Kotest

You can automatically detect and manage flaky tests in your Kotest projects by integrating with Trunk. This document explains how to configure Kotest to output JUnit XML reports that can be uploaded to Trunk for analysis.

Checklist

By the end of this guide, you should achieve the following before proceeding to the next steps to configure your CI provider.

• Generate a compatible test report

• Configure the report file path or glob

• Disable retries for better detection accuracy

• Test uploads locally

After correctly generating reports following the above steps, you'll be ready to move on to the next steps to configure uploads in CI.

Generating Reports

Steps for generating JUnit XML reports for Kotest depend on the build system you use for your project:

<project>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>3.2.2</version>
            </plugin>
            
            <!-- other plugins -->
        </plugins>
    </build>
</project>

<dependencies>
    <dependency>
        <groupId>io.kotest</groupId>
        <artifactId>kotest-extensions-junitxml-jvm</artifactId>
        <version>5.9.0</version>
        <scope>test</scope>
    </dependency>
    
    <!-- other dependencies -->
</dependencies>

Report File Path

You can configure the path for generated JUnit XML files:

java.testResultsDir = layout.buildDirectory.dir("junit-reports")

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>3.2.2</version>
    <configuration>
        <reportsDirectory>${project.build.directory}/junit/</reportsDirectory>
    </configuration>
</plugin>

Disable Retries

You need to disable automatic retries if you previously enabled them. Retries compromise the accurate detection of flaky tests. You should disable retries for accurate detection and use the Quarantining feature to stop flaky tests from failing your CI jobs.

Try It Locally

The Validate Command

You can validate your test reports using the Trunk CLI. If you don't have it installed already, you can install and run the validate command like this:

Make sure to specify the path to your JUnit XML test reports.

This will not upload anything to Trunk. To improve detection accuracy, you should address all errors and warnings before proceeding to the next steps.

Test Upload

Before modifying your CI jobs to automatically upload test results to Trunk, try uploading a single test run manually.

You make an upload to Trunk using the following command:

You can find your Trunk organization slug and token in the settings or by following these instructions. After your upload, you can verify that Trunk has received and processed it successfully in the Uploads tab. Warnings will be displayed if the report has issues.

Next Steps

Configure your CI to upload test runs to Trunk. Find the guides for your CI framework below:

Azure DevOps Pipelines

BitBucket Pipelines

BuildKite

CircleCI

Drone CI

GitHub Actions

Gitlab

Jenkins

Semaphore

TeamCity

Travis CI

Other CI Providers