shinytest2-unit-testing-for-shiny.md

talk_id	talk_slug	talk_type	talk_tags	session_slug	talk_title	talk_title_short	talk_materials_url	speakers
22115	shinytest2-unit-testing-for-shiny	regular	programming shiny	big-shiny-apps	{shinytest2}: Unit testing for Shiny applications	shinytest2		name affiliation url username photo bio Barret Schloerke RStudio webpage twitter github linkedin affiliation http://schloerke.com/ https://twitter.com/schloerke https://github.com/schloerke https://www.linkedin.com/in/schloerke/ https://www.rstudio.com/ barret_schloerke /assets/img/2022Conf/_talks/22115_barret-schloerke.png `hello()`! Dr. Barret Schloerke is a Shiny Software Engineer at RStudio. He currently maintains and creates many R packages surrounding the Shiny ecosystem, including `{shiny}`, `{shinytest2}`, `{reactlog}`, and `{plumber}`.

Manually testing Shiny applications is often laborious, inconsistent, and doesn’t scale well. Whether you are developing new features, fixing bug(s), or simply upgrading dependencies, it is critical to know when regressions are introduced. The new {shinytest2} R package provides a toolkit for unit testing Shiny apps and seamlessly integrates with {testthat}. Under the hood, it uses the new {chromote} R package to render apps in a headless Chrome browser with features such as live preview and built in debugging tools. In this talk, you’ll learn how to test Shiny apps by simply recording your actions as code and extending it to test more particular aspects of your app, resulting in fewer bugs and more confidence in future development.