patch 9.0.0893: 'smoothscroll' cursor calculations wrong when 'number' is set
Problem: 'smoothscroll' cursor calculations wrong when 'number' is set.
Solution: Correct the code that computes the width. (closes #11492)
diff --git a/src/testdir/test_scroll_opt.vim b/src/testdir/test_scroll_opt.vim
index aba8603..d863d03 100644
--- a/src/testdir/test_scroll_opt.vim
+++ b/src/testdir/test_scroll_opt.vim
@@ -308,5 +308,71 @@
call StopVimInTerminal(buf)
endfunc
+" Test that if the current cursor is on a smooth scrolled line, we correctly
+" reposition it. Also check that we don't miscalculate the values by checking
+" the consistency between wincol() and col('.') as they are calculated
+" separately in code.
+func Test_smoothscroll_cursor_position()
+ call NewWindow(10, 20)
+ setl smoothscroll wrap
+ call setline(1, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
+
+ func s:check_col_calc(win_col, win_line, buf_col)
+ call assert_equal(a:win_col, wincol())
+ call assert_equal(a:win_line, winline())
+ call assert_equal(a:buf_col, col('.'))
+ endfunc
+
+ call s:check_col_calc(1, 1, 1)
+ exe "normal \<C-E>"
+
+ " Move down another line to avoid blocking the <<< display
+ call s:check_col_calc(1, 2, 41)
+ exe "normal \<C-Y>"
+ call s:check_col_calc(1, 3, 41)
+ normal ggg$
+ exe "normal \<C-E>"
+
+ " Move down only 1 line when we are out of the range of the <<< display
+ call s:check_col_calc(20, 1, 40)
+ exe "normal \<C-Y>"
+ call s:check_col_calc(20, 2, 40)
+ normal gg
+
+ " Test number, where we have indented lines
+ setl number
+ call s:check_col_calc(5, 1, 1)
+ exe "normal \<C-E>"
+ call s:check_col_calc(5, 2, 33)
+ exe "normal \<C-Y>"
+ call s:check_col_calc(5, 3, 33)
+ normal ggg$
+ exe "normal \<C-E>"
+ call s:check_col_calc(20, 1, 32)
+ exe "normal \<C-Y>"
+ call s:check_col_calc(20, 2, 32)
+ normal gg
+
+ " Test number + showbreak, so test that the additional indentation works
+ setl number showbreak=+++
+ call s:check_col_calc(5, 1, 1)
+ exe "normal \<C-E>"
+ call s:check_col_calc(8, 2, 30)
+ exe "normal \<C-Y>"
+ call s:check_col_calc(8, 3, 30)
+ normal gg
+
+ " Test number + cpo+=n mode, where wrapped lines aren't indented
+ setl number cpo+=n showbreak=
+ call s:check_col_calc(5, 1, 1)
+ exe "normal \<C-E>"
+ call s:check_col_calc(1, 2, 37)
+ exe "normal \<C-Y>"
+ call s:check_col_calc(1, 3, 37)
+ normal gg
+
+ bwipeout!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab