unit test for mathutils python module from Andrew Hale, runs in CTest too

2 files changed, 114 insertions, 0 deletions

diff --git a/source/tests/CMakeLists.txt b/source/tests/CMakeLists.txt
index 40d304ef4b9..74a0ad1c628 100644
--- a/source/tests/CMakeLists.txt
+++ b/source/tests/CMakeLists.txt
@@ -60,6 +60,11 @@ add_test(script_run_operators ${TEST_BLENDER_EXE}
 	--python ${CMAKE_CURRENT_LIST_DIR}/bl_run_operators.py
 )
 
+# test running mathutils testing script
+add_test(script_pyapi_mathutils ${TEST_BLENDER_EXE}
+	--python ${CMAKE_CURRENT_LIST_DIR}/bl_pyapi_mathutils.py
+)
+
 # ------------------------------------------------------------------------------
 # IO TESTS
 
diff --git a/source/tests/bl_pyapi_mathutils.py b/source/tests/bl_pyapi_mathutils.py
new file mode 100644
index 00000000000..f1d6d96c68b
--- /dev/null
+++ b/source/tests/bl_pyapi_mathutils.py
@@ -0,0 +1,109 @@
+import unittest
+from test import support
+from mathutils import Matrix, Vector
+
+
+class MatrixTesting(unittest.TestCase):
+    def test_matrix_column_access(self):
+        #mat =
+        #[ 1  2  3  4 ]
+        #[ 1  2  3  4 ]
+        #[ 1  2  3  4 ]
+        mat = Matrix(((1, 11, 111),
+                      (2, 22, 222),
+                      (3, 33, 333),
+                      (4, 44, 444)))
+
+        self.assertEqual(mat[0], Vector((1, 11, 111)))
+        self.assertEqual(mat[1], Vector((2, 22, 222)))
+        self.assertEqual(mat[2], Vector((3, 33, 333)))
+        self.assertEqual(mat[3], Vector((4, 44, 444)))
+
+    def test_item_access(self):
+        args = ((1, 4, 0, -1),
+                (2, -1, 2, -2),
+                (0, 3, 8, 3),
+                (-2, 9, 1, 0))
+
+        mat = Matrix(args)
+
+        for i in range(4):
+            for j in range(4):
+                self.assertEqual(mat[i][j], args[i][j])
+
+        self.assertEqual(mat[0][2], 0)
+        self.assertEqual(mat[3][1], 9)
+        self.assertEqual(mat[2][3], 3)
+        self.assertEqual(mat[0][0], 1)
+        self.assertEqual(mat[3][3], 0)
+
+    def test_item_assignment(self):
+        mat = Matrix() - Matrix()
+        indices = (0, 0), (1, 3), (2, 0), (3, 2), (3, 1)
+        checked_indices = []
+        for col, row in indices:
+            mat[col][row] = 1
+
+        for col in range(4):
+            for row in range(4):
+                if mat[col][row]:
+                    checked_indices.append((col, row))
+
+        for item in checked_indices:
+            self.assertIn(item, indices)
+
+    def test_matrix_to_3x3(self):
+        #mat =
+        #[ 1  2  3  4  ]
+        #[ 2  4  6  8  ]
+        #[ 3  6  9  12 ]
+        #[ 4  8  12 16 ]
+        mat = Matrix(tuple((i, 2 * i, 3 * i, 4 * i) for i in range(1, 5)))
+        mat_correct = Matrix(((1, 2, 3), (2, 4, 6), (3, 6, 9)))
+        self.assertEqual(mat.to_3x3(), mat_correct)
+
+    def test_matrix_to_translation(self):
+        mat = Matrix()
+        mat[3] = (1, 2, 3, 4)
+        self.assertEqual(mat.to_translation(), Vector((1, 2, 3)))
+
+    def test_matrix_inverse(self):
+        mat = Matrix(((1, 4, 0, -1),
+                      (2, -1, 2, -2),
+                      (0, 3, 8, 3),
+                      (-2, 9, 1, 0)))
+
+        inv_mat = (1 / 285) * Matrix(((195, -57, 27, -102),
+                                      (50, -19, 4, 6),
+                                      (-60, 57, 18, 27),
+                                      (110, -133, 43, -78)))
+
+        self.assertEqual(mat.inverted(), inv_mat)
+
+    def test_matrix_mult(self):
+        mat = Matrix(((1, 4, 0, -1),
+                      (2, -1, 2, -2),
+                      (0, 3, 8, 3),
+                      (-2, 9, 1, 0)))
+
+        prod_mat = Matrix(((11, -9, 7, -9),
+                           (4, -3, 12, 6),
+                           (0, 48, 73, 18),
+                           (16, -14, 26, -13)))
+
+        self.assertEqual(mat * mat, prod_mat)
+
+
+def test_main():
+    try:
+        support.run_unittest(MatrixTesting)
+    except:
+        import traceback
+        traceback.print_exc()
+
+        # alert CTest we failed
+        import sys
+        sys.exit(1)
+
+if __name__ == '__main__':
+    test_main()