jscodeshift-ava-to-jest

A jscodeshift codemod that transforms test files from AVA to Jest.

Deprecation Warning

I no longer maintain this package. As a great, more feature complete alternative, I recommend https://github.com/skovhus/jest-codemods.

Install

Get jscodeshift-ava-to-jest from NPM

npm install --save-dev jscodeshift-ava-to-jest

Usage

TBD: Explain how this module can be used in an existing project.

Why?

It all started with a tweet, followed by a suggestion by Christoph Pojer.

Supported AVA Assertions

• .pass([message])
• .fail([message])
• .truthy(value, [message])
• .falsy(value, [message])
• .true(value, [message])
• .false(value, [message])
• .is(value, expected, [message])
• .not(value, expected, [message])
• .deepEqual(value, expected, [message])
• .notDeepEqual(value, expected, [message])
• .throws(function|promise, [error, [message]])
• .notThrows(function|promise, [message])
• .regex(contents, regex, [message])
• .notRegex(contents, regex, [message])
• .ifError(error, [message])

Contributing

Project structure

ava-tests: Contains tests written in AVA.

jest-tests: Contains generated Jest files.

src: Contains jscodeshift helper functions.

transform.js: The entry point for jscodeshift.

Run tests

npm test: Transforms tests from AVA to Jest. In more detail:

1. Runs ava on all files in ava-tests to make sure the AVA tests are valid.
2. Deletes all files in jest-tests.
3. Copies all files from ava-tests to jest-tests.
4. Runs jscodeshift on all files in jest-tests.
5. Runs jest on all files in jest-tests to make sure the Jest tests are valid.