…For #709 (#710)

When a file was downloaded successfully, but the size was different than in the message, or the message didn't include a file size, still rename the file and patch content_type.

Thanks very much!

…_WIP

"possibly undeclared" option message should only be printed once.

These were found when developing unit tests

* New sarracenia init tests

* Add pytest-mock requirement for unit tests

* Sarracenia init unit test

This has about 90% coverage

* Update tests README with extra info on config

Debugging tests wasn't working, and it's because generating code coverage while debugging breaks debugging.

* Add try/except around init tests that use xattr module

Apparently it's not a standard module everywhere, so this is a workaround
Could also juse use SR3's filemetadata methods, as they handle things "nicely"

* Expand test debugging (pretty)

Pretty printing wasn't awesome, but now it's better.

* Move Options into a proper class

* Move message creation into method

This ensures that there's no collisions between tests if we modify properties/dict values

* Use deepcopy on WorkList creation in each test

This ensures that they're always unique, and have no collisions between tests

* Fix broken retry tests

* Add Note to top of retry "steps" test

It's disabled, but can serve as good documentation of how to do it.

* Capture test log existance, and assert against that

It used to assert inside the "if" statement, but that would only ever be True. This way, it would be possible for the logs to be missing, and the test will fail.

* Fix redisqueue cleanup test

No longer need to specify a fake server, becasue we're checking the keys a little more inteligently.

* Clean up commented code

* Expand test debugging (pretty)

Pretty printing wasn't awesome, but now it's better.

* Move Options into a proper class

* Move message creation into method

This ensures that there's no collisions between tests if we modify properties/dict values

* Use deepcopy on WorkList creation in each test

This ensures that they're always unique, and have no collisions between tests

* Fix broken retry tests

* Add Note to top of retry "steps" test

It's disabled, but can serve as good documentation of how to do it.

* Capture test log existance, and assert against that

It used to assert inside the "if" statement, but that would only ever be True. This way, it would be possible for the logs to be missing, and the test will fail.

* Fix redisqueue cleanup test

No longer need to specify a fake server, becasue we're checking the keys a little more inteligently.

* Clean up commented code

Also added *all* extra to install all extras.

documenting recent changes (optional filetypes extra) and recent
both languages.