thoughtbot/shoulda-matchers

Health v2 · maintenance only

Adoption not part of the score

3582 stars · 917 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A Ruby gem providing RSpec- and Minitest-compatible one-liner matchers for testing common Rails functionality like validations, associations, and controller behavior. It offers 30+ pre-built matchers for ActiveModel, ActiveRecord, ActionController, and routing.

Use cases

• test rails model validations with one-liners
• test activerecord associations in rspec
• write shorter rails unit tests
• test uniqueness validation scoped to a column
• test controller and routing behavior in rails
• add shoulda matchers to minitest suite

When to choose

• you maintain a Rails app with RSpec or Minitest tests
• you want concise, readable tests for validations, associations, and controllers
• you want to reduce boilerplate in your test suite

When to avoid

• you don't use Rails or ActiveModel/ActiveRecord
• you prefer writing explicit, hand-rolled test assertions
• you use a test framework other than RSpec or Minitest

Facets

library · maturity stable

testing e2e-testing testing web-development developer-tools ruby rspec minitest one-liner-tests active-record active-model action-controller rails

Member repositories

For agents

markdown · JSON · MCP: product_card(name="thoughtbot/shoulda-matchers")