How to display logs in jest unit test?

Question

In my package.json I have this jest test configuration:

 test: {
        default: `${crossEnv(
          'CI=false'
        )} react-scripts test --env=jsdom --verbose=false`,
        local: {
          default: 'react-scripts test --env=jsdom --coverage',
        },
        coverage: 'lerna exec npm start test.coverage',
        ci: `${crossEnv('CI=true')} react-scripts test --env=jsdom --coverage`,
  },

For some reason when I run a jest test and use console.log() the log is not displayed?

Possible duplicate of [Console.log statements output nothing at all in Jest](https://stackoverflow.com/questions/48695717/console-log-statements-output-nothing-at-all-in-jest) — jonrsharpe, Feb 11 '19 at 10:05

score 1 · Accepted Answer · edited Feb 11 '19 at 10:15

1

This is a known issue in Jest as far as I know. What I usually do to bypass this is just expect(valueToLog).toBe('');

The solution here could work for you too.

edited Feb 11 '19 at 10:15

jonrsharpe

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answered Feb 11 '19 at 10:06

Nielsvandenbroeck

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How to display logs in jest unit test?

1 Answers1