What is mutation testing?? And when we use it??
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Mutation Testing
Performing Testing on the application after the development team has changed the source code intentionally is called as mutation testing.
After completion of unit testing activity in our project that means we have to write the test cases for unit testing and execute it then at that time developer changes the source code to verify all the test cases which can be used during unit testing is giving the pass result or fail one ..if all the same test cases giving the pass result then we don't execute all possibility of unit testing.so we have to write another cases for unit testing and perform testing on the basis of those test cases and repeat the process until some of the test cases provides false result in mutation testing.
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Answer / nagarjuna
Testing conducted on the application by giving inputs manually and observing outputs manually is called Manual Testing.
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