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What is mutation testing
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Answer / ghouse
Mutation testing (or Mutation analysis or Program mutation)
is a method of software testing, which involves modifying
programs' source code or byte code in small ways. In short,
any tests which pass after code has been mutated are
considered defective.
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Answer / divya
Testing each and every line of a code is called mutation testing or it is also called as white box testing.
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Answer / suneel reddy
The answer which is given by Guest is called Defect
Injection Not Mutation Testing
Ok na Ashok Reddy
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Answer / tushar
A testing methodology in which two or more program mutations
are executed using the same test cases to evaluate the
ability of the test cases to detect differences in the
mutations.
or
A method whereby errors are purposely inserted into a
program under test to verify that the test can detect the
error. Also known as error seeding.
or
A method to determine test set thoroughness by measuring the
extent to which a test set can discriminate the program from
slight variants of the program. Non-intrusive Testing:
Testing that is transparent to the software under test; ie,
testing that does not change the timing or processing
characteristics of the software under test from its behavior
in a real environment. ...
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Answer / jaggu
More information is available at
http://en.wikipedia.org/wiki/Mutation_testing
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Answer / ashok
Mutation Testing means a complex change in a program used
to estimate Test Coverage of a Program.
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Answer / vnk, testing engineer
Mutation Testing is nothing but testing the program by
changing the Logic.
VNK
Testing Engineer.,
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Answer / sujit
Mutation testing is the process by which 2 or more program
mutations are executed with the same set of testcases, in
order to determine the ability of the test cases to find
differences in the mutations if any.
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Answer / shwetali
mutation testing is done to verify the changes in application with & without bug(bug is intentionally introduced)
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Automation Testing 
