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45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
# Copyright © 2023 Apple Inc.
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import mlx.utils
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import mlx_tests
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class TestBroadcast(mlx_tests.MLXTestCase):
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def test_broadcast_shapes(self):
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# Basic broadcasting
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self.assertEqual(mlx.utils.broadcast_shapes((1, 2, 3), (3,)), (1, 2, 3))
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self.assertEqual(mlx.utils.broadcast_shapes((4, 1, 6), (5, 6)), (4, 5, 6))
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self.assertEqual(mlx.utils.broadcast_shapes((5, 1, 4), (1, 3, 4)), (5, 3, 4))
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# Multiple arguments
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self.assertEqual(mlx.utils.broadcast_shapes((1, 1), (1, 8), (7, 1)), (7, 8))
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self.assertEqual(
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mlx.utils.broadcast_shapes((6, 1, 5), (1, 7, 1), (6, 7, 5)), (6, 7, 5)
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)
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# Same shapes
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self.assertEqual(mlx.utils.broadcast_shapes((3, 4, 5), (3, 4, 5)), (3, 4, 5))
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# Single argument
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self.assertEqual(mlx.utils.broadcast_shapes((2, 3)), (2, 3))
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# Empty shapes
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self.assertEqual(mlx.utils.broadcast_shapes((), ()), ())
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self.assertEqual(mlx.utils.broadcast_shapes((), (1,)), (1,))
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self.assertEqual(mlx.utils.broadcast_shapes((1,), ()), (1,))
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# Broadcasting with zeroes
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self.assertEqual(mlx.utils.broadcast_shapes((0,), (0,)), (0,))
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self.assertEqual(mlx.utils.broadcast_shapes((1, 0, 5), (3, 1, 5)), (3, 0, 5))
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self.assertEqual(mlx.utils.broadcast_shapes((5, 0), (0, 5, 0)), (0, 5, 0))
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# Error cases
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with self.assertRaises(ValueError):
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mlx.utils.broadcast_shapes((3, 4), (4, 3))
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with self.assertRaises(ValueError):
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mlx.utils.broadcast_shapes((2, 3, 4), (2, 5, 4))
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with self.assertRaises(ValueError):
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mlx.utils.broadcast_shapes()
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