Testcontainers, Vitest, pytest
If an integration test cannot create its schema but continues into entity tests, the delayed failures lose the original cause. A missing migration directory, zero SQL files, a read error, or one failed statement is a bo…
An example content service serves the same screens through two deliberate data boundaries. Docker SSR reads PostgreSQL, while a static host builds pages from the /api/export snapshot captured at delivery time. Forcing b…
Content initialization is one ordered pipeline: create tables, correct the schema, seed static data, and upsert notes and courses. Even idempotent steps can observe an intermediate state when an operator double-clicks o…
Building an image does not prove that users can use a healthy path. Bind the tested commit to the running image and run a real DB-reading smoke after readiness.
Implementation and completion are different decisions. Connect questions from product, design, engineering, users, and operations to a test or a record so another person can reproduce the conclusion.
In an admin app with dozens of pages and hundreds of API routes, the most common E2E mistake is forgetting to add a new route to the spec. Instead of hand-maintaining spec files, derive a route manifest from the filesys…
GitHub Actions puts CI/CD inside the GitHub repository. It went into beta in 2018 and moved to GA in 2019.
Separate unit, integration, browser, and production smoke checks, then assign Vitest, pytest, Cypress, and Playwright without duplicating responsibilities.
The word "observability" tends to suggest rolling out a full stack, but introducing a full stack from a small system makes operational cost outpace value pretty quickly.
Vitest is a testing framework that grew out of the Vite ecosystem. It keeps a similar grain to Jest while handling ESM, TypeScript, and watch mode more lightly.
Testing code that depends on external systems like a DB, Redis, or Kafka usually splits into two paths. We either mock the dependency, or we boot a real instance and verify against it. Testcontainers is the library that…