wat is mutation testing

Answer Posted / lokesh chauhan

Mutation testing also called mutation analysis is a method
of software testing, which involves modifying program's
source code in small ways. These, so-called mutations, are
based on well-defined mutation operators that either mimic
typical user mistakes (such as using the wrong operator or
variable name) or force the creation of valuable tests. The
purpose is to help the tester develop effective tests or
locate weaknesses in the test data used for the program or
in sections of the code that are seldom or never accessed
during execution.

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