jest-angular-import-meta

jest-angular-import-meta is a package designed to solve the issue of SyntaxError: Cannot use 'import.meta' outside a module that occurs when using Worker with Angular 12+ and Jest. This package replaces the import.meta.url token with __dirname in order to make the tests pass instead of fail.

Installation

You can install jest-angular-import-meta using npm:

npm install @hudsontavares/jest-angular-import-meta

or yarn:

yarn add @hudsontavares/jest-angular-import-meta

Usage

To use jest-angular-import-meta, you need to configure your TypeScript compiler to apply the transformation provided by the package. Here's an example of how you can do this with ts-jest:

// jest.config.js

module.exports = {
  // ...
  globals: {
    'ts-jest': {
      // ...
      astTransformers: {
        before: [
          '@hudsontavares/jest-angular-import-meta',
        ],
      },
    },
  },
};

After configuring ts-jest, the import.meta.url references in your code will be transformed to use __dirname instead, resolving the SyntaxError issue.

Contributing

Contributions to jest-angular-import-meta are welcome! If you find a bug or have a suggestion, please open an issue on the GitHub repository. Pull requests are also appreciated.

License

This package is licensed under the Apache-2.0.