I will write end-to-end and unit tests for your web app with Playwright or Jest

I will write end-to-end and unit tests for your web app using Playwright or Jest, so you can ship features without breaking the ones that already work.

Shipping fast is great until a "small" change quietly breaks checkout, login, or a form three pages deep. I build a real, maintainable test suite around your actual app so regressions get caught in CI instead of by your users. Whether you need fast unit tests with Jest, full browser-driven end-to-end flows with Playwright, or both working together, I write tests that are readable, stable, and genuinely useful, not just green checkmarks that prove nothing.

What you get

• End-to-end tests in Playwright covering your critical user journeys: sign-up, login, the core "happy path" of your product, and the failure cases that actually hurt (bad input, expired session, empty states, network errors).
• Unit tests in Jest (or Vitest if your stack prefers it) for your business logic, utilities, hooks, reducers, and pure functions, with meaningful assertions rather than trivial smoke checks.
• Tests written against your real codebase, not a generic template. I read your components and routes, follow your existing conventions, and match your file structure.
• Stable, non-flaky selectors: I use accessible roles, labels, and data-testid hooks (added where missing) instead of brittle CSS or XPath that breaks on the next redesign.
• Page Object / helper structure for E2E so tests stay readable and easy to extend as your app grows.
• Fixtures, mocks, and test data setup: API mocking with Playwright's network interception or MSW, Jest mocks for modules and timers, and seed/teardown helpers so tests run in isolation.
• A working test command wired into your package.json (e.g. npm run test, npm run test:e2e) so anyone on the team can run the suite with one line.
• A short written walkthrough of what's covered, how to run it locally, how to add new tests, and where the gaps are if any remain.
• CI integration on request: a GitHub Actions (or GitLab CI) workflow that runs the suite on every push or pull request, including Playwright's HTML report as an artifact.

Everything is delivered as clean commits or a pull request against your repository, with clear messages so you can review exactly what changed.

Plans

Tier	Scope	Includes
Basic	A focused starter suite	Unit tests for a defined set of functions/components or E2E tests for one critical flow (e.g. login), test command wired up, run instructions
Standard	A solid working suite	Several E2E user journeys plus unit tests for core logic, reusable fixtures/page objects, mocking setup, README walkthrough
Premium	Production-ready coverage	Broad E2E + unit coverage across the main app, CI workflow (GitHub Actions/GitLab) with reports, flake hardening, cross-browser runs, and a coverage summary

Scope (number of flows, files, and browsers) is agreed up front so each tier maps to your app, not a fixed quota that ignores your reality. If you're not sure which tier fits, send me your repo or a description and I'll recommend one honestly.

How it works

1. You share the details. Send me your repository (or a zip), the framework you use (React, Vue, Svelte, Next.js, Angular, plain JS, etc.), and a list of the flows or modules that matter most. A staging URL or local run instructions help a lot for E2E.
2. I scope and confirm. I review the codebase, propose exactly which flows and units I'll cover, flag anything blocking (no test ids, no seed data, auth that needs a test account), and confirm the plan with you before writing a line.
3. I set up the harness. I install and configure Playwright and/or Jest correctly for your stack, including TypeScript support, config files, and any environment setup.
4. I write the tests. Following your conventions, I build the suite incrementally so you can see progress, with descriptive test names that read like documentation.
5. I verify everything passes reliably. I run the suite multiple times to catch flakiness, fix race conditions, and make sure tests fail for the right reasons when something actually breaks.
6. I deliver and walk you through it. You get a PR or commits, a README, and clear instructions. Revisions are included so we can adjust selectors, add cases, or refine assertions.

Why choose this

I treat tests as code that has to be maintained, not a one-time deliverable you'll delete in a month. That means readable structure, no copy-paste duplication, no sleeping arbitrary seconds to "fix" timing, and selectors that survive UI changes. I've worked across modern JavaScript and TypeScript frameworks, so I adapt to your setup rather than forcing mine. I'm upfront about what's realistic: I'd rather deliver ten solid, trustworthy tests than fifty flaky ones that everyone learns to ignore. You get tests that fail loudly and correctly, which is the entire point of having them.

Who it's for / use cases

• Startups and indie founders who shipped fast, have zero tests, and now feel the fear every deploy.
• Teams adding CI that need a reliable suite to gate merges and stop regressions reaching production.
• Agencies and freelancers handing off a client project who want it covered and professional.
• Products mid-refactor or migration where E2E tests act as a safety net while internals change.
• Solo devs who want to learn good testing patterns by example, with a real suite to extend.

Typical jobs: locking down a checkout or payment flow, covering authentication and authorization, testing multi-step forms and wizards, validating dashboards and data tables, and protecting an API-driven UI against backend changes.

FAQ

Q: Should I use Playwright or Jest? They solve different problems and often pair up. Jest (unit/integration) tests your logic in isolation, fast. Playwright drives a real browser to test what users actually experience. For most apps I recommend Jest for logic plus Playwright for a handful of critical journeys. I'll advise based on your code.

Q: Do you support Vitest, Cypress, or Testing Library instead? Yes. I can write Jest or Vitest with React/Vue Testing Library, and I can work with Cypress if that's already your stack. Just tell me your preference; if you have none, I'll pick what fits best and explain why.

Q: My app has login/auth. Can you still test it? Absolutely. I handle authenticated flows using a test account, storage-state reuse, or programmatic login so tests stay fast and don't log in through the UI every single time. I'll need a test user or a way to create one.

Q: Will the tests be flaky? My goal is no. Flakiness comes from bad waits and brittle selectors, so I use auto-waiting, network-aware assertions, and accessible locators, then run the suite repeatedly to confirm stability before delivery.

Q: Do you set up CI so tests run automatically? Yes, included at the Premium tier and available as an add-on otherwise. I'll provide a GitHub Actions or GitLab CI workflow that runs the suite on every push or pull request and uploads the test report.

Q: What do you need from me to start? Repository access (or a zip), your framework and package manager, a way to run the app locally or a staging URL, and a short list of the flows and modules that matter most. The clearer that list, the better the coverage.

Q: Can you add tests to an existing suite? Definitely. I'll match your current setup, conventions, and helpers so new tests feel native to the codebase rather than bolted on.

Q: What if a test reveals an actual bug in my app? I'll document it clearly with reproduction steps. Fixing application bugs is outside the testing scope, but I'm happy to discuss handling them as additional work if you'd like.