Jest expect matchers for subclasses
npm install jest-expect-subclass
Adds matchers to Jest expect() for whether one thing is a subclass of another or not.
* .toBeSubclassOf()
* .toBeDirectSubclassOf()
Require this package in your tests.
Or add to your Jest config file:
``js`
{
/ ... rest of config ... /
setupFilesAfterEnv: ['jest-expect-subclass']
}
This module follows semver. Breaking changes will only be made in major version updates.
All active NodeJS release lines are supported (v10+ at time of writing). After a release line of NodeJS reaches end of life according to Node's LTS schedule, support for that version of Node may be dropped at any time, and this will not be considered a breaking change. Dropping support for a Node version will be made in a minor version update (e.g. 1.2.0 to 1.3.0). If you are using a Node version which is approaching end of life, pin your dependency of this module to patch updates only using tilde (~) e.g. ~1.2.3 to avoid breakages.
Use npm test to run the tests. Use npm run cover` to check coverage.
See changelog.md
If you discover a bug, please raise an issue on Github. https://github.com/overlookmotel/jest-expect-subclass/issues
Pull requests are very welcome. Please:
* ensure all tests pass before submitting PR
* add tests for new features
* document new functionality/API additions in README
* do not add an entry to Changelog (Changelog is created when cutting releases)