Adobe Experience Manager (AEM) is widely used by enterprises for delivering seamless digital experiences. With its increasing adoption, the demand for skilled AEM Testers has grown significantly. Whether you are preparing for an AEM QA role or upgrading your skills, this blog covers the Top 25 AEM Testing Interview Questions and Answers to help you prepare confidently.
1. What is AEM Testing?
AEM Testing involves validating the functionality, performance, usability, accessibility, and integration of websites or applications built on Adobe Experience Manager. It includes testing templates, components, workflows, dialogs, dispatcher configurations, and integrations with systems like Adobe Target, DAM, and Analytics.
2. What are the key areas tested in AEM?
- Authoring functionalities
- Components and templates
- Workflows
- Dispatcher caching
- Permissions and user roles
- DAM assets
- OSGi configurations
- Integrations (Analytics, Target, CRM, APIs)
3. What tools are used for AEM Testing?
- Selenium/WebDriver for UI automation
- AEM Test API / AEM Mocks for backend testing
- Postman for API validation
- JMeter/LoadRunner for performance testing
- aem-cloud-testing tools (for AEM as a Cloud Service)
- Adobe Cloud Manager test automation
4. What is the role of a Dispatcher in AEM?
Dispatcher is AEM’s caching and load-balancing tool. It improves performance and security.
In testing, QA validates cache rules, flush behavior, 404/500 error handling, and security filters.
5. How do you test AEM Components?
- Verify authoring behavior in Edit mode
- Check dialogs (cq:dialog, design dialog)
- Validate responsiveness
- Test dynamic data rendering
- Ensure no broken JS/CSS
- Validate Publish instance functionality
- Check dispatcher cache impact
6. What is AEM Authoring Testing?
Testing authoring includes checking:
- Template usage
- Component drag-and-drop
- In-place editing
- Dialog fields
- Content replication
- Workflow initiation
- Versioning and rollbacks
7. What are Workflows in AEM and how are they tested?
Workflows automate tasks like content approval, translation, or asset processing.
Testing includes:
- Triggering workflow steps
- Validating approver actions
- Checking transitions
- Verifying emails/notifications
- Ensuring workflow completion
8. What is AEM Mocks?
AEM Mocks (via wcm.io) is a framework for unit testing AEM components without running AEM.
Used for:
- Testing Sling Models
- Testing business logic in isolation
9. How do you test AEM as a Cloud Service?
- Validate code through Cloud Manager pipelines
- Use Selenium-based functional tests packaged in pipelines
- Validate repository structure (Cloud-ready)
- Check CDN caching behavior
- Perform smoke testing after deployments
10. What is Sling in AEM Testing?
AEM is built on Apache Sling. Sling maps resources to components.
Testing focus:
- Resource resolution
- Selector extensions
- JSON model output
- OSGi dependencies
11. What is OSGi Testing in AEM?
Testing OSGi includes validating:
- Service activation/deactivation
- Configurations
- Dependency injections
- Logs and error handling
Tools: JUnit + AEM Mocks
12. How do you test AEM APIs?
- Validate REST endpoints (content APIs, Sling Models)
- Use Postman for GET/POST/PUT operations
- Validate JSON structure
- Check permissions/authentication
- Test API caching
13. What is ClientLibs Testing?
Client Libraries (ClientLibs) manage CSS/JS.
Testing includes:
- Proper category inclusion
- No missing resources
- JS execution
- Responsive behavior
14. How do you test AEM Forms?
- Field validations
- Submit actions
- Adaptive form rules
- Prefill functionality
- Data persistence & integrations
- Performance with large forms
15. How do you test Replication in AEM?
- Publishing pages
- Validating in Publish instance
- Testing dispatcher cache updates
- Reverse replication (if used)
16. What is Content Fragment Testing?
Validation includes:
- Fragment models
- Field mappings
- Variations
- Headless API output
Used in omnichannel delivery.
17. What is Experience Fragment Testing?
Ensure:
- Variations render correctly
- References resolve
- Export to Adobe Target works
- JSON output for headless experiences
18. How do you test multi-site setups (MSM)?
- Testing Live Copy
- Rollout configurations
- Blueprint consistency
- Local overrides
- Language copy behavior
19. What is AEM Security Testing?
- Validate permissions
- Test restricted components for authors
- Ensure dispatcher filters block unsafe requests
- Check XSS prevention
- Validate CAPTCHA & CSRF tokens
20. What is AEM Performance Testing?
Use JMeter to test:
- Page load time
- Component performance
- Caching efficiency
- High traffic behaviour
- DAM performance with heavy assets
21. How do you validate logs in AEM?
Check:
- error.log
- request.log
- dispatcher.log
- Cloud Manager logs
Log validation helps identify backend issues.
22. How is Regression Testing done in AEM?
- Maintain reusable test suites
- Use Selenium automation
- Validate previous bugs
- Check core user flows
- Validate templates and major components
23. What is AEM Content Migration Testing?
Includes:
- Verifying migrated content accuracy
- Testing component mapping
- Checking broken links
- Testing outdated templates
- Validating metadata (DAM assets)
24. What is AEM Accessibility Testing?
Test with:
- WCAG guidelines
- Tools like AXE, WAVE
Verify: alt tags, ARIA labels, keyboard navigation.
25. What are common defects in AEM Testing?
- Broken components
- Dialog field issues
- Incorrect dispatcher caching
- Workflow failures
- CSS/JS clientlib loading issues
- Permissions misconfiguration
- API authentication failures
Conclusion
AEM Testing is a specialized skill requiring knowledge of both quality assurance and the Adobe Experience Manager ecosystem. These Top 25 Interview Questions and Answers will help you strengthen your concepts and prepare effectively for interviews.