def test_token_is_valid(app):
    with set_config(app, AUTH_TOKENS='token-1:token-2'):
        assert token_is_valid('token-1')
        assert token_is_valid('token-2')
def test_empty_token_is_invalid(app):
    with set_config(app, AUTH_TOKENS='valid'):
        assert not token_is_valid(None)
        assert not token_is_valid('')
def test_unknown_token_is_not_valid(app):
    with set_config(app, AUTH_TOKENS='valid'):
        assert not token_is_valid('invalid')