R Under development (unstable) (2023-08-10 r84931 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(shiny)
> 
> test_check("shiny")
[ FAIL 0 | WARN 0 | SKIP 15 | PASS 1573 ]

══ Skipped tests (15) ══════════════════════════════════════════════════════════
• File system is not case-sensitive (1): 'test-app.R:32:3'
• I'm not sure of a great way to test this without timers. (1):
  'test-test-server.R:218:3'
• Not testing in CI (1): 'test-devmode.R:17:3'
• On CRAN (10): 'test-pkgdown.R:3:3', 'test-reactivity.r:147:3',
  'test-reactivity.r:1239:3', 'test-reactivity.r:1318:3',
  'test-stacks.R:127:3', 'test-tabPanel.R:51:3', 'test-tabPanel.R:65:3',
  'test-tabPanel.R:72:3', 'test-tabPanel.R:87:3', 'test-utils.R:177:3'
• On Windows (1): 'test-shinywrappers.R:36:3'
• shinytest2 cannot be loaded (1): 'test-test-shinyAppTemplate.R:2:1'

[ FAIL 0 | WARN 0 | SKIP 15 | PASS 1573 ]
> 
> proc.time()
   user  system elapsed 
  22.18    0.90   28.21