json reporter output path not working

[ramzes13]

Expected behavior

To be generated, the file test-report.json

Actual behavior

All output is redirected to console

Installed packages:

    "mocha": "^10.0.0",
    "mocha-multi-reporters": "^1.5.1",

Steps to reproduce the behavior

npm script:

    "mocha": "TZ=UTC NODE_ENV=mocha ts-mocha \"test/**/*.test.ts\" --exit --recursive --timeout 30000 --reporter mocha-multi-reporters --reporter-options configFile=mocha-multi-reporter-config.json",

mocha-multi-reporter-config.json content:

{
  "reporterEnabled": "spec, json",
  "jsonReporterOptions": {
    "output": "test-report.json"
  }
}

[Danielku15]

This library is not compatible with the latest Mocha anymore. mocha-multi-reporters uses reportOptions (plural) while Mocha internally uses nowadays reportOption (singular). Any custom options don't make it through to Mocha.

I simply made my own reporter like this:

ci-reporter.js

const BaseReporter = require('mocha/lib/reporters/base');
const SpecReporter = require('mocha/lib/reporters/spec');
const JsonReporter = require('mocha/lib/reporters/json');

module.exports = class MultiReporter extends BaseReporter {
  reporters;

  constructor(runner, options) {
    super(runner, options);
    this.reporters = [
      new SpecReporter(runner, {
        reporterOption: options.reporterOption.specReporterOption,
      }),
      new JsonReporter(runner, {
        reporterOption: options.reporterOption.jsonReporterOption,
      }),
    ];
  }
};

.mocharc.js

const path = require('path');
module.exports = {
  reporter: path.join(__dirname, 'ci-reporter.js'),
  reporterOption: {
    jsonReporterOption: {
      output: path.join(__dirname, `test-results.json`),
    }
  }
}