How can I include additional tests if a test passes?

Question

I'm using nose to run some system tests, one of which is to test whether a (config) file exists. If this file exists, I'd like to run some additional tests on it. If not, I'd like to skip a bunch of tests.

What's the best approach to take to make nose include the additional tests if the main test passes?

check the return value of the assert statements and set up a conditional would be the easy way — Stephan, Jul 23 '13 at 14:24
you could create a decorator, where if config file does not exist invoke unittest .skip — dm03514, Jul 23 '13 at 14:28

score 5 · Accepted Answer · answered Jul 23 '13 at 14:28

You could use skipTest from the setUp method in your specific TestCase, like:

import os
from unittest import TestCase

class MyTest(TestCase):
    def setUp(self):
        if not os.path.exists('configfile'):
            return self.skipTest('config file not found')

    def test01(self):
        # Do something with the file
        with open('configfile') as fd:
            self.assertEqual(fd.readlines().__len__(), 0)

test test01 would not run if config file does not exist.

I believe `SkipTest` is an exception that should be raised, not returned. — Dolph, Jul 23 '13 at 14:46

How can I include additional tests if a test passes?

1 Answers1