System tests

[stufisher]

Tests are now found via entry points. Also added a pytest style -k to filter tests.
Probably need a config option to disable certain tests, for example once switched to rabbitmq we won't want to run the activemq test.

[Anthchirp]

I would suggest waiting with this until after RabbitMQ is deployed and support for ActiveMQ is deprecated/removed.
The reason for this is not just the ActiveMQ-specific test, but also that the overall layout of tests may change, eg. other ActiveMQ specific bits will fall away (time.sleep) and the transient. queue namespace will no longer be a thing.

[Anthchirp]

Having said that, I'm not hostile to adding this if you're fine with it being completely rewritten later.
I would suggest though to rename the command to zocalo.run_system_tests to match dlstbx and give a stronger sense of what this is about.

[Anthchirp]

Note: The original agreement was that this wouldn't go into the zocalo package, but into zocalo-dls.

[stufisher]

I think its useful outside of dls? I already have this running like you on a 30 min basis to test various services.

I keep the esrf specific system tests in an esrf repo (i.e. we have our own file watcher), but i think the general code is useful to all sites?

[stufisher]

md converted to rst, cli tool renamed

[lgtm-com]

This pull request introduces 1 alert when merging c928650 into 702d3fc - view on LGTM.com

new alerts:

• 1 for Unused local variable