Unable to mock module using Jest

ironSource / parquetjs

fully asynchronous, pure JavaScript implementation of the Parquet file format

MIT License

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Open jwarykowski opened 4 years ago

jwarykowski commented 4 years ago

When attempting to mock this module with Jest we get the following error raised:

jest.mock('parquetjs')

ReferenceError: Browser is not defined

The only way around this is to create a manual mock:

__mocks__/parquetjs.js

const parquetjs = {
  ParquetWriter: jest.fn(),
  ParquetSchema: jest.fn(),
  ...
}

module.exports = parquetjs

ryanau commented 3 years ago

@jwarykowski Were you able to figure out why?