Screenshotbot is a comprehensive screenshot testing and visual regression tracking service built with Common Lisp. It provides a self-hostable platform that integrates with CI/CD systems to capture, compare, and report on screenshots from mobile and web tests. The system features a multi-tier architecture with a Lisp backend (using Hunchentoot), Bootstrap-based frontend, custom object persistence layer, and extensible plugin architecture for integrations with version control systems (GitHub, GitLab, etc.) and communication platforms (Slack, Email). Key components include SDKs for Android/Firebase integration, a Gradle plugin for Android builds, and a CLI tool for CI workflow integration. The platform includes user authentication, team management, role-based access control, audit logging, and a dashboard for visualizing test results.
Roborazzi is a Kotlin-based visual regression testing framework for Android, Compose Multiplatform (Desktop, iOS), and pure JVM. It integrates with Robolectric to capture screenshots of UI components in unit tests, compares them against golden images, and generates detailed reports (HTML, JSON, PR comments). The framework includes a Gradle plugin that creates record/verify/compare tasks, a JUnit rule for automatic capture, support for GIF/APNG/video recording, UI tree dumps, accessibility checks (via ATF), and experimental AI-powered image assertions (Gemini, OpenAI). It also auto-generates screenshot tests from Compose `@Preview` annotations for both Robolectric and Desktop targets. The architecture is modular: a core library with platform-specific implementations for Android, Desktop, and iOS; a painter module for image encoding/decoding; and separate modules for Compose integration, JUnit rules, preview scanning, and an IntelliJ/Android Studio plugin. The codebase is actively maintained, well-documented, and employs modern Kotlin patterns (KMP, Gradle Configuration Cache, BuildService). It is not a data research project.