From acea7b2e728787a0d83bbf83c8c1f042d2c32e7e Mon Sep 17 00:00:00 2001
From: chai <215380520@qq.com>
Date: Mon, 3 Jun 2024 10:15:45 +0800
Subject: + plugins project

---
 .../tests/MonoGame.Extended.Tests/AngleTest.cs     | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/AngleTest.cs

(limited to 'Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/AngleTest.cs')

diff --git a/Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/AngleTest.cs b/Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/AngleTest.cs
new file mode 100644
index 0000000..2f2762b
--- /dev/null
+++ b/Plugins/MonoGame.Extended/tests/MonoGame.Extended.Tests/AngleTest.cs
@@ -0,0 +1,92 @@
+using Microsoft.Xna.Framework;
+using Xunit;
+
+namespace MonoGame.Extended.Tests
+{
+    public class AngleTest
+    {
+        private const float _delta = 0.00001f;
+        private readonly WithinDeltaEqualityComparer _withinDeltaEqualityComparer = new(_delta);
+
+        [Fact]
+        public void ConstructorTest()
+        {
+            const float value = 0.5f;
+
+            // ReSharper disable once RedundantArgumentDefaultValue
+            var radians = new Angle(value, AngleType.Radian);
+            var degrees = new Angle(value, AngleType.Degree);
+            var gradians = new Angle(value, AngleType.Gradian);
+            var revolutions = new Angle(value, AngleType.Revolution);
+
+            Assert.Equal(0.5f, radians.Radians, _withinDeltaEqualityComparer);
+            Assert.Equal(0.5f, degrees.Degrees, _withinDeltaEqualityComparer);
+            Assert.Equal(0.5f, gradians.Gradians, _withinDeltaEqualityComparer);
+            Assert.Equal(0.5f, revolutions.Revolutions, _withinDeltaEqualityComparer);
+        }
+
+        [Fact]
+        public void ConversionTest()
+        {
+            //from radians
+            var radians = new Angle(MathHelper.Pi);
+            Assert.Equal(180f, radians.Degrees, _withinDeltaEqualityComparer);
+            Assert.Equal(200f, radians.Gradians, _withinDeltaEqualityComparer);
+            Assert.Equal(0.5f, radians.Revolutions, _withinDeltaEqualityComparer);
+
+            //to radians
+            var degrees = new Angle(180f, AngleType.Degree);
+            var gradians = new Angle(200f, AngleType.Gradian);
+            var revolutions = new Angle(0.5f, AngleType.Revolution);
+
+            Assert.Equal(MathHelper.Pi, degrees.Radians, _withinDeltaEqualityComparer);
+            Assert.Equal(MathHelper.Pi, gradians.Radians, _withinDeltaEqualityComparer);
+            Assert.Equal(MathHelper.Pi, revolutions.Radians, _withinDeltaEqualityComparer);
+        }
+
+        [Fact]
+        public void WrapTest()
+        {
+            for (var f = -10f; f < 10f; f += 0.1f)
+            {
+                var wrappositive = new Angle(f);
+                wrappositive.WrapPositive();
+
+                var wrap = new Angle(f);
+                wrap.Wrap();
+
+                Assert.True(wrappositive.Radians >= 0);
+                Assert.True(wrappositive.Radians < 2d * MathHelper.Pi);
+
+                Assert.True(wrap.Radians >= -MathHelper.Pi);
+                Assert.True(wrap.Radians < MathHelper.Pi);
+            }
+        }
+
+        [Fact]
+        public void VectorTest()
+        {
+            var angle = Angle.FromVector(Vector2.One);
+            Assert.Equal(-MathHelper.Pi / 4f, angle.Radians, _withinDeltaEqualityComparer);
+            Assert.Equal(10f, angle.ToVector(10f).Length());
+
+            angle = Angle.FromVector(Vector2.UnitX);
+            Assert.Equal(0, angle.Radians, _withinDeltaEqualityComparer);
+            Assert.True(Vector2.UnitX.EqualsWithTolerence(angle.ToUnitVector()));
+
+            angle = Angle.FromVector(-Vector2.UnitY);
+            Assert.Equal(MathHelper.Pi / 2f, angle.Radians, _withinDeltaEqualityComparer);
+            Assert.True((-Vector2.UnitY).EqualsWithTolerence(angle.ToUnitVector()));
+        }
+
+        [Fact]
+        public void EqualsTest()
+        {
+            var angle1 = new Angle(0);
+            var angle2 = new Angle(MathHelper.Pi * 2f);
+            Assert.True(angle1 == angle2);
+            angle2.Radians = MathHelper.Pi * 4f;
+            Assert.True(angle1.Equals(angle2));
+        }
+    }
+}
-- 
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