minitest-silence

https://github.com/Shopify/minitest-silence

Minitest plugin to suppress output from tests. This plugin will buffer any output coming from a test going to STDOUT or STDERR, to make sure it doesn't interfere with the output of the test runner itself. By default, it will discard any output, unless the `--verbose` option is set It also supports failing a test if it is writing anything to STDOUT or STDERR by setting the `--fail-on-output` command line option.