patch 9.1.0260: Problems with "zb" and scrolling to new topline with 'smoothscroll'
Problem: "zb" does not reveal filler lines at the start of a buffer.
Scrolled cursor position with 'smoothscroll' is unpredictable,
and may reset skipcol later if it is not visible (after v9.1.258)
Solution: Replace confusing for loop that reaches final control value too
early with while loop. Set "w_curswant" accordingly so cursor
will be placed in visible part of topline.
(Luuk van Baal)
closes: #14394
Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_normal.vim b/src/testdir/test_normal.vim
index 1acdfce..5b1bb40 100644
--- a/src/testdir/test_normal.vim
+++ b/src/testdir/test_normal.vim
@@ -4210,4 +4210,19 @@
call prop_type_delete(vt)
endfunc
+" Test for zb in buffer with a single line and filler lines
+func Test_single_line_filler_zb()
+ call setline(1, ['', 'foobar one two three'])
+ diffthis
+ new
+ call setline(1, ['foobar one two three'])
+ diffthis
+
+ " zb scrolls to reveal filler lines at the start of the buffer.
+ exe "normal \<C-E>zb"
+ call assert_equal(1, winsaveview().topfill)
+
+ bw!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab nofoldenable