit;
+
+namespace MonoGame.Extended.Tests.Particles.Profiles
+{
+    public class RingProfileTests
+    {
+        [Fact]
+        public void ReturnsOffsetEqualToRadius()
+        {
+            var subject = new RingProfile
+            {
+                Radius = 10f
+            };
+            subject.GetOffsetAndHeading(out var offset, out _);
+
+            var length = Math.Sqrt(offset.X * offset.X + offset.Y * offset.Y);
+            Assert.Equal(10f, length, 6);
+        }
+
+        [Fact]
+        public void WhenRadiateIsTrue_HeadingIsEqualToNormalizedOffset()
+        {
+            var subject = new RingProfile
+            {
+                Radius = 10f,
+                Radiate = Profile.CircleRadiation.Out
+            };
+            subject.GetOffsetAndHeading(out var offset, out var heading);
+
+            Assert.Equal(heading.X, offset.X / 10, 6);
+            Assert.Equal(heading.Y, offset.Y / 10, 6);
+
+        }
+
+    }
+}