Method test_win32_duplicate_envs

Lib/test/test_subprocess.py:805–815

(self)

    @unittest.skipUnless(sys.platform == "win32", "Windows only issue")
    def test_win32_duplicate_envs(self):
        newenv = os.environ.copy()
        newenv["fRUit"] = "cherry"
        newenv["fruit"] = "lemon"
        newenv["FRUIT"] = "orange"
        newenv["frUit"] = "banana"
        with subprocess.Popen(["CMD", "/c", "SET", "fruit"],
                              stdout=subprocess.PIPE,
                              env=newenv) as p:
            stdout, _ = p.communicate()
            self.assertEqual(stdout.strip(), b"frUit=banana")

    # Windows requires at least the SYSTEMROOT environment variable to start
    # Python