Running ‘spelling.R’
  Running ‘testthat.R’ [56s/139s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(shinytest2)
  > 
  > test_check("shinytest2")
  [ FAIL 2 | WARN 0 | SKIP 3 | PASS 318 ]
  
  ══ Skipped tests ═══════════════════════════════════════════════════════════════
  • App test folders have been ignored (1)
  • On CRAN (2)
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Failure ('test-not-testing.R:31'): Running an app not in testing mode has 404 handled when getting values ──
  !is.null(app_url) is not TRUE
  
  `actual`:   FALSE
  `expected`: TRUE 
  ── Error ('test-not-testing.R:33'): Running an app not in testing mode has 404 handled when getting values ──
  Error in `app_initialize(self, private, app_dir = app_dir, ..., load_timeout = load_timeout, 
      timeout = timeout, wait = wait, expect_values_screenshot_args = expect_values_screenshot_args, 
      screenshot_args = screenshot_args, check_names = check_names, 
      name = name, variant = variant, view = view, height = height, 
      width = width, seed = seed, clean_logs = clean_logs, shiny_args = shiny_args, 
      render_args = render_args, options = options)`: Assertion on 'app_dir' failed: Must be of type 'character', not 'NULL'.
  
  
  i You can inspect the failed AppDriver object via `rlang::last_error()$app`
  i AppDriver logs:
  {shinytest2} R info 05:51:30.52 Start AppDriver initialization
  {shinytest2} R info 05:51:30.54 Starting Shiny app
  {shinytest2} R info 05:51:30.54 Error while initializing AppDriver:
                                  Assertion on 'app_dir' failed: Must be of type 'character', not 'NULL'.
  
  
  Caused by error in `ckm8_assert_single_string()`:
  ! Assertion on 'app_dir' failed: Must be of type 'character', not 'NULL'.
  Backtrace:
       ▆
    1. ├─AppDriver$new(app_url) at test-not-testing.R:33:2
    2. │ └─shinytest2 (local) initialize(...)
    3. │   └─shinytest2:::app_initialize(...)
    4. │     ├─base::withCallingHandlers(...)
    5. │     └─shinytest2:::app_initialize_(self, private, ..., view = view)
    6. │       └─shinytest2:::app_set_dir(self, private, app_dir)
    7. │         └─shinytest2:::app_dir_value(app_dir)
    8. │           └─shinytest2:::ckm8_assert_single_string(app_dir)
    9. │             └─checkmate::assert_character(...)
   10. │               └─checkmate::makeAssertion(x, res, .var.name, add)
   11. │                 └─checkmate:::mstop(...)
   12. │                   └─base::stop(simpleError(sprintf(msg, ...), call.))
   13. └─shinytest2 (local) `<fn>`(`<smplErrr>`)
   14.   └─shinytest2:::app_abort(...)
   15.     └─rlang::abort(..., app = self, call = call)
  
  [ FAIL 2 | WARN 0 | SKIP 3 | PASS 318 ]
  Error: Test failures
  Execution halted