Automation testing is a process in which an application executes the whole life cycle of the software in very little time, furnishing the testing software with a great deal of adequacy and effectiveness. In this programmed system, a tester writes a script and takes the assistance of suitable software to test the software. The fundamental goal behind automation testing is to support test productivity and enhance the value of the software.
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Automation testing helps in revealing those pieces of code which are not getting tested. A low automation code coverage affects the product quality, putting unnecessary pressure on testers to physically check it.