nucypher/tests/cli/test_main.py

"""
This file is part of nucypher.

nucypher is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

nucypher is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with nucypher.  If not, see <https://www.gnu.org/licenses/>.
"""


from click.testing import CliRunner

from nucypher.cli import cli


def test_help_message():
    runner = CliRunner()
    result = runner.invoke(cli, ['--help'], catch_exceptions=False)

    assert result.exit_code == 0
    assert 'Usage: cli [OPTIONS] COMMAND [ARGS]' in result.output, 'Missing or invalid help text was produced.'