patch 8.2.1036: popupwin test fails sometimes
Problem: Popupwin test fails sometimes.
Solution: Use WaitForAssert() instead of a sleep.
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index 42f4256..80a1459 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -2454,9 +2454,11 @@
call term_sendkeys(termbuf2, "exit\<CR>")
" Exiting shell closes popup window
+ let pupwin = win_getid()
call feedkeys("exit\<CR>", 'xt')
" Wait for shell to exit
- sleep 100m
+ call WaitForAssert({-> assert_notequal(pupwin, win_getid())})
+
call feedkeys(":quit\<CR>", 'xt')
call assert_equal(origwin, win_getid())
endfunc