Testing
Role-Based Access Control (RBAC) is the authorization layer that ensures users can only access what they're permitted to. Manual testing of RBAC is insufficient — authorization bugs are subtle, easy to miss, and have severe consequences. Automated RBAC tests verify every permission boundary systematically. This guide covers implementing automated
Testing
Privilege escalation occurs when a user gains access or capabilities beyond what they were granted. Vertical escalation is gaining a higher role (user → admin); horizontal escalation is accessing another user's resources at the same privilege level. Both are critical security vulnerabilities that automated testing must catch. This guide
Testing
Module Federation was originally a Webpack 5 feature, but @originjs/vite-plugin-federation brought it to the Vite ecosystem. Testing Vite-based federated modules requires a different setup than Webpack — Vitest is the natural testing tool, and the module resolution strategy for federated imports needs specific configuration. This guide covers setting up Vitest
Testing
Micro-frontends enable independent deployment — teams can release new versions of their micro-frontend without coordinating with other teams. But this independence creates CI/CD testing challenges: how do you test a remote in isolation, how do you verify the composition still works after a remote deploys, and how do you roll
Testing
Micro-frontends communicate through defined interfaces: federated module exports, custom events, shared state, and props passed from shell to remote. When one team changes their interface without notifying consumers, the entire application breaks — and in production. Contract testing formalizes these interfaces so both sides can verify compatibility independently, without deploying the
Testing
Vector databases power the retrieval layer of AI applications — semantic search, RAG pipelines, recommendation systems, and knowledge bases. But testing them is different from testing SQL databases. You can't assert on exact row matches; you're asserting on approximate similarity, ranking order, and threshold behavior. This guide
Testing
Tauri builds desktop applications with a Rust backend and a web frontend (React, Vue, Svelte, or plain HTML/JS). Testing Tauri apps requires a split strategy: Rust unit tests for backend commands, JavaScript/TypeScript tests for the frontend, and integration tests that validate the communication between them. This guide covers
Testing
The Vue 3 Composition API changed how we write Vue components — and it changed how we test them. Composables can be tested in isolation, reactive state is explicit and predictable, and <script setup> components are simpler to reason about. But the patterns for testing them effectively aren'
Testing
Stripe webhooks are the backbone of payment processing — they notify your application when payments succeed, subscriptions change, and invoices are due. But webhook endpoints are notoriously hard to test: they need HTTPS, a signature verification step, and they handle async events that don't return values. This guide covers
Testing
Single-SPA is a framework for orchestrating multiple micro-frontend applications on a single page. Each micro-frontend registers as an application with its own lifecycle hooks — bootstrap, mount, and unmount — and Single-SPA activates them based on URL patterns. Testing Single-SPA applications requires testing at three levels: individual micro-frontend lifecycle hooks, the root-config
Testing
Pinia is the official state management library for Vue 3, and testing Pinia stores is straightforward once you understand the setup requirements. Unlike Vuex, Pinia stores are regular composables — you can import and call them directly in tests without complex mocking infrastructure. This guide covers testing Pinia stores in isolation,
Testing
Pinecone is a managed vector database used in production RAG systems, semantic search, and recommendation engines. Testing Pinecone integrations differs from testing local databases — you're working with a remote, managed service, which introduces network latency, eventual consistency, and cost considerations. This guide covers integration testing strategies for Pinecone: