Support running subset of pygrackle test without a an editable install #335
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Prior to this PR, our test suite would fail unless we had an editable install. In reality, all test-cases outside of test_models infer the location of the data files based on the location of the test-files, which are never part of the wheel.1 Therefore, this PR introduces a few small tweaks to support testing all test-cases outside of test_models.
Overall, this will be really useful for providing a more rigorous check of the correctness of our precompiled wheels (see PR #320).
Footnotes
I know that some packages do ship their test-suites as part of the wheel, but that currently makes absolutely no sense for us unless we provide users with an easy way to get the datafiles. We can always revisit this choice in the future after we merge PRs Auto File Management Part 1: Introducing a Datafile Management Tool #235 & Auto File Management Part 2: Allow Grackle to search for automatically managed data files #237 (or come up with an equivalent) ↩