because they are already in test/tests/ and
test/tests/test_* just seems silly to me

and combine with YAML checks

and friends

If a method only assigns ivars, then there is no
reason to process method twice. It will be cached,
but we want to test case where we need the ivar
values from a cached method that does not depend
on environment.

needs better name?

which is a good thing

Don't warn on safe values as args, second argument,
or model associations

using Draper gem

instead of "UnknownModel"

for test coverage

for test coverage

because there's an error when string interpolation has more than one
expression inside.

This tests when you have a partial that is rendered from
more than one controller action, which in the past would cause
rendered partials to be overwritten, possibly hiding warnings