Content deleted Content added
m remove links to deleted portals |
Bluelinking 1 books for verifiability.) #IABot (v2.1alpha3 |
||
Line 8:
Therefore, testability is often thought of as an [[extrinsic]] property which results from interdependency of the software to be tested and the test goals, test methods used, and test resources (i.e., the test context). Even though testability can not be measured directly (such as software size) it should be considered an [[intrinsic]] property of a software artifact because it is highly correlated with other key software qualities such as encapsulation, coupling, cohesion, and redundancy.
The correlation of 'testability' to good design can be observed by seeing that code that has weak cohesion, tight coupling, redundancy and lack of encapsulation is difficult to test.<ref name="DesignPatternsExplained2ndEd">{{cite book | last1=Shalloway | first1=Alan | last2=Trott | first2=Jim | title=Design Patterns Explained, 2nd Ed | page=133 | year=2004 | isbn=978-0321247148 | url-access=registration | url=https://archive.org/details/isbn_9780321247148 }}</ref>
A lower degree of testability results in increased [[test effort]]. In extreme cases a lack of testability may hinder testing parts of the software or [[software requirements]] <u>at all</u>.
| |||