Questions tagged [mock-fs]

Here is the full error output: Test suite failed to run TypeError: Cannot read properties of undefined (reading 'read') 2 | const { default: axios } = require('axios'); 3 | const fs = require('fs'); > 4 | const mockFs =…

I'm trying to use mock-fs to unit test code which uses ES6 dynamic imports. There seems to be an unexpected coupling between tests when I'm using dynamic imports, even though I call restore() after each test. It appears as though fs.readFile()…

I am facing issue in testing where My logger is in lambda layer thus non-existing for nodeJs import in lambda.js during mocha-chai testing. I tried mock-fs but getting errors Can not find module /opt/logger.js or maybe I am trying wrong way and not…

I have a function that reads the contents of a file from the file system asynchronously using Node's fs. While the function works, I cannot test it with Jest. I am using the mock-fs library to mock the file system to try to test the function. The…