The minitest-snapshots gem has reached 1.0.0! It’s a simple minitest plugin for implementing Jest-style snapshot testing, so that you don’t have to manually maintain file fixtures for machine-generated data. Think of it as VCR, but for any value.

Use assert_matches_snapshot and mintest-snapshot takes care of the rest. To update existing snapshots, pass the -u option when running tests, just like Jest.

$ bin/rails test -u

minitest-snapshots is a small project and is open to contributions. Thanks for your interest!

https://github.com/mattbrictson/minitest-snapshots