szha commented on a change in pull request #18852:
URL: https://github.com/apache/incubator-mxnet/pull/18852#discussion_r468945939
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File path: tests/python/unittest/test_numpy_op.py
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@@ -4777,6 +4777,47 @@ def _test_gamma_exception(shape, scale):
assertRaises(ValueError, _test_gamma_exception, shape, scale)
+@with_seed()
+@use_np
+def test_gamma_grad():
+ class TestRandomGamma(HybridBlock):
+ def __init__(self, size, beta):
+ super(TestRandomGamma, self).__init__()
+ self._size = size
+ self._beta = beta
+
+ def hybrid_forward(self, F, a):
+ return F.np.random.gamma(a, self._beta, size=self._size)
+
+ shapes = [(1,), (2, 2), (4, 2, 2)]
+ alpha = [2.0, 5.0, 10.0]
+ beta = [0.5, 1.0, 1.5]
+ for (shape, a, b) in itertools.product(shapes, alpha, beta):
+ for hybridize in [True, False]:
Review comment:
use pytest.mark.parametrize for simplicity and parallelism.
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