nodejs / nodejs/node

--experimental-test-module-mocks is not working as expected

Aperta
#55,891 12 commenti 2 reazioni 0 assegnatari Vedi su GitHub

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test_runner
Lingua principale
JavaScript
Stelle
122k
Fork
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Merge medio
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PR unite (30g)
283

Descrizione

Version

v24.0.0-pre

Platform
Linux fedora 6.11.6-200.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Nov  1 16:09:34 UTC 2024 x86_64 GNU/Linux
Subsystem

No response

What steps will reproduce the bug?

This issue was observed inside the nodejs source code, when tying to create a benchmark
create a file benchmark/test_runner/mock-module.js

now copy this code

"use strict";

const { test } = require("node:test");

function main() {
  test(async (t) => {
    console.log("benchmark");

    try {
    // Create a mock module
    t.mock.module('axios', {
      namedExports: {
        get: (url) => url
      }
    });

    } catch (e) {
      console.error(e);
    }

    console.log("end");
  });
}

main()

now run this using ./node --experimental-test-module-mocks benchmark/test_runner/mock-module.js

You will get this output

benchmark
Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'axios' imported from /home/ankan/Documents/git/me/node/benchmark/test_runner/mock-module.js
    at Object.getPackageJSONURL (node:internal/modules/package_json_reader:267:9)
    at packageResolve (node:internal/modules/esm/resolve:768:81)
    at moduleResolve (node:internal/modules/esm/resolve:854:18)
    at defaultResolve (node:internal/modules/esm/resolve:984:11)
    at nextResolve (node:internal/modules/esm/hooks:748:28)
    at resolve (node:internal/test_runner/mock/loader:78:35)
    at nextResolve (node:internal/modules/esm/hooks:748:28)
    at Hooks.resolve (node:internal/modules/esm/hooks:240:30)
    at handleMessage (node:internal/modules/esm/worker:199:24)
    at Immediate.checkForMessages (node:internal/modules/esm/worker:141:28) {
  code: 'ERR_MODULE_NOT_FOUND'
}
end
✔ <anonymous> (42.524333ms)
(node:91728) ExperimentalWarning: Module mocking is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
ℹ tests 1
ℹ suites 0
ℹ pass 1
ℹ fail 0
ℹ cancelled 0
ℹ skipped 0
ℹ todo 0
ℹ duration_ms 48.749785

As you can we we are trying to create a mock 'axios' module but we receive the error Cannot find package 'axios', which is unexpected as we are not even importing the module. The error is occurring because of the line t.mock.module

How often does it reproduce? Is there a required condition?

dose not need any special condition

What is the expected behavior? Why is that the expected behavior?

should create a mock module called axios

What do you see instead?

their is an error, saying package 'axios' not found, which is very unexpected

Additional information

No response

Guida per i contributori

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Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
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  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Direzione di ricerca

Inizia da benchmark/test_runner/mock-module.js e dalla chiamata t.mock.module, quindi segui il mock loader in internal/test_runner/mock/loader.js e il relativo percorso di risoluzione dei moduli. Riproduci il comportamento con ./node --experimental-test-module-mocks benchmark/test_runner/mock-module.js; il lavoro è completato quando il mock può essere creato senza l’errore imprevisto di risoluzione di axios.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
javascript, node.js
Ambito
testing-qa
Tipo di issue
Bug
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Tranquilla
Chiarezza
Abbastanza chiara
Idoneità per principianti
58/100

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