# -*- coding: utf-8 -*-

#

# Copyright (C) 2018 Branko Majic

#

# This file is part of Gimmecert.

#

# Gimmecert 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.

#

# Gimmecert 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

# Gimmecert.  If not, see <http://www.gnu.org/licenses/>.

#

import subprocess

def test_cli_works():

    # John is a system integrator that in his line of work often needs

    # to issue certificates for testing. Just recently, he has heard

    # of a new tool called gimmecert that can be used for issuing

    # certificates in test environments that would make his life

    # easier.

    # John goes ahead and installs the tool on his local machine.

    # Before moving on, John decides to quickly test if the package

    # has been installed correctly. Assuming that the command is the

    # same as package name, he runs it.

    process = subprocess.Popen(["gimmecert"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)

    stdout, stderr = process.communicate()

    stdout, stderr = stdout.decode(), stderr.decode()

    # John has a look at output, and notices that no error has been

    # reported. He also verifies the return code is non-zero, just to

    # be on the safe side.

    assert stderr == ''

    assert process.returncode == 0