leezu commented on a change in pull request #18656:
URL: https://github.com/apache/incubator-mxnet/pull/18656#discussion_r463265822
##########
File path: tests/python/unittest/test_numpy_ndarray.py
##########
@@ -1369,3 +1369,31 @@ def test_dlpack(dtype, size):
same(a_np+1, b)
same(a_np+2, c)
same(a_np+2, a_copy)
+
+@use_np
+@pytest.mark.parametrize('np_array', [
+ # ordinary numpy array
+ _np.array([[1, 2], [3, 4], [5, 6]], dtype="float32"),
+ # 0-dim
+ _np.array((1, )).reshape(()),
+ # 0-size
+ _np.array(()).reshape((1, 0, 2)),
+])
+@pytest.mark.parametrize('zero_copy', [False, True])
+def test_from_numpy(np_array, zero_copy):
+ # Test zero_copy
+ mx_array = mx.npx.from_numpy(np_array, zero_copy=zero_copy)
+ mx.test_utils.assert_almost_equal(np_array, mx_array.asnumpy())
+
+def test_from_numpy_exception():
+ np_array = _np.array([[1, 2], [3, 4], [5, 6]], dtype="float32")
+ mx_array = mx.npx.from_numpy(np_array)
+ with pytest.raises(ValueError):
+ np_array[2, 1] = 0
Review comment:
Test that no exception is thrown if `zero_copy=False`?
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