Setup Visual Testing

July 12, 2025 ยท View on GitHub

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