Tests in Next Release #73 ("jack-o'-lantern")

[kawa-kokosowa]

Here's a (probably expanding) list of test requirements for 0.14.0 "jack-o'-lantern" to be released:

• [ ] Test Collision
• [x] Correct test errors present in nextrelease right now
• [ ] don't use parens with assert (fix such instances)
• [ ] 100% coverage (or close)