Understanding testability
Testability can be defined as follows:
"The degree of ease with which a software system exposes its faults through execution-based testing".
A software system with a high level of testability provides a high degree of exposure of its faults through testing, thereby giving the developers higher accessibility to the system's issues and allowing them to find and fix bugs faster. A less testable system, on the other hand, would make it difficult for developers to figure out issues with it and can often lead to unexpected failures in production.
Testability is, hence, an important aspect in ensuring the quality, stability, and predictability of the software system in production.
Software testability and related attributes
A software system is testable if it gives up (exposes) its faults easily to the tester. Not only that, the system should behave in a predictable way for the tester to develop useful tests. An unpredictable system would give varying output...
