test_command fix
@@ -181,6 +181,7 @@ def test_calling_start_on_command_sends_command_string_over_connection(do_nothin
with ext_io.open():
ping.start() # start background-run of command-future
assert b'ping localhost' in ext_io.remote_endpoint()
+ ping.cancel()
def test_command_is_running_after_sending_command_string(do_nothing_command__for_major_base_class):
