A Robust Framework for Automated Shiny App Testing
summary
Automated regression scripts replace manual pre- and post-deployment checks, using shinytest2 for local snapshots and Selenium (with rvest for scraping) for headless post-deploy verification; test artifacts include screenshots and JSON UI snapshots. A small ice-cream demo app and GitHub repo contain the exact scripts. Deployment lead time drops from five days to five hours after adoption, and tests run consistently and programmatically so pass/fail decisions require no subjective human judgment.
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chapters (9)
- 0:00Introduction
- 1:11Manual testing challenges
- 4:45Tools for automated testing
- 6:09Automated testing pipeline
- 7:33Key principles of testing
- 9:18When automation fits
- 10:19Live demo: pre-deployment with shinytest2
- 12:25Live demo: post-deployment with Selenium
- 13:57Benefits and future
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