Shoulda Matchers provides RSpec- and Minitest-compatible one-liners to test common Rails functionality that, if written by hand, would be much longer, more complex, and error-prone.

Easily test email in RSpec, Cucumber, and MiniTest

Extension for popular TDD and BDD frameworks like "Cucumber", "RSpec" and "Minitest", to make testing command line applications meaningful, easy and fun.

RSpec matchers for database queries

Nokogiri based 'have_tag' and 'with_tag' matchers for RSpec. Does not depend on assert_select matcher, provides useful error messages.

Collection cardinality matchers, extracted from rspec-expectations

This library provides RSpec matcher for testing JSON string.

Collection of rspec matchers to test your graphQL api schema.

RSpec matchers for JSON strings with the power of built-in matchers and composable matchers

Rspec matcher for ActiveSupport::Notifications

Writing logs is an easy way to store any kind of information for further analysis later on. It's commonly used to store analytics events and then make the logs a source for data engineering tasks. This matcher makes logging testing easier.

RSpec matcher to check that an expression changed its result in arbitrary seconds. Useful for expecting value which changes asynchronously.

RSpec matcher for testing ActionMailer

RSpec matchers for testing OpenPGP messages