Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Testing First Steps With Testing Simple Unit Test

Sai Prasad
Sai Prasad
2,292 Points

what is error in this code

class SimpleTestCase(unittest.TestCase): def test_subtraction(self): self.assertEqual(10 - 10, 0)

if name == 'main': unittest.main()

tests.py
import unittest 

class SimpleTestCase(unittest.TestCase):
    def test_subtraction(self):
        self.assertEqual(10 - 10, 0)

if __name__ == '__main__':
    unittest.main()

1 Answer

Travis Alstrand
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Travis Alstrand
Treehouse Teacher

I just played around with this for a bit and I believe it's two things in combination.

  1. It wasn't asking for the dunder main at the bottom so we'll need to remove that

  2. I followed the syntax from the video right before this challenge and it worked so I assume the backend of the challenge is looking for this specifically

import unittest 

class SimpleTestCase(unittest.TestCase):
    def test_subtraction(self):
        assert 10 - 10 == 0