{shinytest2}: Unit testing for Shiny applications
summary
Automated regression testing for Shiny apps using shinytest2 which integrates with testthat and runs a headless Chrome via chromote to record interactions as reproducible R code. Tests run through an AppDriver that can record_test and replay inputs and clicks, export internal reactive values with exportTestValues, and optionally open a live Chrome view for debugging. Avoid heavy screenshot snapshots because they’re brittle, prefer explicit expect_* checks and guarded snapshot_file use.
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