launch_testing.io_handler module

A module providing process IO capturing classes.

To prevent pytest from rewriting this module assertions, please PYTEST_DONT_REWRITE. See https://docs.pytest.org/en/latest/assert.html#disabling-assert-rewriting for further reference.

class launch_testing.io_handler.ActiveIoHandler

Bases: object

Holds stdout captured from running processes.

The ActiveIoHandler is meant to be used when capturing is still in progress and provides additional synchronization, as well as methods to wait on incoming IO

append(process_io)

assertWaitFor(*args, **kwargs)

property io_event

process_names()

Get the name of all unique processes that generated IO.

Returns [string]:

processes()

Get an iterable of unique launch.events.process.RunningProcessEvent objects.

Returns [launch.actions.ExecuteProcess]:

track(process_name)

waitFor(expected_output, process=None, cmd_args=None, *, strict_proc_matching=True, output_filter=None, timeout=10, strip_ansi_escape_sequences=True, stream='stderr')

class launch_testing.io_handler.IoHandler