My Testing Thoughts

What is Mutation Testing? Mutation Testing is an approach that evaluates the quality of existing software tests. The whole idea is to modify a small part in your code (mutated version code- faulty seed) covered by tests and check whether the existing test suite will find the errors and reject this mutated code. If it doesn’t, it means the tests are less strong and does not match your code’s complexity and thus leave many aspects untested. The changes introduced or injected in the program code are generally referred to as ‘ mutants ’. Let's take an example now- say we have a function where we take the monthly Total income of a family as an input and then decide whether they are eligible for a subsidy of Gas or not. If it is equal or less than ₹10,000, give them a subsidy.  It will be something like: -  Input the monthly Total income -  If monthly Total income=<₹10,000 -  Gas Subsidy= Yes -  End if (Gas Subsidy= No) For testing, our test data inputs will be like 9999