From d285d6ca0dc5123b5111239140751f4d986ee15c Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Sun, 11 Feb 2018 14:09:45 +0100
Subject: vim-patch:8.0.1223: crash when using autocomplete and tab pages

Problem:    Crash when using autocomplete and tab pages.
Solution:   Check if the current tab changed. (Christian Brabandt, closes
            vim/vim#2239)

https://github.com/vim/vim/commit/9ad89c6c4f89cd710d8244d8010b8b0ae30ba79d
---
 src/nvim/testdir/test_popup.vim | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/test_popup.vim b/src/nvim/testdir/test_popup.vim
index e1ba142d1c..7f818dd40d 100644
--- a/src/nvim/testdir/test_popup.vim
+++ b/src/nvim/testdir/test_popup.vim
@@ -570,4 +570,41 @@ func Test_completion_clear_candidate_list()
 endfunc
 
 
+func Test_popup_and_preview_autocommand()
+  " This used to crash Vim
+  if !has('python')
+    return
+  endif
+  let h = winheight(0)
+  if h < 15
+    return
+  endif
+  new
+  augroup MyBufAdd
+    au!
+    au BufAdd * nested tab sball
+  augroup END
+  set omnifunc=pythoncomplete#Complete
+  call setline(1, 'import os')
+  " make the line long
+  call setline(2, '                                 os.')
+  $
+  call feedkeys("A\<C-X>\<C-O>\<C-N>\<C-N>\<C-N>\<enter>\<esc>", 'tx')
+  call assert_equal(["import os", "                                 os.EX_IOERR", ''], getline(1,'$'))
+  call assert_equal(1, winnr('$'))
+  " previewwindow option is not set
+  call assert_equal(0, &previewwindow)
+  norm! gt
+  call assert_equal(0, &previewwindow)
+  norm! gT
+  call assert_equal(12, tabpagenr('$'))
+  tabonly
+  pclose
+  augroup MyBufAdd
+    au!
+  augroup END
+  augroup! MyBufAdd
+  bw!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
-- 
cgit