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CONTRIBUTING.md

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Contributing

Hi, and thank you for considering a contribution to selery!

Topics for users

Logging an issue for any problem, question or suggestion is greatly appreciated.

Pull requests are likewise appreciated for typos and other straightforward bugfixes, as well as contributing tests. Fornon-trivial tasks, please create an issue (or participate on an existing thread) before taking on substantial work.

Topics for contributors

Setting up shop

Clone the repository and run npm install to fetch all the project dependencies.

Available npm scripts:

  • npm run test — run all tests;
  • npm run lint — lint the code with ESLint.

Creating a selector test-case

The test/cases folder contains a set of test-cases with which we can verify the output of the selery.tokenize(), selery.parse() and selery.serialize() methods. A test-case file in this location must end in .case.js in order to be evaluated.

A my.case.js file must export an array of test-cases. A test-case is a plain JavaScript object with these properties:

  • selector — the selector to verify;
  • description — a description of the test-case; if omitted, the selector will be used;
  • tokenize — the expected result of tokenize(selector); in case the method should throw, specify a regex to match the error;
  • parse — the expected result of parse(selector); in case the method should throw, specify a regex to match the error;
  • serialize — the expected result of serialize(parse(selector)); in case the method should throw, specify a regex to match the error; use true as a shorthand if you expect the result of the serialization to match the selector verbatim.

For a test-case to be useful, it must include at least a selector and one of tokenize, parse, or serialize.