From 3a1973debceca29e65c4f7c83d025cb3314ebaf2 Mon Sep 17 00:00:00 2001
From: Luuk van Baal <luukvbaal@gmail.com>
Date: Wed, 26 Apr 2023 17:08:35 +0200
Subject: vim-patch:9.0.0672: line partly shows with 'smoothscroll' and
 'scrolloff' zero

Problem:    Cursor line only partly shows with 'smoothscroll' and 'scrolloff'
            zero.
Solution:   Do not use 'smoothscroll' when adjusting the bottom of the window.
            (closes vim/vim#11269)

https://github.com/vim/vim/commit/9bab7a024393200bb2c03b3abddfda86436990a7

Co-authored-by: Bram Moolenaar <Bram@vim.org>
---
 test/functional/legacy/scroll_opt_spec.lua | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'test/functional')

diff --git a/test/functional/legacy/scroll_opt_spec.lua b/test/functional/legacy/scroll_opt_spec.lua
index 90417d93f3..c63401cb02 100644
--- a/test/functional/legacy/scroll_opt_spec.lua
+++ b/test/functional/legacy/scroll_opt_spec.lua
@@ -301,4 +301,30 @@ describe('smoothscroll', function()
     feed('<C-E>')
     screen:expect_unchanged()
   end)
+
+  -- oldtest: Test_smoothscroll_wrap_scrolloff_zero()
+  it("works with zero 'scrolloff'", function()
+    screen:try_resize(40, 8)
+    exec([[
+      call setline(1, ['Line' .. (' with some text'->repeat(7))]->repeat(7))
+      set smoothscroll scrolloff=0
+      :3
+    ]])
+    screen:expect([[
+      <<<h some text with some text           |
+      Line with some text with some text with |
+      some text with some text with some text |
+      with some text with some text           |
+      ^Line with some text with some text with |
+      some text with some text with some text |
+      with some text with some text           |
+                                              |
+    ]])
+    feed('j')
+    screen:expect_unchanged()
+    feed('<C-E>j')
+    screen:expect_unchanged()
+    feed('G')
+    screen:expect_unchanged()
+  end)
 end)
-- 
cgit