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MLEM/Tests/NumberTests.cs

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using Microsoft.Xna.Framework;
using MLEM.Extensions;
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using MLEM.Misc;
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using NUnit.Framework;
namespace Tests {
public class NumberTests {
[Test]
public void TestRounding() {
Assert.AreEqual(1.25F.Floor(), 1);
Assert.AreEqual(-1.25F.Floor(), -1);
Assert.AreEqual(1.25F.Ceil(), 2);
Assert.AreEqual(-1.25F.Ceil(), -2);
Assert.AreEqual(new Vector2(5, 2.5F).FloorCopy(), new Vector2(5, 2));
Assert.AreEqual(new Vector2(5, 2.5F).CeilCopy(), new Vector2(5, 3));
Assert.AreEqual(new Vector2(5.25F, 2).FloorCopy(), new Vector2(5, 2));
Assert.AreEqual(new Vector2(5.25F, 2).CeilCopy(), new Vector2(6, 2));
}
[Test]
public void TestEquals() {
Assert.IsTrue(0.25F.Equals(0.26F, 0.01F));
Assert.IsFalse(0.25F.Equals(0.26F, 0.009F));
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Assert.IsTrue(new Vector2(0.25F, 0).Equals(new Vector2(0.3F, 0), 0.1F));
Assert.IsFalse(new Vector2(0.25F, 0.5F).Equals(new Vector2(0.3F, 0.25F), 0.1F));
Assert.IsTrue(new Vector3(0.25F, 0, 3.5F).Equals(new Vector3(0.3F, 0, 3.45F), 0.1F));
Assert.IsFalse(new Vector3(0.25F, 0.5F, 0).Equals(new Vector3(0.3F, 0.25F, 0), 0.1F));
Assert.IsTrue(new Vector4(0.25F, 0, 3.5F, 0.75F).Equals(new Vector4(0.3F, 0, 3.45F, 0.7F), 0.1F));
Assert.IsFalse(new Vector4(0.25F, 0.5F, 0, 1).Equals(new Vector4(0.3F, 0.25F, 0, 0.9F), 0.1F));
}
[Test]
public void TestPointExtensions() {
Assert.AreEqual(new Point(4, 3).Multiply(3), new Point(12, 9));
Assert.AreEqual(new Point(17, 12).Divide(3), new Point(5, 4));
Assert.AreEqual(new Point(4, 12).Transform(Matrix.CreateTranslation(2, 0, 0) * Matrix.CreateScale(2, 2, 2)), new Point(12, 24));
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}
[Test]
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public void TestMatrixOps([Range(0.5F, 2, 0.5F)] float scale, [Range(-1, 1, 1F)] float rotationX) {
var matrix = Matrix.CreateRotationX(rotationX) * Matrix.CreateScale(scale, scale, scale);
Assert.IsTrue(matrix.Scale().Equals(new Vector3(scale), 0.001F), $"{matrix.Scale()} does not equal {new Vector2(scale)}");
Assert.AreEqual(matrix.Rotation(), Quaternion.CreateFromAxisAngle(Vector3.UnitX, rotationX));
}
[Test]
public void TestPenetrate() {
new RectangleF(2, 2, 4, 4).Penetrate(new RectangleF(3, 2, 4, 4), out var normal, out var penetration);
Assert.AreEqual(normal, new Vector2(1, 0));
Assert.AreEqual(penetration, 3);
new RectangleF(-10, 10, 5, 5).Penetrate(new RectangleF(25, 25, 10, 10), out normal, out penetration);
Assert.AreEqual(normal, Vector2.Zero);
Assert.AreEqual(penetration, 0);
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}
}
}