Posts

Fun & Sane Node.js TDD: Supercharge Postgres Tests with PGLite, Drizzle & Vitest Hey everyone! Let’s talk about testing in Node.js, specifically when databases get involved. Unit tests? Absolutely essential for checking your functions in isolation. But let’s be real – at some point, you need to know if your code actually plays nice with a real database, message queue, or whatever external service it relies on. Mocking everything can feel like building a house of cards – fragile, prone to hiding nasty bugs that only surface when things interact for real....

Integration Testing Node.js Postgres interaction Like You Mean It (with Vitest & Testcontainers) Look, unit tests are great for checking isolated logic. But eventually, you need to know if your code actually works with a real database, message queue, or whatever external service you depend on. Mocking everything is fragile and often hides bugs that only show up when things get real. Shared dev databases? A recipe for flaky tests and stepping on colleagues’ toes....