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Merge pull request #61013 from Calinou/test-add-transform3d

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Add rotation unit tests for Transform3D
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Rémi Verschelde 2024-04-19 16:26:31 +02:00
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tests/core/math/test_transform_3d.h
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@ -107,6 +107,35 @@ TEST_CASE("[Transform3D] Finite number checks") {
"Transform3D with two components infinite should not be finite.");
}
TEST_CASE("[Transform3D] Rotate around global origin") {
// Start with the default orientation, but not centered on the origin.
// Rotating should rotate both our basis and the origin.
Transform3D transform = Transform3D();
transform.origin = Vector3(0, 0, 1);
Transform3D expected = Transform3D();
expected.origin = Vector3(0, 0, -1);
expected.basis[0] = Vector3(-1, 0, 0);
expected.basis[2] = Vector3(0, 0, -1);
const Transform3D rotated_transform = transform.rotated(Vector3(0, 1, 0), Math_PI);
CHECK_MESSAGE(rotated_transform.is_equal_approx(expected), "The rotated transform should have a new orientation and basis.");
}
TEST_CASE("[Transform3D] Rotate in-place (local rotation)") {
// Start with the default orientation.
// Local rotation should not change the origin, only the basis.
Transform3D transform = Transform3D();
transform.origin = Vector3(1, 2, 3);
Transform3D expected = Transform3D();
expected.origin = Vector3(1, 2, 3);
expected.basis[0] = Vector3(-1, 0, 0);
expected.basis[2] = Vector3(0, 0, -1);
const Transform3D rotated_transform = Transform3D(transform.rotated_local(Vector3(0, 1, 0), Math_PI));
CHECK_MESSAGE(rotated_transform.is_equal_approx(expected), "The rotated transform should have a new orientation but still be based on the same origin.");
}
} // namespace TestTransform3D
#endif // TEST_TRANSFORM_3D_H