Write Tests

Apply the execution contract before this procedure.

Use this skill when the task is to write, review, or clean up RSpec tests.

Quick Reference

Aspect	Rule
Spec types	Model: domain logic / pure domain → start here; Request: HTTP endpoints; Job: background processing; Service/PORO: clean Ruby; System: E2E cross-layer journey (sparingly)
Assertions	Test behavior, not implementation
Factories	Minimal attributes; traits for options; prefer `build`/`build_stubbed` over `create`
Mocking	Stub external boundaries at class level (e.g. `allow(Client).to receive`); no Active Record mocking
Service specs	Required: `describe '.call'` and `subject(:result)` (see assets/output_checklist.md)
`let` vs `let!`	Default to `let`; use `let!` only when object must exist before action
Example names	Present tense; no `should`; no `and` (see assets/output_checklist.md)