test/test_mypy.py

   1 from pkg_resources import get_distribution, DistributionNotFound
   2 from subprocess import call
   3 from shutil import which
   4 from unittest import skipUnless, TestCase
   5
   6 mypy_version = 0.0
   7 try:
   8     mypy_version = float(get_distribution("mypy").version)
   9 except DistributionNotFound:
  10     pass
  11
  12
  13 class TypeCheck(TestCase):
  14     @skipUnless(mypy_version >= 0.942, "Do not trust earlier mypy versions")
  15     def test_mypy(self) -> None:
  16         if not which("mypy"):
  17             self.fail("mypy not installed.")
  18         cmd = [
  19             "mypy",
  20             "--strict",
  21             "--ignore-missing-imports",
  22             "gps303",
  23             "test",
  24         ]
  25         self.assertEqual(call(cmd), 0, "mypy typecheck")