def test_format_command_with_pairs(self):
ret = format_command('echo {0}', [[1], [2], [3], [4]])
self.assertEqual(ret, ['echo 1', 'echo 2', 'echo 3', 'echo 4'])
def test_format_command_raises_runtimeerror_when_invalid_amount_of_arguments(self):
with self.assertRaises(RuntimeError):
format_command('echo {0} {1}', [[1]])
def test_format_command_formats_command_in_right_order(self):
ret = format_command('echo {3} {1} {2} {0}', [[1, 2, 3, 4]])
self.assertEqual(ret, ['echo 4 2 3 1'])