Setup Visual Testing

Setup visual regression testing

Instructions

1. Visual Testing Strategy Analysis

   • Analyze current UI/component structure and testing needs
   • Identify critical user interfaces and visual components
   • Determine testing scope (components, pages, user flows)
   • Assess existing testing infrastructure and integration points
   • Plan visual testing coverage and baseline creation strategy

2. Visual Testing Tool Selection

   • Evaluate visual testing tools based on project requirements:
     • Chromatic: For Storybook integration and component testing
     • Percy: For comprehensive visual testing and CI integration
     • Playwright: For browser-based visual testing with built-in capabilities
     • BackstopJS: For lightweight visual regression testing
     • Applitools: For AI-powered visual testing and cross-browser support
   • Consider factors: budget, team size, CI/CD integration, browser support

3. Visual Testing Framework Installation

   • Install chosen visual testing tool and dependencies
   • Configure testing framework integration (Jest, Playwright, Cypress)
   • Set up browser automation and screenshot capabilities
   • Configure testing environment and viewport settings
   • Set up test runner and execution environment

4. Baseline Creation and Management

   • Create initial visual baselines for all critical UI components
   • Establish baseline approval workflow and review process
   • Set up baseline version control and storage
   • Configure baseline updates and maintenance procedures
   • Implement baseline branching strategy for feature development

5. Test Configuration and Setup

   • Configure visual testing parameters (viewports, browsers, devices)
   • Set up visual diff thresholds and sensitivity settings
   • Configure screenshot capture settings and optimization
   • Set up test data and state management for consistent testing
   • Configure async loading and timing handling

6. Component and Page Testing

   • Create visual tests for individual UI components
   • Set up page-level visual testing for critical user flows
   • Configure responsive design testing across different viewports
   • Implement cross-browser visual testing
   • Set up accessibility and color contrast visual validation

7. CI/CD Pipeline Integration

   • Configure automated visual testing in CI/CD pipeline
   • Set up visual test execution on pull requests
   • Configure test result reporting and notifications
   • Set up deployment blocking for failed visual tests
   • Implement parallel test execution for performance

8. Review and Approval Workflow

   • Set up visual diff review and approval process
   • Configure team notifications for visual changes
   • Establish approval authority and review guidelines
   • Set up automated approval for minor acceptable changes
   • Configure change documentation and tracking

9. Monitoring and Maintenance

   • Set up visual test performance monitoring
   • Configure test flakiness detection and resolution
   • Implement baseline cleanup and maintenance procedures
   • Set up visual testing metrics and reporting
   • Configure alerting for test failures and issues

10. Documentation and Team Training

    • Create comprehensive visual testing documentation
    • Document baseline creation and update procedures
    • Create troubleshooting guide for common visual testing issues
    • Train team on visual testing workflows and best practices
    • Set up visual testing standards and conventions
    • Document visual testing maintenance and optimization procedures