Cannot destructure property resultsDir of opts.reporterOptions

Describe the bug Not able to run mocha with the reporter, even for very basic tests.

To Reproduce Steps to reproduce the behavior:

Create two files with the following contents:

test/test.spec.js:

const expect = require('chai').expect;

describe('Simple tests', () => {
    it('should pass', () => {
        expect(true).to.equal(true);
    });

    it('should fail', () => {
        expect(true).to.equal(false);
    });
});

package.json:

{
  "name": "allure-js-example",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "mocha test/**.spec.js --reporter allure-mocha"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "allure-mocha": "^2.0.0-beta.15",
    "chai": "^4.3.6",
    "mocha": "^9.2.2"
  }
}

To replicate, first run npm install and then run npm test. You’ll see the following error:

> allure-js-example@1.0.0 test /Users/dev/allure-js-example
> mocha test/**.spec.js --reporter allure-mocha


TypeError: Cannot destructure property 'resultsDir' of 'opts.reporterOptions' as it is undefined.
    at new MochaAllureReporter (/Users/dev/allure-js-example/node_modules/allure-mocha/dist/MochaAllureReporter.js:31:17)
    at Mocha.run (/Users/dev/allure-js-example/node_modules/mocha/lib/mocha.js:1027:18)
    at singleRun (/Users/dev/allure-js-example/node_modules/mocha/lib/cli/run-helpers.js:126:16)
    at async Object.exports.handler (/Users/dev/allure-js-example/node_modules/mocha/lib/cli/run.js:374:5)
npm ERR! Test failed.  See above for more details.

Expected behavior

I have not included any allure functionality in the tests yet. I’m simply trying to run the tests, but with --reporter allure-mocha it is as if some option is required somewhere that isn’t being set. I looked in mocha-allure2-example and found a reporterConfig.json file, and I can run those TypeScript tests, but it’s not clear to me how to get it working with a simple Node.js JavaScript project. Here is the file from the example:

 cat reporterConfig.json 
{
  "reporterEnabled": "allure-mocha, list",
  "allureMochaReporterOptions": {
    "resultsDir": "./allure-results"
  }
}

But even if I include it, I still get the same error. What am I missing?

Desktop (please complete the following information):

• OS: Mac M1
• Browser: N/A
• Version: Node.js v14.17.5 and v16.10.0

Additional context

I opened up a ticket https://github.com/allure-framework/allure-docs/issues/158 regarding a request for more documentation on allure-mocha. The documentation on https://docs.qameta.io/allure/#_mocha is still pointing to the deprecated mocha-allure-reporter package last updated in 2018.

[jamesmortensen]

I can confirm now that the workaround works. The only difference is that I already had a .mocharc.js file, so I added the mocharc.json to the exports in the JS file, like so:

.mocharc.js:

/*
Other setup I was doing is here...
*/
module.exports = {
  "spec": "./test/**/*.spec.js",
  "reporter": "mocha-multi-reporters",
  "reporter-option": "configFile=reporterConfig.json"
}

and then the code to run the test is like this:

$ npx mocha --config .mocharc.js tests/*.spec.mjs

I also had to make sure the reporterConfig.json was still in the root, as mentioned in previous comments:

cat reporterConfig.json 
{
  "reporterEnabled": "allure-mocha, list",
  "allureMochaReporterOptions": {
    "resultsDir": "./allure-results"
  }
}

Thank you again!

[sskorol]

I believe it’s not yet published. But you can try the above suggestion.