wehub-resource-sync
26 lines
664 B
Python
Executable File
26 lines
664 B
Python
Executable File
import unittest
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import numpy as np
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from prml import nn
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class TestSum(unittest.TestCase):
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def test_sum(self):
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x = np.random.rand(5, 1, 2)
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xp = nn.Parameter(x)
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z = xp.sum()
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self.assertEqual(z.value, x.sum())
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z.backward()
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self.assertTrue((xp.grad == np.ones((5, 1, 2))).all())
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xp.cleargrad()
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z = xp.sum(axis=0, keepdims=True)
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self.assertEqual(z.shape, (1, 1, 2))
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self.assertTrue((z.value == x.sum(axis=0, keepdims=True)).all())
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z.backward(np.ones((1, 1, 2)))
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self.assertTrue((xp.grad == np.ones((5, 1, 2))).all())
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if __name__ == '__main__':
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unittest.main()
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