forked from bartvdbraak/blender
164 lines
4.6 KiB
Python
164 lines
4.6 KiB
Python
import unittest
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from test import support
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from mathutils import Matrix, Vector
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class MatrixTesting(unittest.TestCase):
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def test_matrix_column_access(self):
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#mat =
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#[ 1 2 3 4 ]
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#[ 1 2 3 4 ]
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#[ 1 2 3 4 ]
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mat = Matrix(((1, 11, 111),
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(2, 22, 222),
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(3, 33, 333),
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(4, 44, 444)))
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self.assertEqual(mat[0], Vector((1, 11, 111)))
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self.assertEqual(mat[1], Vector((2, 22, 222)))
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self.assertEqual(mat[2], Vector((3, 33, 333)))
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self.assertEqual(mat[3], Vector((4, 44, 444)))
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def test_item_access(self):
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args = ((1, 4, 0, -1),
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(2, -1, 2, -2),
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(0, 3, 8, 3),
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(-2, 9, 1, 0))
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mat = Matrix(args)
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for row in range(4):
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for col in range(4):
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self.assertEqual(mat[row][col], args[row][col])
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self.assertEqual(mat[0][2], 0)
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self.assertEqual(mat[3][1], 9)
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self.assertEqual(mat[2][3], 3)
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self.assertEqual(mat[0][0], 1)
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self.assertEqual(mat[3][3], 0)
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def test_item_assignment(self):
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mat = Matrix() - Matrix()
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indices = (0, 0), (1, 3), (2, 0), (3, 2), (3, 1)
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checked_indices = []
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for row, col in indices:
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mat[row][col] = 1
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for row in range(4):
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for col in range(4):
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if mat[row][col]:
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checked_indices.append((row, col))
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for item in checked_indices:
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self.assertIn(item, indices)
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def test_matrix_to_3x3(self):
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#mat =
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#[ 1 2 3 4 ]
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#[ 2 4 6 8 ]
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#[ 3 6 9 12 ]
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#[ 4 8 12 16 ]
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mat = Matrix(tuple((i, 2 * i, 3 * i, 4 * i) for i in range(1, 5)))
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mat_correct = Matrix(((1, 2, 3), (2, 4, 6), (3, 6, 9)))
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self.assertEqual(mat.to_3x3(), mat_correct)
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def test_matrix_to_translation(self):
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mat = Matrix()
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mat[0][3] = 1
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mat[1][3] = 2
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mat[2][3] = 3
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self.assertEqual(mat.to_translation(), Vector((1, 2, 3)))
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def test_matrix_translation(self):
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mat = Matrix()
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mat.translation = Vector((1, 2, 3))
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self.assertEqual(mat[0][3], 1)
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self.assertEqual(mat[1][3], 2)
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self.assertEqual(mat[2][3], 3)
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def test_non_square_mult(self):
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mat1 = Matrix(((1, 2, 3),
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(4, 5, 6)))
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mat2 = Matrix(((1, 2),
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(3, 4),
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(5, 6)))
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prod_mat1 = Matrix(((22, 28),
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(49, 64)))
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prod_mat2 = Matrix(((9, 12, 15),
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(19, 26, 33),
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(29, 40, 51)))
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self.assertEqual(mat1*mat2, prod_mat1)
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self.assertEqual(mat2 * mat1, prod_mat2)
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def test_mat4x4_vec3D_mult(self):
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mat = Matrix(((1, 0, 2, 0),
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(0, 6, 0, 0),
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(0, 0, 1, 1),
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(0, 0, 0, 1)))
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vec = Vector((1, 2, 3))
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prod_mat_vec = Vector((7, 12, 4))
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prod_vec_mat = Vector((1, 12, 5))
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self.assertEqual(mat * vec, prod_mat_vec)
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self.assertEqual(vec * mat, prod_vec_mat)
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def test_mat_vec_mult(self):
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mat1 = Matrix()
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vec = Vector((1, 2))
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self.assertRaises(ValueError, mat1.__mul__, vec)
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self.assertRaises(ValueError, vec.__mul__, mat1)
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mat2 = Matrix(((1, 2),
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(-2, 3)))
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prod = Vector((5, 4))
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self.assertEqual(mat2 * vec, prod)
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def test_matrix_inverse(self):
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mat = Matrix(((1, 4, 0, -1),
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(2, -1, 2, -2),
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(0, 3, 8, 3),
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(-2, 9, 1, 0)))
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inv_mat = (1 / 285) * Matrix(((195, -57, 27, -102),
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(50, -19, 4, 6),
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(-60, 57, 18, 27),
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(110, -133, 43, -78)))
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self.assertEqual(mat.inverted(), inv_mat)
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def test_matrix_mult(self):
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mat = Matrix(((1, 4, 0, -1),
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(2, -1, 2, -2),
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(0, 3, 8, 3),
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(-2, 9, 1, 0)))
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prod_mat = Matrix(((11, -9, 7, -9),
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(4, -3, 12, 6),
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(0, 48, 73, 18),
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(16, -14, 26, -13)))
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self.assertEqual(mat * mat, prod_mat)
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def test_main():
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try:
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support.run_unittest(MatrixTesting)
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except:
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import traceback
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traceback.print_exc()
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# alert CTest we failed
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import sys
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sys.exit(1)
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if __name__ == '__main__':
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test_main()
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