Method test_invalid_nesting

numpy/core/tests/test_shape_base.py:740–750

(self, block)

        assert_equal(block(np.eye(3)), np.eye(3))

    def test_invalid_nesting(self, block):
        msg = 'depths are mismatched'
        assert_raises_regex(ValueError, msg, block, [1, [2]])
        assert_raises_regex(ValueError, msg, block, [1, []])
        assert_raises_regex(ValueError, msg, block, [[1], 2])
        assert_raises_regex(ValueError, msg, block, [[], 2])
        assert_raises_regex(ValueError, msg, block, [
            [[1], [2]],
            [[3, 4]],
            [5]  # missing brackets
        ])

    def test_empty_lists(self, block):
        assert_raises_regex(ValueError, 'empty', block, [])