launch_testing.event_handlers.stdout_ready_listener module

class launch_testing.event_handlers.stdout_ready_listener.StdoutReadyListener(*args: Any, **kwargs: Any)

Bases: OnProcessIO

Part of a LaunchDescription that can wait for processes to signal ready with stdout.

Some processes signal that they’re ready by printing a message to stdout. This listener can be added to a launch description to wait for a particular process to output a particular bit of text

describe() → Tuple[str, List[launch.some_actions_type.SomeActionsType]]

Return the description list with 0 as a string, and then LaunchDescriptionEntity’s.