From 18b73ea3c8380f5c99ae6ec6f915e0d448391677 Mon Sep 17 00:00:00 2001
From: VVKot <volodymyr.kot.ua@gmail.com>
Date: Sun, 31 Jan 2021 17:35:20 +0000
Subject: vim-patch:8.1.0138: negative value of 'softtabstop' not used
 correctly

Problem:    Negative value of 'softtabstop' not used correctly.
Solution:   Use get_sts_value(). (Tom Ryder)
https://github.com/vim/vim/commit/33d5ab3795720b7d986f9f17f660ee9e448466e0
---
 src/nvim/testdir/test_tab.vim | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/test_tab.vim b/src/nvim/testdir/test_tab.vim
index b847dbd962..3be30245b9 100644
--- a/src/nvim/testdir/test_tab.vim
+++ b/src/nvim/testdir/test_tab.vim
@@ -1,3 +1,4 @@
+" Various tests for inserting a Tab.
 
 " Tests for "r<Tab>" with 'smarttab' and 'expandtab' set/not set.
 " Also test that dv_ works correctly
@@ -43,3 +44,38 @@ func Test_smarttab()
   enew!
   set expandtab& smartindent& copyindent& ts& sw& sts&
 endfunc
+
+func Test_softtabstop()
+  new
+  set sts=0 sw=0
+  exe "normal ix\<Tab>x\<Esc>"
+  call assert_equal("x\tx", getline(1))
+
+  call setline(1, '')
+  set sts=4
+  exe "normal ix\<Tab>x\<Esc>"
+  call assert_equal("x   x", getline(1))
+
+  call setline(1, '')
+  set sts=-1 sw=4
+  exe "normal ix\<Tab>x\<Esc>"
+  call assert_equal("x   x", getline(1))
+
+  call setline(1, 'x       ')
+  set sts=0 sw=0 backspace=start
+  exe "normal A\<BS>x\<Esc>"
+  call assert_equal("x      x", getline(1))
+
+  call setline(1, 'x       ')
+  set sts=4
+  exe "normal A\<BS>x\<Esc>"
+  call assert_equal("x   x", getline(1))
+
+  call setline(1, 'x       ')
+  set sts=-1 sw=4
+  exe "normal A\<BS>x\<Esc>"
+  call assert_equal("x   x", getline(1))
+
+  set sts=0 sw=0 backspace&
+  bwipe!
+endfunc
-- 
cgit