vim-patch:9.1.0158: 'shortmess' "F" flag doesn't work properly with 'autoread'

Problem:  'shortmess' "F" flag doesn't work properly with 'autoread'
          (after 9.1.0154)
Solution: Hide the file info message instead of the warning dialog
          (zeertzjq)

closes: vim/vim#14159
closes: vim/vim#14158

https://github.com/vim/vim/commit/8a01744c563f615ae7f6b3ab7f5208214a45a8e2

1 files changed, 26 insertions, 8 deletions

diff --git a/test/old/testdir/test_options.vim b/test/old/testdir/test_options.vim
index 97af202128..7786f82af2 100644
--- a/test/old/testdir/test_options.vim
+++ b/test/old/testdir/test_options.vim
@@ -1284,23 +1284,41 @@ func Test_shortmess_F2()
 endfunc
 
 func Test_shortmess_F3()
-  defer delete('X_dummy')
+  call writefile(['foo'], 'X_dummy', 'D')
 
   set hidden
   set autoread
   e X_dummy
-  e file
-
+  e Xotherfile
+  call assert_equal(['foo'], getbufline('X_dummy', 1, '$'))
   set shortmess+=F
-  call writefile(["foo"], 'X_dummy')
-  call assert_true(empty(execute('bn', '')))
-  call assert_true(empty(execute('bn', '')))
+  echo ''
+
+  if has('nanotime')
+    sleep 10m
+  else
+    sleep 2
+  endif
+  call writefile(['bar'], 'X_dummy')
+  bprev
+  call assert_equal('', Screenline(&lines))
+  call assert_equal(['bar'], getbufline('X_dummy', 1, '$'))
+
+  if has('nanotime')
+    sleep 10m
+  else
+    sleep 2
+  endif
+  call writefile(['baz'], 'X_dummy')
+  checktime
+  call assert_equal('', Screenline(&lines))
+  call assert_equal(['baz'], getbufline('X_dummy', 1, '$'))
 
   set shortmess&
   set autoread&
   set hidden&
-  bwipe
-  bwipe
+  bwipe X_dummy
+  bwipe Xotherfile
 endfunc
 
 func Test_local_scrolloff()