Why do small incremental code changes in software have to do with testing?

It is method where the product is designed, implemented and tested incrementally until the product is finished.

Explanation:

Small incremental codes are used to find the errors or bugs in the program coding or in the development of software. The whole process of incremental codes in software testing is categorized in smaller chunks, and the process is executed in steps of design, requirement, and implementation. If an error occurs in each step of the testing phase, it will be detected. This process is economical and easy to use due to smaller chunks.