Patch 8.2.4879
Problem:    Screendump test may fail when using valgrind.
Solution:   Wait longer for the first screendump.
Files:      src/testdir/test_vim9_builtin.vim, src/testdir/screendump.vim


*** ../vim-8.2.4878/src/testdir/test_vim9_builtin.vim   2022-05-05 
13:52:59.416192105 +0100
--- src/testdir/test_vim9_builtin.vim   2022-05-06 11:14:13.593320804 +0100
***************
*** 4552,4558 ****
      END
      call writefile(lines, 'Xgotoscript')
      let buf = RunVimInTerminal('-S Xgotoscript', #{rows: 15, wait_for_ruler: 
0})
!     call VerifyScreenDump(buf, 'Test_win_gotoid_1', {})
      call term_sendkeys(buf, "3Gvl")
      call VerifyScreenDump(buf, 'Test_win_gotoid_2', {})
  
--- 4552,4559 ----
      END
      call writefile(lines, 'Xgotoscript')
      let buf = RunVimInTerminal('-S Xgotoscript', #{rows: 15, wait_for_ruler: 
0})
!     " wait longer here, since we didn't wait for the ruler
!     call VerifyScreenDump(buf, 'Test_win_gotoid_1', #{wait: 3000})
      call term_sendkeys(buf, "3Gvl")
      call VerifyScreenDump(buf, 'Test_win_gotoid_2', {})
  
*** ../vim-8.2.4878/src/testdir/screendump.vim  2022-02-10 19:51:42.545569904 
+0000
--- src/testdir/screendump.vim  2022-05-06 11:18:24.565198800 +0100
***************
*** 15,29 ****
  
  " Verify that Vim running in terminal buffer "buf" matches the screen dump.
  " "options" is passed to term_dumpwrite().
  " The file name used is "dumps/{filename}.dump".
  " Optionally an extra argument can be passed which is prepended to the error
  " message.  Use this when using the same dump file with different options.
- " Will wait for up to a second for the screen dump to match.
  " Returns non-zero when verification fails.
  func VerifyScreenDump(buf, filename, options, ...)
    let reference = 'dumps/' . a:filename . '.dump'
    let testfile = 'failed/' . a:filename . '.dump'
  
    " Starting a terminal to make a screendump is always considered flaky.
    let g:test_is_flaky = 1
  
--- 15,32 ----
  
  " Verify that Vim running in terminal buffer "buf" matches the screen dump.
  " "options" is passed to term_dumpwrite().
+ " Additionally, the "wait" entry can specify the maximum time to wait for the
+ " screen dump to match in msec (default 1000 msec).
  " The file name used is "dumps/{filename}.dump".
  " Optionally an extra argument can be passed which is prepended to the error
  " message.  Use this when using the same dump file with different options.
  " Returns non-zero when verification fails.
  func VerifyScreenDump(buf, filename, options, ...)
    let reference = 'dumps/' . a:filename . '.dump'
    let testfile = 'failed/' . a:filename . '.dump'
  
+   let max_loops = get(a:options, 'wait', 1000) / 10
+ 
    " Starting a terminal to make a screendump is always considered flaky.
    let g:test_is_flaky = 1
  
***************
*** 60,66 ****
        endif
        break
      endif
!     if i == 100
        " Leave the failed dump around for inspection.
        if filereadable(reference)
        let msg = 'See dump file difference: call term_dumpdiff("testdir/' .. 
testfile .. '", "testdir/' .. reference .. '")'
--- 63,69 ----
        endif
        break
      endif
!     if i == max_loops
        " Leave the failed dump around for inspection.
        if filereadable(reference)
        let msg = 'See dump file difference: call term_dumpdiff("testdir/' .. 
testfile .. '", "testdir/' .. reference .. '")'
*** ../vim-8.2.4878/src/version.c       2022-05-06 11:02:01.681901115 +0100
--- src/version.c       2022-05-06 11:20:39.349119884 +0100
***************
*** 748,749 ****
--- 748,751 ----
  {   /* Add new patch number below this line */
+ /**/
+     4879,
  /**/

-- 
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///                                                                      \\\
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