rails-testing

name	rails-testing
description	Rails testing stack: fixtures, factories, system tests, VCR, and test helpers. Use for integrated Rails test strategy.

Rails Testing

Combine unit, integration, and system tests for confidence without redundancy.

When to Use This Skill

• Choosing test type
• Testing jobs and mailers
• CI test parallelization

Defaults (This Plugin)

• Toolchain: mise — not rbenv, rvm, or asdf directly
• Ruby: 4.0.0+ unless the project pins otherwise
• Rails: 8+ conventions and generators when applicable
• Execution: Prefer mise exec --, bin/rails, bin/rspec, and bundle exec

Core Guidance

1. Pyramid: Many model/unit tests, fewer system tests.

2. Fixtures fast; FactoryBot when project already uses it.

3. System tests: Cuprite (headless Chrome) — keep examples focused.

4. Jobs/mailers: assert_enqueued_jobs, assert_emails.

5. VCR for external HTTP; stub at boundary.

6. CI: bin/rails db:test:prepare then parallel bin/rails test.

Quick Commands

mise exec -- bin/rails test
mise exec -- bin/rails test:system
mise exec -- bin/rails spec  # only if rspec installed

Anti-Patterns

• Testing third-party APIs without isolation
• Shared DB state between parallel workers

See Also

• ruby-rspec-testing
• ruby-minitest-testing