Test Shiny App

Set up comprehensive testing for Shiny applications using shinytest2 (end-to-end) and testServer() (unit tests).

When to Use

• Adding tests to an existing Shiny application
• Setting up a testing strategy for a new Shiny project
• Writing regression tests before refactoring Shiny code
• Integrating Shiny app tests into CI/CD pipelines

Inputs

• Required: Path to the Shiny application
• Required: Test scope (unit tests, end-to-end, or both)
• Optional: Whether to use snapshot testing (default: yes for e2e)
• Optional: CI platform (GitHub Actions, GitLab CI)
• Optional: Modules to test in isolation