def test_close(self):
from _winreg import OpenKey, CloseKey, FlushKey, QueryInfoKey
key = OpenKey(self.root_key, self.test_key_name)
sub_key = OpenKey(key, "sub_key")
int_sub_key = int(sub_key)
FlushKey(sub_key)
CloseKey(sub_key)
raises(EnvironmentError, QueryInfoKey, int_sub_key)
int_key = int(key)
key.Close()
raises(EnvironmentError, QueryInfoKey, int_key)
key = OpenKey(self.root_key, self.test_key_name)
int_key = key.Detach()
QueryInfoKey(int_key) # works
key.Close()
QueryInfoKey(int_key) # still works
CloseKey(int_key)
raises(EnvironmentError, QueryInfoKey, int_key) # now closed
