Restructure tests

[rpkilby]

• breaks apart tests module into package
• simplifies test data definitions
• removes 1s timing delay
• tests are no longer distributed with the package on pypi

[philipn]

This looks great, but RE: "tests are no longer distributed with the package on pypi": While most people don't run their dependencies' tests, some people might want to. I noticed that DRF doesn't distribute their tests. Is there a convention here?

[rpkilby]

Hm, I think the general consensus is to exclude tests from the distributed package. Basically,

• Most users don't care about running their dependencies' tests continuously. They rely on code coverage/other metrics, and community reputation/popularity. Essentially, a one time valuation that the code meets their standards.
• For the users that do want to run the tests, this often requires additional test dependencies and setup anyway, so they would need to add a step to their build process.

[rpkilby]

@philipn - Did you have a chance to think about this? After looking at a number of other packages, I'm still of the opinion to not include tests, but it's not a very important issue to me.

[philipn]

Sweet, looks great!