TVerbaere / metamutator

a muta-mutation tool for Java

metamutator: a muta-mutation tool for Java

mvn test

In the context of this project, a metaprogram is a program with all mutations inserted at compile-time. However, the mutations are all desactivated by default, meaning that the metaprogram behaves as the original one. Mutations can be activated and desactivated one by one at runtime.

Mutation operators

Logical comparison (switch between ">", ">=", "!=", etc).

Usage

Let's assume your project is called foo and contains two folders src/main/java and src/test/java with a test class PgmTest.

1. Create the metaprogram

   java -jar spoon.jar -i src/main/java -p metamutator.BinaryOperatorMetaMutator -o spooned

2. Compile the metaprogram

   javac find spooned -name "*.java"

3. Run the test class (with the metaprogram in the classpath and not the original program)

   MutantSearchSpaceExplorator.runMetaProgramWith(PgmTest.class)

Credits

Based on awesome code by Carlos Fau and Alejandro Russel (https://github.com/totemcaf/code-fixer/)