crytic

Crytic, pronounced /ˈkrɪtɪk/, is a mutation testing framework for the crystal programming language. Mutation testing is a type of software testing where specific statements in the code are changed to determine if test cases find this defect.

Crytic is in a very early state of development. It is not very clever, making it slow as well.

Blog posts

Introducing crytic - mutation testing in crystal-lang

Installation

Add this to your application's shard.yml:

development_dependencies:
  crytic:
    github: hanneskaeufler/crytic

After shards install, this will place the crytic executable into the bin/ folder inside your project.

Usage

Crytic will only mutate statements in one file, let's call that our subject. You must also provide a list of test files to be executed in order to find the defects.

./bin/crytic --subject src/blog/pages/archive.cr spec/blog_spec.cr

Development

TODO

Contributing

1. Fork it (https://github.com/hanneskaeufler/crytic/fork)
2. Create your feature branch (git checkout -b my-new-feature)
3. Run tests locally with crystal spec
4. Commit your changes (git commit -am 'Add some feature')
5. Push to the branch (git push origin my-new-feature)
6. Create a new Pull Request

Contributors

• hanneskaeufler Hannes Käufler - creator, maintainer