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A mutation testing framework for PHP. More information:

  • Analyse code using the configuration file (or create one if it does not exist):


  • Use a specific number of threads:

infection --threads {{number_of_threads}}

  • Specify a minimum Mutation Score Indicator (MSI):

infection --min-msi {{percentage}}

  • Specify a minimum covered code MSI:

infection --min-covered-msi {{percentage}}

  • Use a specific test framework (defaults to phpunit):

infection --test-framework {{phpunit|phpspec}}

  • Only mutate lines of code that are covered by tests:

infection --only-covered

  • Display the mutation code that has been applied:

infection --show-mutations

  • Specify the log verbosity:

infection --log-verbosity {{default|all|none}}