Meet the Selenium Grid
2 likes1,899 views
Want to run your tests fast, in multiple threads, different browsers and operation systems? Selenium Grid is for you. Do you have complex UI components? How to run Sikuli image recognition with Selenium tests on the grid? check http://sterodium.io/
![[Perforce] Adventures in Build](https://cdn.slidesharecdn.com/ss_thumbnails/perforce-adventures-in-build-slides-130523180506-phpapp02-thumbnail.jpg?width=560&fit=bounds)
Ad
More Related Content
What's hot (20)
Similar to Meet the Selenium Grid (20)
Ad
Recently uploaded (20)
Ad
Meet the Selenium Grid
- 2. AS WEB DEVELOPER || QA WE WANT Speedometer by Jamie Dickinson flow by AdamTerpenin Responsive Design by Korawan.M FAST PARALLEL MULTIPLE BROWSERS / OS
- 3. – Alexey Nikolaenko “Life is too short to run tests in a single thread”
- 4. servers by Jaime Carrion Selenium Nodes Selenium Hub
- 5. SELENIUM HUB • Entry point for tests • Routes your commands to proper Selenium Node • Manages sessions Selenium Hub
- 6. SELENIUM NODE • Place where tests are executed • Holds browser binaries • Registers itself in Selenium Hub Nerd Penguin by Hayden Kerrisk
- 8. HOW IT WORKS • RemoteWebDriver abstraction • JsonWireProtocol to communicate
- 9. HOW IT WORKS Nodes register on grid
- 10. HOW IT WORKS User by Wilson Joseph from the Noun Project
- 11. HOW IT WORKS Capabilities { platform:“Windows” browserName:“iexplore” } /session
- 12. HOW IT WORKS Session { sessionId:‘xyz’, capabilities: {} }
- 14. HOW IT WORKS Result {…}
- 15. HOW IT WORKS DELETE /session/:sessionId
- 16. OTHER OPTIONS?
- 17. SAUCE LABS • Automated & Manual testing in browsers • Supports over 500 browser / platform combinations • On demand grid • Reporting (video, screenshots, logs) • No maintenance costs • SSLTunnel for ‘security’ (Sauce Connect)
- 18. SAUCE LABS
- 19. “***k PaaS, I want my in-house grid”
- 20. WHY IN-HOUSE? • We are Big Enterprise • Run tests for unlimited time • N x 1000 concurrent users • Without SSL tunnels
- 21. PROBLEMS WITH IN-HOUSE GRID • HUB doesn’t scale well. Single point of failure.
- 22. HOWTO SCALE HUB?
- 23. HOWTO SCALE HUB? … …
- 24. HOWTO SCALE HUB? … …
- 25. HOWTO SCALE HUB? Grid router … …
- 26. HOWTO SCALE HUB? Grid router … … … Load Balancer
- 27. SELENIUM GRID ROUTER • Routes and proxies Selenium WedDriver requests to multiple Selenium Hubs • Access control & Quotas • Developed and used byYandex • https://github.com/seleniumkit/gridrouter
- 28. PROBLEMS WITH IN-HOUSE GRID • HUB doesn’t scale well. Single point of failure. • Browser windows may loose focus in case of multiple executions
- 29. AVOID LOOSING FOCUS • Multiple desktops. Each browser instance has own virtual desktop • Linux - xvfb • Windows - desktop-utils.exe (https://github.com/kybu/ headless-selenium-for-win)
- 30. PROBLEMS WITH IN-HOUSE GRID • HUB doesn’t scale well. Single point of failure. • Browser windows may loose focus in case of multiple executions • Browser versions management
- 31. SELENIUM GRID EXTRAS • Automatically upgrades WebDriver binaries • Video recording, screenshots • Centralised configuration • https://github.com/groupon/Selenium-Grid-Extras
- 32. PROBLEMS WITH IN-HOUSE GRID • HUB doesn’t scale well. Single point of failure. • Browser windows may loose focus in case of multiple executions • Browser version management • Complex UI component tests
- 33. COMPLEX UI COMPONENTS? • Canvas (noVNC, Charts) • Rich JS components
- 34. COMPLEX UI COMPONENTS? • Canvas (noVNC, Charts) • Rich JS components
- 35. SELENIUM GRID EXTENSIONS by sterodium.io
- 36. SELENIUM GRID EXTENSIONS DOWNLOAD / UPLOAD resource capabilities
- 37. SELENIUM GRID EXTENSIONS Extension Proxy Node Extensions - Sikuli Extension - Files Extension
- 38. SELENIUM GRID EXTENSIONS • Sikuli requires own virtual desktop. • Allocate virtual desktop to each Selenium node • Limit session count to 1 per node • Launch multiple nodes on different ports • Images uploaded to Selenium Node. • Same Sikuli API. Just proxied.
- 39. • http://sterodium.io/ • https://github.com/sterodium/selenium-grid-extensions • Examples: https://github.com/echoAlexey/selenium-examples
- 44. Q/A
- 45. ABOUT ME • Software Engineer @ NeuedaTechnologies • Working on a set of tools forTest Automation. • @echoAlexey • [email protected]