Mocha with Node: Only show logging for tests that fail

Question

I'm using node with mocha and winston. Is there a way to set it up so it only shows logs for failing tests?

@Brand's answer is 100% correct. I prefer to be more explicit and use `mocha --reporter min` instead of `mocha -R min`. Just another way to do the same thing. — HussienK, Feb 13 '17 at 16:45

score 16 · Accepted Answer · edited Feb 13 '17 at 17:00

16

If you run with the min reporter you will only get full output on failed tests: mocha -R min or, if you prefer the verbose option, mocha --reporter min.

edited Feb 13 '17 at 17:00

Louis

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answered May 17 '12 at 12:55

Brand

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This does not suppress your application logs. – Ilia Choly Jan 26 '23 at 15:31

score 0 · Answer 2 · answered Jan 30 '22 at 16:01

As of writing (in 2022), there's now an npm package that does exactly this:

https://www.npmjs.com/package/mocha-suppress-logs

I like it because I like the output from the default mocha reporter. It keeps all that, but hides console output for succeeding tests.

score -1 · Answer 3 · answered Mar 16 '21 at 20:37

-1

Possible to use

if (!expect(next.called).to.be.true) {
        console.log("... further information")
}

answered Mar 16 '21 at 20:37

DaveX

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Mocha with Node: Only show logging for tests that fail

3 Answers3