def test_has_successfull_false(self):
shell = Shell(TestShell.cmd, stdout=True)
exception = CalledProcessError(returncode=1, cmd='')
with patch('subprocess.check_output', side_effect=exception):
self.assertFalse(shell.was_successful())
def test_was_successfull_true(self):
shell = Shell(TestShell.cmd, stdout=True)
with patch('subprocess.check_output', return_value=''):
self.assertTrue(shell.was_successful())
