From 4ecea0e001533d68f3032fe0512fc55360f295c0 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Thu, 25 Aug 2022 19:35:17 +0800
Subject: vim-patch:8.2.0911: crash when opening a buffer for the cmdline
 window fails

Problem:    Crash when opening a buffer for the cmdline window fails. (Chris
            Barber)
Solution:   Check do_ecmd() succeeds.  Reset got_int if "q" was used at the
            more prompt. (closes vim/vim#6211)
https://github.com/vim/vim/commit/9b7cce28d568f0622d77c6c9878c2d4770c3b164

Make code match latest Vim instead.
---
 test/functional/legacy/cmdline_spec.lua | 79 +++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)

(limited to 'test/functional/legacy/cmdline_spec.lua')

diff --git a/test/functional/legacy/cmdline_spec.lua b/test/functional/legacy/cmdline_spec.lua
index cf02636890..fb054eed9a 100644
--- a/test/functional/legacy/cmdline_spec.lua
+++ b/test/functional/legacy/cmdline_spec.lua
@@ -1,6 +1,7 @@
 local helpers = require('test.functional.helpers')(after_each)
 local Screen = require('test.functional.ui.screen')
 local clear = helpers.clear
+local command = helpers.command
 local feed = helpers.feed
 local feed_command = helpers.feed_command
 local exec = helpers.exec
@@ -141,3 +142,81 @@ describe('cmdline', function()
     ]])
   end)
 end)
+
+describe('cmdwin', function()
+  before_each(clear)
+
+  -- oldtest: Test_cmdwin_interrupted()
+  it('still uses a new buffer when interrupting more prompt on open', function()
+    local screen = Screen.new(30, 16)
+    screen:set_default_attr_ids({
+      [0] = {bold = true, foreground = Screen.colors.Blue},  -- NonText
+      [1] = {bold = true, reverse = true},  -- StatusLine
+      [2] = {reverse = true},  -- StatusLineNC
+      [3] = {bold = true, foreground = Screen.colors.SeaGreen},  -- MoreMsg
+      [4] = {bold = true},  -- ModeMsg
+    })
+    screen:attach()
+    command('set more')
+    command('autocmd WinNew * highlight')
+    feed('q:')
+    screen:expect({any = '{3:%-%- More %-%-}^'})
+    feed('q')
+    screen:expect([[
+                                    |
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {2:[No Name]                     }|
+      {0::}^                             |
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {1:[Command Line]                }|
+                                    |
+    ]])
+    feed([[aecho 'done']])
+    screen:expect([[
+                                    |
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {2:[No Name]                     }|
+      {0::}echo 'done'^                  |
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {1:[Command Line]                }|
+      {4:-- INSERT --}                  |
+    ]])
+    feed('<CR>')
+    screen:expect([[
+      ^                              |
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      {0:~                             }|
+      done                          |
+    ]])
+  end)
+end)
-- 
cgit