# A Real IntelliJ IDEA Inside Docker: Integration Tests with X Server, Window Manager, and Live Video

DevFeed: [A Real IntelliJ IDEA Inside Docker: Integration Tests with X Server, Window Manager, and Live Video](<https://devfeed.tech/articles/a-real-intellij-idea-inside-docker-integration-tests-with-x-server-window-manager-and-live-video-25425.md>)

Original publisher: [Read original article](<https://jonnyzzz.com/blog/2026/07/05/intellij-in-docker-integration-tests/>)

Author: Eugene Petrenko

Published: 2026-07-05T00:00:00Z

Content type: tutorial

Language: en

Sources: [Eugene Petrenko](<https://devfeed.tech/sources/eugene-petrenko.md>)

Topics: [IntelliJ IDEA](<https://devfeed.tech/topics/intellij-idea.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [Testing](<https://devfeed.tech/topics/testing.md>), [Docker Container](<https://devfeed.tech/topics/docker-container.md>), [FFmpeg (Fast Forward Moving Picture Experts Group)](<https://devfeed.tech/topics/ffmpeg.md>), [GUI](<https://devfeed.tech/topics/gui.md>), [Node.js](<https://devfeed.tech/topics/node-js.md>), [MCP](<https://devfeed.tech/topics/mcp.md>)

Tags: [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [ai-coding](<https://devfeed.tech/tags/ai-coding.md>), [browser](<https://devfeed.tech/tags/browser.md>), [devrig](<https://devfeed.tech/tags/devrig.md>), [docker](<https://devfeed.tech/tags/docker.md>), [docker-container](<https://devfeed.tech/tags/docker-container.md>), [eugene-petrenko](<https://devfeed.tech/tags/eugene-petrenko.md>), [ffmpeg](<https://devfeed.tech/tags/ffmpeg.md>), [gui](<https://devfeed.tech/tags/gui.md>), [intellij](<https://devfeed.tech/tags/intellij.md>), [intellij-idea](<https://devfeed.tech/tags/intellij-idea.md>), [jonnyzzz](<https://devfeed.tech/tags/jonnyzzz.md>), [mcp](<https://devfeed.tech/tags/mcp.md>), [mcp-steroid](<https://devfeed.tech/tags/mcp-steroid.md>), [node-js](<https://devfeed.tech/tags/node-js.md>), [plugin](<https://devfeed.tech/tags/plugin.md>), [tag-41199d53f463](<https://devfeed.tech/tags/tag-41199d53f463.md>), [testing](<https://devfeed.tech/tags/testing.md>), [tests](<https://devfeed.tech/tags/tests.md>)

## AI overview

This tutorial presents a reusable approach for running full IntelliJ IDEA integration tests inside Docker with a GUI. It covers the container image, X server, window management, IDE control, and streaming live video to a browser, with open-source code in the test-integration module.

## Source excerpt

Evals that boot a full IntelliJ IDEA -- pixels, dialogs, indexing and all -- inside a Docker container. Xvfb provides the display, fluxbox keeps the windows in place, ffmpeg records everything, and a tiny Node.js server streams the live video straight into a browser tab on your machine. Here is the whole recipe, so you can build your own.