import pytest from hypothesis import given from hypothesis.extra.array_api import make_strategies_namespace from numpy import array_api as xp xps = make_strategies_namespace(xp) @pytest.mark.parametrize("func", [xp.unique_all, xp.unique_inverse]) @given(xps.arrays(dtype=xps.scalar_dtypes(), shape=xps.array_shapes())) def test_inverse_indices_shape(func, x): """ Inverse indices share shape of input array See https://github.com/numpy/numpy/issues/20638 """ out = func(x) assert out.inverse_indices.shape == x.shape