Testability

Definitions

1. The degree to which a software component can be effectively and efficiently tested, determined by factors like dependency injection, separation of concerns, deterministic behavior, and the ability to observe internal state.

   In plain English: How easy or hard it is to write good tests for a piece of code, based on how that code is structured.

   Example: "Hardcoding the HTTP client killed testability — once we injected it, writing unit tests became trivial."

Related Terms

• Prototype
• Implementation
• Trade-off
• Hexagonal Architecture
• Domain-Driven Design
• Clean Architecture
• System Architecture
• Testing Pyramid
• Application Architecture
• Architecture Decision
• Architecture Pattern
• Architecture Review
• Code Architecture
• Eye Tracking