def test_ismember_yes(self, dtype, writable):
N = 127
arr = np.arange(N).astype(dtype)
values = np.arange(N).astype(dtype)
arr.flags.writeable = writable
values.flags.writeable = writable
result = ht.ismember(arr, values)
expected = np.ones_like(values, dtype=np.bool_)
tm.assert_numpy_array_equal(result, expected)
def test_ismember_no(self, dtype):
arr = np.array([np.nan, np.nan, np.nan], dtype=dtype)
values = np.array([1], dtype=dtype)
result = ht.ismember(arr, values)
expected = np.array([False, False, False], dtype=np.bool_)
tm.assert_numpy_array_equal(result, expected)