JEST test fails with 'bind' undefined error when importing Airtable

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1 
I'm having trouble with my JEST tests. They keep failing when I try to import the Airtable library. Here's the error I'm getting:

TypeError: Cannot read property 'bind' of undefined

This happens on the very first line where I import Airtable:

import AirtableLib from 'airtable'

The full error trace points to some internal Airtable files:

at Object.<anonymous> (node_modules/airtable/src/fetch.ts:5:80)
at Object.<anonymous> (node_modules/airtable/src/base.ts:5:1)
at Object.<anonymous> (node_modules/airtable/src/airtable.ts:1:1)

Has anyone else run into this? I'm not sure what's causing it or how to fix it. Any help would be great!
2

I’ve encountered a similar issue with JEST and Airtable before. The problem often stems from JEST’s environment not properly mocking or simulating browser globals that Airtable relies on.

One solution that worked for me was to add a setup file for JEST. Create a file named ‘jest.setup.js’ in your project root and add this line:

global.fetch = require('node-fetch');

Then, update your Jest configuration in package.json or jest.config.js to include:

setupFiles: ['<rootDir>/jest.setup.js']

This approach ensures that the global fetch function is available, which Airtable needs. Also, make sure you’re using the latest versions of both JEST and Airtable.

If this doesn’t solve it, you might need to mock the Airtable module entirely in your tests. Let me know if you need help with that approach.

3

hey jack, i had that problem too. super annoying! try adding this to ur jest config:

transformIgnorePatterns: ['node_modules/(?!(airtable)/)']

it tells jest to transform airtable instead of ignoring it. fixed it for me. hope it helps!

4

I’ve dealt with this exact issue in one of my projects. The root cause is likely JEST’s test environment lacking certain global objects that Airtable expects to be present. Here’s what worked for me:

Instead of importing Airtable directly, try mocking it in your test file. You can do this by adding something like this at the top of your test file:

jest.mock(‘airtable’, () => ({
__esModule: true,
default: jest.fn(),
}));

This creates a mock Airtable module, which should prevent the ‘bind’ undefined error. You’ll need to set up any specific Airtable methods you’re using in your tests after this mock.

If you’re using Airtable extensively in your tests, you might want to consider creating a separate mock file for it. This approach has served me well in larger projects.