Testing
posts (10)
- Testing Through Layers: From Code to Infrastructure9/9
Infrastructure Tests and Security Tests: Configuration Before Production
An infrastructure test checks environment and configuration, while a security test guards risks that are often invisible in application code.
- Testing Through Layers: From Code to Infrastructure8/9
Performance Tests and Load Tests: Behavior Under Traffic
A performance test measures system behavior over time, a load test checks expected traffic, and a stress test looks for the breaking point.
- Testing Through Layers: From Code to Infrastructure7/9
Migration Tests and Data Tests: Safe State Changes
A migration test checks schema and data changes, while a data test protects state compatibility. This layer decides whether a release can be rolled back safely.
- Testing Through Layers: From Code to Infrastructure6/9
Regression Tests and Smoke Tests: The Gate Before Release
A regression test closes a bug that already passed once, while a smoke test checks whether a version is even worth testing further.
- Testing Through Layers: From Code to Infrastructure5/9
E2E Tests and Visual Regression Tests: The Full User Path
An E2E test walks through the system the way a user does, while a visual regression test protects appearance. They are powerful but expensive, so they should…
- Testing Through Layers: From Code to Infrastructure4/9
Contract Tests and API Tests: The Public System Agreement
A contract test protects the agreement between systems, while an API test checks the behavior of a public interface. Both matter where a change stops being…
- Testing Through Layers: From Code to Infrastructure3/9
Integration Tests: The Real System Boundary
An integration test checks whether code works with a real dependency or a real boundary. It tests the place a unit test cannot see by definition.
- Testing Through Layers: From Code to Infrastructure2/9
Component Tests and Snapshot Tests: A Small Application Fragment
A component test checks a small part of the application as behavior, while a snapshot test records its output. Both sit close to the code, but they answer…
- Testing Through Layers: From Code to Infrastructure1/9
Unit Tests: Fast Diagnosis Near the Code
A unit test checks the smallest useful unit of behavior without starting the whole system. Its value is speed and precise diagnosis.
- series · 9 parts
Testing Through Layers: From Code to Infrastructure
This series organizes test types by the place where they catch risk cheapest: from a small code decision to the production environment.