previously they were using sample_service fixture under the hood, but
with full permissions added - this works fine, **unless** there's
already a service with the name "sample service" in the database. This
can happen for two reasons:
* A previous test didn't tear down correctly
* This test already invoked the sample_service fixture somehow
If this happens, we just return the existing service, without modifying
its values - values that we might change in tests, such as
research mode or letters permissions.
In the future, we'll have to be vigilant! and aware! and careful! to
not use sample_service if we're doing tests involving letters, since
they create a service with a different name now
previously we didn't do this because the tests all used the same DB
(test_notifications_api), however @minglis shared a snippet that simply
creates one test db per thread.
PEP8 was renamed to pycodestyle; this issue explains why:
https://github.com/PyCQA/pycodestyle/issues/466
This commit changes our tests to use pycodestyle instead of pep8.
It also means:
- making a couple of whitespace changes to appease the linter
- disabling warnings for bare `Except`s (ie `Except` instead of `Except
ValueError`) – this seems like a sensible thing to catch but I’m not
going to make meaningful code changes in this commit
call generate-version-file before tests, since they'll fall over if the version file isn't present
use /Users/leohemsted/.virtualenvs/api rather than looking for ./venv/ - if there's some other venv already active, then don't try and look for a current venv to activate
