JEST test failing: Undefined 'bind' property when importing Airtable

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1

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

TypeError: Cannot read property 'bind' of undefined

    > 1 | import DatabaseAPI from 'clouddb'
        | ^
     
      at Object.<anonymous> (node_modules/clouddb/src/request.ts:7:55)
      at Object.<anonymous> (node_modules/clouddb/src/collection.ts:3:1)
      at Object.<anonymous> (node_modules/clouddb/src/clouddb.ts:1:1)

Has anyone run into this before? I’m not sure why it’s saying ‘bind’ is undefined. Any ideas on how to fix this? I’ve tried updating my dependencies but that didn’t help. Maybe there’s an issue with how JEST is set up?

2

hey man, i had this problem too. turns out it was cuz of how jest handles es6 modules. try adding this to ur jest config:

"jest": {
  "transform": {
    "^.+\.js$": "babel-jest"
  }
}

this tells jest to use babel for transforming js files. might fix ur issue. lmk if it works!

3

I’ve encountered a similar issue before, and it’s often related to how Jest handles module mocking. The ‘bind’ error usually occurs when Jest is trying to mock a module that uses ES6 imports. To resolve this, you might need to configure Jest to properly transform your node_modules.

Try adding a transformIgnorePatterns option to your Jest config:

"transformIgnorePatterns": [
  "node_modules/(?!(clouddb)/)"
]

This tells Jest to transform the clouddb module, which might be necessary if it’s using ES6 syntax. Also, ensure you’re using the latest version of clouddb and Jest. If the problem persists, you could try manually mocking the clouddb module in your test setup file. Let me know if this helps or if you need more guidance.

4

I’ve dealt with this exact issue in one of my projects. The root cause was actually how Jest was interacting with Node’s module system. What worked for me was explicitly setting the testEnvironment to ‘node’ in my Jest config file. This ensures Jest uses Node’s require() instead of its own custom implementation.

Add this to your jest.config.js:

module.exports = {
  testEnvironment: 'node',
  // other config options...
};

If that doesn’t solve it, try clearing Jest’s cache with ‘jest --clearCache’ before running your tests again. Sometimes old transformations can linger and cause weird errors like this.

Another thing to check is your babel configuration. Make sure you’re not accidentally transpiling node_modules. That can sometimes lead to unexpected behavior with libraries like Airtable.

Hope this helps! Let us know if you get it working.