The Contractor Acceptance‑Test Cookbook: 20 Ready‑to‑Paste Playwright & Postman Tests

Treat each test as a single acceptance criterion. In the brief, list the test name, the expected inputs, the exact environment (staging URL, test accounts, and API keys), and whether a failure blocks release. If you give contractors runnable tests instead of vague feature paragraphs, their estimates will reflect implementation complexity rather than interpretation risk.

Include a note about test ownership: who provides test credentials; whether tests run against seeded test data; and which tests the contractor must add to CI. That last bit — requiring tests to be runnable as a CI smoke job — makes ‘definition of done’ verifiable by your engineering team or a reviewer.

Below are 20 concise acceptance tests. Each item includes the intended runner (Playwright for UI, Postman for API), what it asserts, and a one‑line 'why this matters' so you can paste it straight into a brief. Use the Playwright examples for UI flows and Postman collection requests for API/billing/security checks.

These are intentionally minimal so they’re easy to adopt as smoke checks. After you paste them, add your environment values (URLs, API keys, test user credentials) and commit the files as part of the contractor deliverable.

Playwright snippet pattern: each test should be self-contained: set up state, perform an action, assert visible DOM and HTTP status if relevant. Use authentication by seeding storage state or using backend login tokens to avoid brittle UI logins. Playwright docs show auth patterns and running tests selectively for quick smoke runs.

Postman pattern: write one request per acceptance criterion, include a small Test script asserting status codes and JSON shape, and keep environment variables for tokens and URLs. Use collection-level pre-request scripts to set auth and shared test-data teardown. Postman docs include test examples and guidance for running collections with Newman or the Postman CLI in CI.

Goal: fast, deterministic feedback before merge. Create a pipeline job named smoke or presubmit that checks out the branch, installs minimal deps, runs the smoke subset (Playwright headless, Postman collection via Newman/Postman CLI), and exits non‑zero on failures. Keep smoke jobs fast by stubbing slow external integrations or using sandbox/test-mode keys.

Don’t try to run the entire suite pre-merge. Instead: (1) require the smoke job to pass for PR approval, (2) run the larger suite on main or as a post-merge gate, and (3) use flakiness annotations so flaky tests don’t permanently block shipping. Document which tests run where in the brief so contractors implement them accordingly.