Spring GDS 25th Anniversary
A logistics company that ships to 190 countries built something to ship to itself.
Cypress
What is Cypress?
Cypress is a JavaScript framework for end-to-end testing of web applications. It drives a real browser the way a user would, clicking buttons, filling forms, navigating pages, and asserting that the app behaves as expected. Tests are written in JavaScript or TypeScript and run inside the browser alongside the app, which is what gives Cypress its standout feature: you watch the test execute step by step and can inspect the exact state at any point when something fails.
That developer experience is why it caught on so quickly after its release. Older tools like Selenium drove the browser from the outside and were notorious for flaky, hard-to-debug tests. Cypress runs in the same loop as the app, which makes tests more reliable and far easier to diagnose. Its main rival today is Playwright, which supports more browsers and parallel execution out of the box, while Cypress keeps an edge in approachability and its time-travel debugging. A team shipping a checkout flow can write a Cypress test that loads the cart, enters payment details, completes the order, and confirms the receipt page, then run it on every commit to catch a break before users do.
Cypress covers more than end-to-end. It also handles component testing and API testing, which lets a team standardize on one tool across several layers of their test suite.
Cypress at Dallonses
We use Cypress to lock down the flows that matter most in a product, the ones where a silent break costs a client real money. Checkout, sign-up, the core path a user takes every day. Automated testing like this runs on every change, so a regression gets caught in CI instead of in production. That is the whole point of building it in early.
Test automation is part of how we structure projects, not a task bolted on at the end. We write tests that are readable and durable rather than a brittle pile that breaks on every refactor, and we pick Cypress or Playwright based on what the project actually needs. Solid QA testing automation is what lets a team ship fast without holding their breath each release.
Want a test suite that catches breaks before your users do? Let's build it.
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