1"""Test util, coverage 100%"""
2
3import unittest
4from idlelib import util
5
6
7class UtilTest(unittest.TestCase):
8    def test_extensions(self):
9        for extension in {'.pyi', '.py', '.pyw'}:
10            self.assertIn(extension, util.py_extensions)
11
12
13if __name__ == '__main__':
14    unittest.main(verbosity=2)
15