jest-editor-support

The engine that allows editors to build on top of Jest.

Usage

This is only useful if you are interested in building an editor integration for Jest.

API

parse(   
  filePath: string,   
  serializedData?: string,   
  options?: JESParserOptions
);

JESParserOptions = 
{
    plugins?: JESParserPluginOptions;
    strictMode?: boolean;
};

JESParserPluginOptions = 
{
  decorators?: 'legacy' | {
    decoratorsBeforeExport?: boolean;
    allowCallParenthesized?: boolean;
  }
}

Parse is a static Jest parser which uses Babel 7 and supports js,jsx,mjs,ts,tsx files.

Supported ECMAScript proposals

• filePath = Path to the file you want to parse.
• serializedData = Serialized data, will be used instead of the filePath if available (optional).
• options:
  • strictMode = If this option is activated the parser throws an exception if the filetype is not detected, defaults to false.
  • pluginOptions = allow override for selected plugins options. Currently only support decorators.

examples:

parse('test.spec.ts');
parse('parameterDecorators.spec.ts', undefined, {plugins: {decorators: 'legacy'}})
parse('parameterDecorators.spec.ts', undefined, 
  {plugins: 
    {decorators: 
      {decoratorsBeforeExport: false}
    }
  })

Note

Since version 18.2.0 TypeScript is now a peer dependency. If you don't need to handle .tsx files then you can safely ignore the warning during installation.