Automated tests protect a web project from regressions and make refactoring safer. The goal is not to test everything equally, but to test the most valuable behavior first.
A practical test strategy
- Unit-test business rules and data transformations.
- Use integration tests for databases and external services.
- Cover critical user journeys with end-to-end tests.
- Run the suite automatically in CI before deployment.
Keep tests deterministic, readable, and fast enough for everyday development.