[wip] Filter testing architecture

[wolovim]

What was wrong?

"Testing event filters sucks." - @pipermerriam, issue #1635

How was it fixed?

Pulled in large chunks of cthaeh to load logs into an in-memory sqlite db and retrieve them when methods like getLogs are called. test_filters_using_db.py contains some new tests which leverage all that new business.

Note sure at what point this is merge-ready, so getting this up to start the discussion. Feedback of all sizes welcome.

Todo:

• Awaiting model updates or package release from @pipermerriam
• Integration with eth-orm
• Add entry to the release notes

Cute Animal Picture

[pipermerriam]

I believe I'm at a point with the database models that I've created in cthaeh to pull them out and release them as a standalone package. I don't think I'll get to it today but I think I can have it done by next week.

[wolovim]

@pipermerriam 👍 finally resolved the lint-pocalypse, so this will sit on the shelf until then.

[pacrob]

stale!