Replacing dependency with td.replace(path, replacement) doesn't work

[chrisregner]

Here, I've used td.replace('./virtualClassnames', virtualCns) to completely replace the object that virtualClassnames exports:

// convertVirtualClassnames.spec.js
describe('convertVirtualClassnames()', function () {
    let cvc
    const virtualCns =  {
        virtualCnA: 'cnA cnB',
        virtualCnB: 'virtualCnA classC',
    }

    beforeEach('replace virtualClassnames dependency', function () {
        td.replace('./virtualClassnames', virtualCns)
        cvc = require('Services/cn/convertVirtualClassnames').default
    })

    it.only('converts any virtual class names that are found into actual class names', function () {
        expect(cvc('virtualCnA')).to.equal(virtualCns.virtualCnA)
    })
})

Here's the function being tested, I've logged the supposedly replaced virtualClassnames but it doesn't output as expected

// convertVirtualClassnames.js
import virtualClassnames from './virtualClassnames'

function convertVirtualClassnames(classNames?:string): string {
    // outputs { test: 'test' },
    // expected { virtualCnA: 'cnA cnB', virtualCnB: 'virtualCnA classC' }
    console.log(virtualClassnames)

    // process and return something here..
}

export default convertVirtualClassnames

The actual virtualClassnames:

// virtualClassnames.js
const virtualClassnames = { test: 'test' }

export default virtualClassnames

[chrisregner]

Furthermore, the following:

td.replace('./someFunc')

outputs this:

Error: Cannot find module './someFunc' from 'C:\myProjRootDir'

which is surprising because both someFunc and the file where I'm calling td.replace from is in a sub-directory of myProjRootDir.

So I tried to pass td.replace a path that allows it to resolve from root directory, and it outputted this:

SyntaxError: Unexpected token export

Is it because I'm using Webpack? I think why td.replace failed to import at first because it isn't aware of the import resolvers I've passed to Webpack. However, I don't know why it gave a syntax error after the import was resolved. I must have overlooked something.

[searls]

This isn't enough for me to go on. Please post a minimal example project we can work from to reproduce.

[chrisregner]

Okay will do. I'll post it here as soon as it's ready.

[chrisregner]

Sorry, I've tried to do the same thing on a different project and it worked. There must've been something wrong in my previous development environment setup. I'm closing this now.