From 04a4bbbe56fd6cbc164730cb9beab4ec6fefe3b0 Mon Sep 17 00:00:00 2001
From: Jan Edmund Lazo <jan.lazo@mail.utoronto.ca>
Date: Wed, 28 Apr 2021 09:06:05 -0400
Subject: vim-patch:8.2.0860: cannot use CTRL-A and CTRL-X on unsigned numbers

Problem:    Cannot use CTRL-A and CTRL-X on unsigned numbers.
Solution:   Add "unsigned" to 'nrformats'. (Naruhiko Nishino, closes vim/vim#6144)
https://github.com/vim/vim/commit/aaad995f8384a77a64efba6846c9c4ac99de0953
---
 src/nvim/testdir/test_increment.vim | 46 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 45 insertions(+), 1 deletion(-)

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/test_increment.vim b/src/nvim/testdir/test_increment.vim
index f81f8edbde..6d08cd40a8 100644
--- a/src/nvim/testdir/test_increment.vim
+++ b/src/nvim/testdir/test_increment.vim
@@ -1,4 +1,4 @@
-" Tests for using Ctrl-A/Ctrl-X on visual selections
+" Tests for using Ctrl-A/Ctrl-X
 
 func SetUp()
   new dummy
@@ -779,6 +779,50 @@ func Test_increment_empty_line()
   bwipe!
 endfunc
 
+" Try incrementing/decrementing a number when nrformats contains unsigned
+func Test_increment_unsigned()
+  set nrformats+=unsigned
+
+  call setline(1, '0')
+  exec "norm! gg0\<C-X>"
+  call assert_equal('0', getline(1))
+
+  call setline(1, '3')
+  exec "norm! gg010\<C-X>"
+  call assert_equal('0', getline(1))
+
+  call setline(1, '-0')
+  exec "norm! gg0\<C-X>"
+  call assert_equal("-0", getline(1))
+
+  call setline(1, '-11')
+  exec "norm! gg08\<C-X>"
+  call assert_equal('-3', getline(1))
+
+  " NOTE: 18446744073709551615 == 2^64 - 1
+  call setline(1, '18446744073709551615')
+  exec "norm! gg0\<C-A>"
+  call assert_equal('18446744073709551615', getline(1))
+
+  call setline(1, '-18446744073709551615')
+  exec "norm! gg0\<C-A>"
+  call assert_equal('-18446744073709551615', getline(1))
+
+  call setline(1, '-18446744073709551614')
+  exec "norm! gg08\<C-A>"
+  call assert_equal('-18446744073709551615', getline(1))
+
+  call setline(1, '-1')
+  exec "norm! gg0\<C-A>"
+  call assert_equal('-2', getline(1))
+
+  call setline(1, '-3')
+  exec "norm! gg08\<C-A>"
+  call assert_equal('-11', getline(1))
+
+  set nrformats-=unsigned
+endfunc
+
 func Test_normal_increment_with_virtualedit()
   set virtualedit=all
 
-- 
cgit