Testing
Stress testing a traditional web application is well-understood: simulate concurrent users, ramp up load, find the breaking point. LLM-powered applications fail differently, and traditional stress testing approaches miss the important failure modes. This guide covers stress testing strategies specific to applications that call LLM APIs — OpenAI, Gemini, Anthropic,
Testing
Launching a SaaS without stress testing is a gamble. You've built something, your first users are coming, and you don't know if the infrastructure holds. Most of the time it works. Sometimes it doesn't — the launch gets featured somewhere, traffic spikes, and the application
Testing
Static pages are easy to test. The real challenge is dynamic content — elements that appear after AJAX calls, modals that animate in, infinite scroll that loads more rows, dropdowns that require hover states. Geb has solid tools for handling all of these, but you need to understand how they work
Testing
Geb is a Groovy-based browser automation library built on top of WebDriver. It combines the power of Selenium's WebDriver with Groovy's expressive syntax and the jQuery-style content DSL. When paired with Spock, the result is browser tests that read almost like plain English. This
Storybook
Storybook 8.3 introduced a significant integration with Vitest: the ability to run your story play functions as Vitest test cases, using the full Vitest ecosystem for test running, watch mode, filtering, and CI reporting. This changes the calculus for teams choosing between test-runner, Vitest, and Playwright component testing.
Compliance Testing
GDPR is not a checkbox. It is a set of behavioral requirements that your software must continuously satisfy — and "continuously" is the key word. A manual audit once a year does not protect you. A compliance review before a major release does not protect you. What protects you
Testing
The General Data Protection Regulation (GDPR) has been in force since May 2018, and enforcement has accelerated sharply. In 2023, GDPR fines totaled over €2.1 billion. Meta received a record €1.2 billion fine in a single case. These aren't abstract legal risks — they result from identifiable,
Storybook
Every team that uses Storybook eventually faces the same question: we have hundreds of stories documenting our components, but how do we make sure none of them are broken without manually clicking through all of them? The @storybook/test-runner answers that question. It turns every story into an automated
Testing
Storybook has always occupied an awkward position in the testing stack. It documents components beautifully and lets developers iterate on UI in isolation, but for a long time the bridge between "story exists" and "story is tested" was left to the developer to build. @storybook/addon-
Gauge
Gauge supports parallel execution natively via the --parallel flag. Tests are distributed across streams (worker processes), each running in isolation. You control the degree of parallelism, how specs are distributed, and what environment each stream gets. With proper setup, a 30-minute sequential test suite can finish in under 10
Storybook
Components that fetch data are among the hardest to develop in isolation. Without a running backend, you cannot see loading states, you cannot force error conditions, and you cannot test how the UI behaves when an API returns unexpected data. Mock Service Worker (MSW) solves this by intercepting network requests
Gauge
gauge-js is the official JavaScript plugin for the Gauge test framework. It lets you write step implementations in Node.js, supports async/await natively, and works well with Playwright, Puppeteer, or any other Node.js testing library. If your team is JavaScript-first and you want Gauge's