TypeError: Cannot read properties of undefined (reading 'filename')

[Rinse12]

Node (ESM) fails on importing oclif/test due to this line

test/src/index.ts

Line 9 in adb0c93

loadConfig.root = module.parent!.filename

module.parent is undefined in ESM.

[Rinse12]

I replaced module.parent.filename with require.main.filename and it seems to work

I created https://github.com/Rinse12/oclif-test as a temporary until the fix is merged.

[phil-lgr]

Edit: with require.main.filename, I get the error:

TypeError: Cannot read properties of null (reading 'filename')

[phil-lgr]

@mdonnalley Do you have any idea in this case? We can submit a fix if we know how to approach this

[mrloop]

Looking at sindresorhus/meow#157 one suggested fix is passing the filename from the calling code. Maybe the API for test could be updated so for example in your test

test
.stderr({ print: true })
.command(['deploy', name])

becomes

test({ filename })
.stderr({print: true })
.command(['deploy', name])'

and if no filename provided would fall back to current behaviour?

[kaushals-mecha]

Another ugly workaround is below
Just use this in single file, other files will not require import changes

import { createRequire } from 'module';
import { expect as expectType, test as testType } from '@oclif/test';
const { expect, test } = createRequire(import.meta.url)('@oclif/test') as {
  expect: typeof expectType;
  test: typeof testType;
};

Reference Link

[mdonnalley]

I believe this was fixed in 2.4.0 - please reopen if you think there's still an issue here.