vim-patch:8.2.1844: using "q" at the more prompt doesn't stop a long message

Problem:    Using "q" at the more prompt doesn't stop a long message.
Solution:   Check for "got_int". (closes vim/vim#7122)
https://github.com/vim/vim/commit/3d30af8783bf43fbfece641ec81ad8d2f01b3735

Cherry-pick file name change from patch 8.2.2112.

1 files changed, 38 insertions, 0 deletions

diff --git a/test/functional/legacy/messages_spec.lua b/test/functional/legacy/messages_spec.lua
new file mode 100644
index 0000000000..330d70e7d4
--- /dev/null
+++ b/test/functional/legacy/messages_spec.lua
@@ -0,0 +1,38 @@
+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
+
+before_each(clear)
+
+describe('messages', function()
+  it('more prompt with control characters can be quit vim-patch:8.2.1844', function()
+    local screen = Screen.new(40, 6)
+    screen:set_default_attr_ids({
+      [1] = {foreground = Screen.colors.Blue},  -- SpecialKey
+      [2] = {bold = true, foreground = Screen.colors.SeaGreen},  -- MoreMsg
+      [3] = {bold = true, foreground = Screen.colors.Blue},  -- NonText
+    })
+    screen:attach()
+    command('set more')
+    feed([[:echom range(9999)->join("\x01")<CR>]])
+    screen:expect([[
+      0{1:^A}1{1:^A}2{1:^A}3{1:^A}4{1:^A}5{1:^A}6{1:^A}7{1:^A}8{1:^A}9{1:^A}10{1:^A}11{1:^A}12|
+      {1:^A}13{1:^A}14{1:^A}15{1:^A}16{1:^A}17{1:^A}18{1:^A}19{1:^A}20{1:^A}21{1:^A}22|
+      {1:^A}23{1:^A}24{1:^A}25{1:^A}26{1:^A}27{1:^A}28{1:^A}29{1:^A}30{1:^A}31{1:^A}32|
+      {1:^A}33{1:^A}34{1:^A}35{1:^A}36{1:^A}37{1:^A}38{1:^A}39{1:^A}40{1:^A}41{1:^A}42|
+      {1:^A}43{1:^A}44{1:^A}45{1:^A}46{1:^A}47{1:^A}48{1:^A}49{1:^A}50{1:^A}51{1:^A}52|
+      {2:-- More --}^                              |
+    ]])
+    feed('q')
+    screen:expect([[
+      ^                                        |
+      {3:~                                       }|
+      {3:~                                       }|
+      {3:~                                       }|
+      {3:~                                       }|
+                                              |
+    ]])
+  end)
+end)