ref(symbolicator): Add tests for LPQ tasks

[relaxolotl]

Adds in some basic tests for the LPQ tasks.

[Swatinem]

lgtm, though I have no idea how the mocking is supposed to work

[Swatinem]

what were you trying to do? :-D

[relaxolotl]

pylance was telling me to use this :(

[flub]

this is unfortunately an anti-pattern. You should make this a fixture:

@pytest.fixture
def store() -> RedisRealtimeMetricsStore:
    return ...

And you'll find you won't need to go back to unittests' TestCase and .tearDown() below.

[relaxolotl]

i can make this a fixture, but i'm unsure how to guarantee that the functions i'm testing will be using that store returned by the fixture.

should scan_for_suspect_projects and update_lpq_eligibility take in an optional store parameter and use that instead of whatever it imports from realtime metrics? or is it possible to return a fixture in a @mock.patch?

[relaxolotl]

a potential workaround to ensure that test data isn't leaking between stores is to just modify the internally-stored prefix on the store. if these tests are being run in parallel that might just cause race issues due to the store flip-flopping between different prefixes...

[relaxolotl]

i figured it out, pushed changes