WIP: Tests for ROS 2 action client

[tetov]

Depends on #125 and #130.

What type of change is this?

• Bug fix in a backwards-compatible manner.
• New feature in a backwards-compatible manner.
• Breaking change: bug fix or new feature that involve incompatible API changes.
• Other (e.g. doc update, configuration, etc)

Checklist

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• I added a line to the CHANGELOG.rst file in the Unreleased section under the most fitting heading (e.g. Added, Changed, Removed).
• I ran all tests on my computer and it's all green (i.e. invoke test).
• I ran lint on my computer and there are no errors (i.e. invoke check).
• I have added tests that prove my fix is effective or that my feature works.
• I have added necessary documentation (if appropriate)

[tetov]

Currently looking into how to easily stand up an action server in the ros 2 container. (Problem importing from example interfaces)

[sea-bass]

Currently looking into how to easily stand up an action server in the ros 2 container. (Problem importing from example interfaces)

You can add ros-<version>-example-interfaces to the list here:

roslibpy/docker/ros2/Dockerfile

Line 8 in 75a63b8

ros-iron-rosbridge-suite \

Edit: actually you may want to add rosbridge_test_msgs: https://github.com/RobotWebTools/rosbridge_suite/tree/ros2/rosbridge_test_msgs

Also, ROS 2 Iron has been out of support for over a year now. I would recommend swapping this container out for an active LFS version (humble or jazzy), but ideally to matrix it for all active releases (humble, jazzy, kilted, rolling).

@bjsowa in case you're interested

[sea-bass]

lol never mind, I just saw (and merged) your other PR. Thanks @tetov!