Using Playwright with Trunk Flaky Tests

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

Setup steps

Work through the steps below in order. Once you’ve finished the last one, you’ll be ready to move on to configure uploads in CI.

Generate a compatible test report

Configure the report file path or glob

Test uploads locally

Generating Reports

Playwright has multiple built-in reporters, including JUnit XML which Trunk can ingest. To get XML reports, add the following to your Playwright config:

playwright.config.ts

import { defineConfig } from '@playwright/test';

export default defineConfig({
  reporter: [
    ['junit', { outputFile: 'junit.xml' }]
  ],
});

Alternatively, you can specify reporting behavior inline in your CI:

npx playwright test --reporter=junit

Report File Path

You can specify the report’s output location with the PLAYWRIGHT_JUNIT_OUTPUT_FILE environment variable:

export PLAYWRIGHT_JUNIT_OUTPUT_FILE=junit.xml

You can also specify the report’s location in your playwright.config.ts file:

export default defineConfig({
  reporter: [
    ['junit', { outputFile: 'junit.xml' }]
  ],
});

Try It Locally

The Validate Command

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

SKU="trunk-analytics-cli-x86_64-unknown-linux.tar.gz"
curl -fL --retry 3 \
  "https://github.com/trunk-io/analytics-cli/releases/latest/download/${SKU}" \
  | tar -xz

chmod +x trunk-analytics-cli
./trunk-analytics-cli validate --junit-paths "./junit.xml"

SKU="trunk-analytics-cli-aarch64-unknown-linux.tar.gz"
curl -fL --retry 3 \
  "https://github.com/trunk-io/analytics-cli/releases/latest/download/${SKU}" \
  | tar -xz

chmod +x trunk-analytics-cli
./trunk-analytics-cli validate --junit-paths "./junit.xml"

SKU="trunk-analytics-cli-aarch64-apple-darwin.tar.gz"
curl -fL --retry 3 \
  "https://github.com/trunk-io/analytics-cli/releases/latest/download/${SKU}" \
  | tar -xz

chmod +x trunk-analytics-cli
./trunk-analytics-cli validate --junit-paths "./junit.xml"

SKU="trunk-analytics-cli-x86_64-apple-darwin.tar.gz"
curl -fL --retry 3 \
  "https://github.com/trunk-io/analytics-cli/releases/latest/download/${SKU}" \
  | tar -xz

chmod +x trunk-analytics-cli
./trunk-analytics-cli validate --junit-paths "./junit.xml"

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:

./trunk-analytics-cli upload --junit-paths "./junit.xml" \
    --org-url-slug <TRUNK_ORG_URL_SLUG> \
    --test-collection-id <TRUNK_TEST_COLLECTION_ID> \
    --token <TRUNK_ORG_TOKEN>

You can find your Trunk organization slug and token in the settings or by following these instructions. The collection ID identifies the test collection the results belong to, and you copy it from that collection in the Trunk app. 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 Step

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

Playwright

Setup steps

Generating Reports

Report File Path

Try It Locally

The Validate Command

Test Upload

Next Step

Azure DevOps Pipelines

BitBucket Pipelines

BuildKite

CircleCI

Drone CI

GitHub Actions

GitLab

Jenkins

Semaphore

TeamCity

Travis CI

Other CI Providers

​Setup steps

​Generating Reports

​Report File Path

​Try It Locally

​The Validate Command

​Test Upload

​Next Step

Azure DevOps Pipelines

BitBucket Pipelines

BuildKite

CircleCI

Drone CI

GitHub Actions

GitLab

Jenkins

Semaphore

TeamCity

Travis CI

Other CI Providers

Setup steps

Generating Reports

Report File Path

Try It Locally

The Validate Command

Test Upload

Next Step