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.

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

RSpec matchers for database queries

Easily test email in RSpec, Cucumber, and MiniTest

Collection cardinality matchers, extracted from rspec-expectations

RSpec matchers for testing OpenPGP messages

Nokogiri based 'have_tag' and 'with_tag' matchers for rspec 3. Does not depend on assert_select matcher, provides useful error messages.

Collection of rspec matchers to test your graphQL api schema.

Rspec matcher for ActiveSupport::Notifications

This library provides RSpec matcher for testing JSON string.

RSpec matcher for testing ActionMailer

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

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