Install Stryker using npm.
Make sure you have npm and nodejs installed. Open a terminal / command prompt and cd to the root of your project you want to mutation test.
$ cd my-project
The easiest way to get started with Stryker is by installing the stryker-cli globally. It is a small package which forwards commands to your local stryker instance.
$ npm install -g stryker-cli
Optionally, you could also install stryker directly yourself.
$ npm install --save-dev @stryker-mutator/core
If you choose to not install the stryker-cli, use
npx stryker (after installing
@stryker-mutator/core locally) instead of
stryker for the rest of the quickstart.
Run this command the configure stryker.
$ stryker init
If you're asked to install stryker, choose Yes. Follow the questionnaire.
Please let us know if your option is missing here by opening an issue.
After the init is done, inspect the
For more information on what these options mean, take a look at the Stryker readme
4 Let's kill some mutants
Run stryker to mutation test your project
$ stryker run
5 What's next?
Having troubles? Try enabling debug logging by adding
logLevel: 'debug' to your stryker.conf.js.
To also see output of your test runner, use
You can also have a look at the readme file of stryker for more information about the configuration.
Please report any issues you have or let us know via gitter.
Want to help the Stryker community? Awesome! You can help by writing plugins, document issues or simply writing docs. You can always drop us a line on gitter.