Difference between API Testing and Unit Testing
API Testing |
Unit Testing |
Access main functionality of the system employed by end-user and its more comprehensive as it is tested from user’s perspective. | Used to test each unit performs as expected or not. It is less comprehensive as it is tested in isolation. |
It is carried out by the QA team and testing is complex involving multiple systems and applications. | It is carried out by developers and comparatively less complex as the code is tested early before integration and system testing. |
The functionality has been tested from beginning to end including entire product and features making it more time consuming. | Functionalities are put to the test individually and is maintainable. |
Most of the time it is Black Box Testing. | This is White Box Testing. |
Entire API functions are put to the test. | UI testing is also a part of the process which helps in testing all the edge cases. |
All functional issues are thoroughly examined. | Only the most basic functions are put to the test |
Broader in scope | The scope is limited. |
After the build is finished, it is run. | Usually performed prior to check-in. |
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