'Insert with non-default axis kwarg'

def test_insert_axis(self, Column):

    c = Column([[1, 2], [3, 4]])
    c1 = c.insert(1, [5, 6], axis=None)
    assert np.all((c1 == [1, 5, 6, 2, 3, 4]))
    c1 = c.insert(1, [5, 6], axis=1)
    assert np.all((c1 == [[1, 5, 2], [3, 6, 4]]))
