[lang-ref] ( string_is_empty ) ( python )

@pytest.mark.parametrize(
     's, expected',
    [
        ('', True),
        (' ', False),
        ('a', False),
    ],
)
def test_string_is_empty(s, expected):
    # s == ''
    is_empty = (s == '')
    assert is_empty == expected

    is_empty = (len(s) == 0)
    assert is_empty == expected