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feat(test): add unit test for quaternion LookRotation

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Added TestLookRotation method to TestQuaternion class. This test ensures quaternion.LookRotation produces a normalized quaternion and correctly rotates the forward and up vectors as expected.
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Misaki
2026-04-07 20:15:20 +09:00
parent 81eb5cb4cf
commit 7ea7e8aa9e
1 changed files with 23 additions and 0 deletions
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Misaki.HighPerformance.Test/UnitTest/Mathematics/TestQuaternion.cs
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@@ -217,4 +217,27 @@ public class TestQuaternion
Assert.AreEqual(q2.value.z, end.value.z, 1e-6f);
Assert.AreEqual(q2.value.w, end.value.w, 1e-6f);
}
[TestMethod]
public void TestLookRotation()
{
var forward = new float3(0f, 0f, -1f);
var up = new float3(0f, 1f, 0f);
var q = quaternion.LookRotation(forward, up);
// Should be unit quaternion
Assert.AreEqual(1f, math.length(q.value), 1e-6f);
// Should rotate (0,0,1) to approximately (0,0,1)
var rotatedForward = math.mul(q, forward);
Assert.AreEqual(0f, rotatedForward.x, 1e-6f);
Assert.AreEqual(0f, rotatedForward.y, 1e-6f);
Assert.AreEqual(1f, rotatedForward.z, 1e-6f);
// Should rotate (0,1,0) to approximately (0,1,0)
var rotatedUp = math.mul(q, up);
Assert.AreEqual(0f, rotatedUp.x, 1e-6f);
Assert.AreEqual(1f, rotatedUp.y, 1e-6f);
Assert.AreEqual(0f, rotatedUp.z, 1e-6f);
}
}