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Descartes: A Mutation Engine for PIT\n\n![build-on-push](https://github.com/STAMP-project/pitest-descartes/workflows/build-on-push/badge.svg)\n[![Maven Central](https://maven-badges.herokuapp.com/maven-central/eu.stamp-project/descartes/badge.svg?style=flat)](https://maven-badges.herokuapp.com/maven-central/eu.stamp-project/descartes)\n\n*I mutate therefore I am*\n\nThis document briefly explains what if Descartes and the minimum steps to use it or start using its repository. For a full documentation on how to use Descartes in other scenarios and how to configure it go to the [project's website](https://stamp-project.github.io/pitest-descartes/).\n\n## What is Descartes?\n\nDescartes evaluates the capability of your test suite to detect bugs using extreme mutation testing. It is able to find the worst tested methods in a project.\n\nDescartes is developed as a mutation engine plugin for [PIT](http://pitest.org) which implements extreme mutation operators as proposed in the paper [Will my tests tell me if I break this code?](http://dl.acm.org/citation.cfm?doid=2896941.2896944). It also works alongside other PIT extensions to provide more meaningful and actionable results improve results.\n\n## Quick start with Maven\n\nTo use Descartes in a Maven project, add the following plugin configuration to your `pom.xml`:\n\n```xml\n\u003cplugin\u003e\n  \u003cgroupId\u003eorg.pitest\u003c/groupId\u003e\n  \u003cartifactId\u003epitest-maven\u003c/artifactId\u003e\n  \u003cversion\u003e1.20.2\u003c/version\u003e\n  \u003cconfiguration\u003e\n    \u003cmutationEngine\u003edescartes\u003c/mutationEngine\u003e\n  \u003c/configuration\u003e\n  \u003cdependencies\u003e\n    \u003cdependency\u003e\n      \u003cgroupId\u003eeu.stamp-project\u003c/groupId\u003e\n      \u003cartifactId\u003edescartes\u003c/artifactId\u003e\n      \u003cversion\u003e1.3.34\u003c/version\u003e\n    \u003c/dependency\u003e\n  \u003c/dependencies\u003e\n\u003c/plugin\u003e\n```\n\nThen, execute the regular mutation coverage goal in the root folder of the project under test:\n\n```\ncd my-project-under-test\nmvn clean package org.pitest:pitest-maven:mutationCoverage\n```\n\nAll options from PIT can be used. For more details check [the PIT documentation](https://pitest.org/quickstart/maven/).\n\nIf you use a multi-module project take a look at [PitMP](https://github.com/STAMP-project/pitmp-maven-plugin).\n\n## Quick start with the repository\n\n\nIn a terminal, clone the repository:\n```\ngit clone https://github.com/STAMP-project/pitest-descartes.git\n```\nswitch to the cloned folder:\n```\ncd  pitest-descartes\n```\ninstall Descartes using the regular [Apache Maven](https://maven.apache.org) commands:\n```\nmvn install\n```\n\n## Referencing Descartes\n\nIf you use Descartes on your research projects you may cite is as:\n\n```bibtex\n@inproceedings{vera_descartes_2018,\n  author    = {Vera-Pérez, Oscar L. and Monperrus, Martin and Baudry, Benoit},\n  url       = {https://dl.acm.org/citation.cfm?doid=3238147.3240474},\n  booktitle = {Proceedings of the 2018 33rd ACM/IEEE International Conference on Automated Software Engineering (ASE ’18)},\n  date      = {2018},\n  month     = {09},\n  doi       = {10.1145/3238147.3240474},\n  pages     = {908--911},\n  title     = {Descartes: A {PITest} Engine to Detect Pseudo-Tested Methods},\n  urldate   = {2019-08-06},\n  doi       = {10.1145/3238147.3240474},\n  arxiv     = {https://arxiv.org/abs/1811.03045},\n  hal       = {https://hal.inria.fr/hal-01870976v1}\n}\n```\n\n## License\nDescartes is published under [LGPL-3.0](https://www.gnu.org/licenses/lgpl-3.0.html#license-text).\n\n## Contributing\n\nIssues, pull requests and other contributions are welcome. Check our [GitHub repository](https://github.com/STAMP-Project/pitest-descartes)\n\n## Funding\n\nUntil December 2019 Descartes was partially funded by the [STAMP research project (European Commission - H2020)](https://stamp.ow2.org/).\n\n![STAMP - European Commission - H2020](src/site/resources/images/logo.png)\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FSTAMP-project%2Fpitest-descartes","html_url":"https://awesome.ecosyste.ms/projects/github.com%2FSTAMP-project%2Fpitest-descartes","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2FSTAMP-project%2Fpitest-descartes/lists"}