'Test missing command'

def test_missing_command(self):

    path = os.path.join('non-existant', str(uuid.uuid4()))
    self.assertFalse(os.path.exists(path))
    cmd = BuildCommand(path)
    cmd.run()
    missing_re = re.compile('(?:No    such    file    or    directory|not    found)')
    self.assertRegexpMatches(cmd.error, missing_re)
