def METHOD_NAME(self) -> None:
    """
    If the process environment is not explicitly passed to
    L{ListenFDs.fromEnvironment}, the real process environment dictionary
    is used.
    """
    self.patch(os, "environ", buildEnvironment(5, os.getpid()))
    sddaemon = ListenFDs.fromEnvironment()
    self.assertEqual(list(range(3, 3 + 5)), sddaemon.inheritedDescriptors())