Publishing Test Results Using JEST in Angular

2 minute read

Are you wondering how to publish Test Results over Azure CI Build while using Angular and JEST? In this article I will demonstrate nx monorepo publishing test results using azure pipeline.

If you are u are using Karma Test Runner then read my previous article Publishing Nx Monorepo Test Results in Azure CI Pipeline.

Azure Publish Test Results Task

I am using Azure CI build to build, test and deploy my Angular App.

Azure Publish Test Result Task Name

We will use Azure Task PublishTestResults@2 to publish our angular test results to Azure Pipelines.

Supported Test Results Formats

As of now Azure Task only supports below Test Result formats:

  1. JUnit
  2. NUnit
  3. VSTest
  4. xUnit
  5. cTest

We will use JUnit format to publish Angular Test Result. Also just let you know that Azure The default option uses JUnit format to publish test results.

Generating Test Results in Angular App

When we run test in Angular App Test Results files are supposed to be created.

Installing Jest-JUnit npm Package

Since we are using JEST let’s install jest-junit in our angular app first.

Run below script on root of your project where you see package.json file.

npm i -D jest-junit

Updating Jest.Config

Let’s define the JUnit Reporter config inside the Jest.Config file. Here I will define outputDirectory , outputName and suiteName

 reporters: [
        outputDirectory: 'test_results',
        outputName: 'jest-junit.xml',
        suiteName: 'Angular Inventions Tests'

Creating Test Script

In order to generate report we have to run the test. Add below test script in package.json.

scripts :{
  "test:prod": "jest --ci"

Generating Test Results

Let’s Run npm run test:prod and notice our test is passing.

As well as test report created under folder test_results.

Azure Pipeline Update

In order for publishing your test results on azure pipelines. You can setup your azure-pipelines.yml for showing test results.

Publish Test Results YAML

- task: PublishTestResults@2
  enabled: false
  displayName: Publish Test Results
    testResultsFormat: 'JUnit'
    testResultsFiles: '**/test_results/jest-junit.xml'
    mergeTestResults: true

Thanks for reading my article till end. I hope you learned something special today. If you enjoyed this article then please share to your friends and if you have suggestions or thoughts to share with me then please write in the comment box.

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