Python Tests

Below is a simple example of a Python test. It is strongly recommended that you use unittest for your test cases. It has some nice features.

#!/usr/bin/env python3
""" I3Time tests """

import unittest
from icecube.dataclasses import I3Time

class I3TimeTest(unittest.TestCase):
    def test_print(self):
        t = I3Time(2012, 116640000117197235)
        print(t)
        print(t.__repr__())

        s = str(t)
        subsecond = int(s.split(" ")[-2].split(".")[-1].replace(",", ""))
        self.assertEqual(subsecond, 117197235)

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

Common pitfalls:

• Not Executable

  • Before adding to git : chmod +x path/to/the/test.py

• Not registered

  • Edit your project’s CMakeList.txt file and add it to i3_test_scripts.

  • Many projects just do something like i3_test_scripts(resources/test/*.py) which automatically registers all python scripts in resources/test as tests.