Add rotation and projection tests

test/test_matrixmania/test_rot.py

@@ -0,0 +1,36 @@
+
+import math
+
+import pytest
+
+from matrixmania.compute import rot_2D, rot_3D
+
+
+def test_rot_2D():
+    # Arrange
+    angle = math.pi / 2
+    expected = [[0.0, -1.0], [1.0, 0.0]]
+
+    # Act
+    result = rot_2D(angle)
+
+    # Assert
+    for row, expected_row in zip(result, expected):
+        assert row == pytest.approx(expected_row)
+
+
+def test_rot_3D():
+    # Arrange
+    angle = math.pi / 2
+    expected = [
+        [0.0, -1.0, 0.0],
+        [1.0, 0.0, 0.0],
+        [0.0, 0.0, 1.0],
+    ]
+
+    # Act
+    result = rot_3D(angle, "z")
+
+    # Assert
+    for row, expected_row in zip(result, expected):
+        assert row == pytest.approx(expected_row)