Running 'spelling.R' [0s]
  Running 'testthat.R' [3s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
  > library(testthat)
  > library(autothresholdr)
  > 
  > test_check("autothresholdr")
  -- 1. Error: (unknown) (@test_auto_thresh_methods.R#3)  ------------------------
   The function `ijtiff::read_tif()` is not available on 32-bit windows machines. 
      * 64-bit windows and any Linux or Mac will work.
      * I am sorry about this, I spent many hours trying to get it to work on 32-bit Windows machines but I failed.
  Backtrace:
    1. base::system.file("extdata", "eg.tif", package = "autothresholdr")
    9. ijtiff::read_tif(.)
   10. ijtiff:::err_on_win32bit("read_tif")
   11. ijtiff:::custom_stop(...)
  
  -- 2. Error: mean_stack_thresh works (@test_stack_thresh.R#3)  -----------------
   The function `ijtiff::read_tif()` is not available on 32-bit windows machines. 
      * 64-bit windows and any Linux or Mac will work.
      * I am sorry about this, I spent many hours trying to get it to work on 32-bit Windows machines but I failed.
  Backtrace:
   1. ijtiff::read_tif(system.file("extdata", "50.tif", package = "autothresholdr"))
   2. ijtiff:::err_on_win32bit("read_tif")
   3. ijtiff:::custom_stop(...)
  
  -- 3. Error: auto_thresh works (@test_thresh.R#4)  -----------------------------
   The function `ijtiff::read_tif()` is not available on 32-bit windows machines. 
      * 64-bit windows and any Linux or Mac will work.
      * I am sorry about this, I spent many hours trying to get it to work on 32-bit Windows machines but I failed.
  Backtrace:
    1. base::system.file("extdata", "eg.tif", package = "autothresholdr")
    9. ijtiff::read_tif(.)
   10. ijtiff:::err_on_win32bit("read_tif")
   11. ijtiff:::custom_stop(...)
  
  -- 4. Error: auto_thresh works with matrices (@test_thresh.R#73)  --------------
   The function `ijtiff::read_tif()` is not available on 32-bit windows machines. 
      * 64-bit windows and any Linux or Mac will work.
      * I am sorry about this, I spent many hours trying to get it to work on 32-bit Windows machines but I failed.
  Backtrace:
    1. base::system.file("extdata", "eg.tif", package = "autothresholdr")
    8. ijtiff::read_tif(.)
    9. ijtiff:::err_on_win32bit("read_tif")
   10. ijtiff:::custom_stop(...)
  
  == testthat results  ===========================================================
  [ OK: 6 | SKIPPED: 0 | WARNINGS: 0 | FAILED: 4 ]
  1. Error: (unknown) (@test_auto_thresh_methods.R#3) 
  2. Error: mean_stack_thresh works (@test_stack_thresh.R#3) 
  3. Error: auto_thresh works (@test_thresh.R#4) 
  4. Error: auto_thresh works with matrices (@test_thresh.R#73) 
  
  Error: testthat unit tests failed
  Execution halted