Minitest

WebMockRuby

A Ruby library for stubbing and setting expectations on HTTP requests in tests.

shoulda-matchersRuby

RSpec and Minitest-compatible one-liner matchers for testing common Rails functionality like validations and associations.

RougeRuby

A pure Ruby syntax highlighter compatible with Pygments, supporting over 200 languages and outputting HTML or ANSI 256-color text.

mutantRuby

Mutation testing for Ruby that systematically modifies code to verify test effectiveness, especially important with AI-generated code.

test-profRuby

A Ruby toolbox for profiling and optimizing test suite performance with plug-and-play integrations and analyzers.