Plain text reporter for Vitest

Question

I am wondering if anyone has come up with a plain text reporter for vitest that works well with Jenkins CI and other displays that do not support colored text. It is virtually impossible to read in the Jenkins output or if I run the tests within Sublime Text as a build.

Answer 1

Solution

You need to set the following environment - variable in the Jenkins - build:

NO_COLOR = 'true'

When you are using a Jenkinsfile, it looks like this:

pipeline {
    agent any
    environment { 
        NO_COLOR = 'true'
    }
    stages {
        stage('test') {
            agent {
                docker {
                    image 'node:16.17.0'
                    reuseNode true
                }
            }
            environment {
                 HOME = '.'
            }
            steps {
                sh 'npm install'
                sh 'npm run jenkinsTest'
            }
        }
    }
}

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Explanation

• Vitest is using picolors: https://www.npmjs.com/package/picocolors
• Picolors is using this standard proposal: https://no-color.org/

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Source

https://github.com/vitest-dev/vitest/issues/841#issuecomment-1048997432