Set up test reporting with Jest - Amazon CodeBuild
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Set up test reporting with Jest

The following procedure demonstrates how to set up test reporting in Amazon CodeBuild with the Jest testing framework.

The procedure requires the following prerequisites:

  • You have an existing CodeBuild project.

  • Your project is a Node.js project that is set up to use the Jest testing framework.

Add the jest-junit package to the devDependencies section of your project's package.json file. CodeBuild uses this package to generate reports in the JunitXml format.

npm install --save-dev jest-junit

If it's not already present, add the test script to your project's package.json file. The test script ensures that Jest is called when npm test is run.

{ "scripts": { "test": "jest" } }

Configure Jest to use the JunitXml reporter by adding the following to your Jest configuration file. If your project does not have a Jest configuration file, create a file named jest.config.js in the root of your project and add the following. The test reports are exported to the file specified by <test report directory>/<report filename>.

module.exports = { reporters: [ 'default', [ 'jest-junit', { outputDirectory: <test report directory>, outputName: <report filename>, } ] ] };

In your buildspec.yml file, add/update the following sections.

version: 0.2 phases: pre_build: commands: - npm install build: commands: - npm build - npm test reports: jest_reports: files: - <report filename> file-format: JUNITXML base-directory: <test report directory>