patch 9.0.2159: screenpos() may crash with neg. column
Problem: screenpos() may crash with neg. column
Solution: validate and correct column
closes: #13669
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_cursor_func.vim b/src/testdir/test_cursor_func.vim
index 3cdf4cb..2bdda86 100644
--- a/src/testdir/test_cursor_func.vim
+++ b/src/testdir/test_cursor_func.vim
@@ -206,6 +206,11 @@
nmenu WinBar.TEST :
call assert_equal(#{col: 1, row: 2, endcol: 1, curscol: 1}, screenpos(win_getid(), 1, 1))
nunmenu WinBar.TEST
+ call assert_equal(#{col: 1, row: 1, endcol: 1, curscol: 1}, screenpos(win_getid(), 1, 1))
+
+ call assert_equal(#{col: 0, row: 0, endcol: 0, curscol: 0}, screenpos(0, 0, 1))
+ call assert_equal(#{col: 0, row: 0, endcol: 0, curscol: 0}, screenpos(0, -1, 1))
+ call assert_equal(#{col: 1, row: 1, endcol: 1, curscol: 1}, screenpos(0, 1, -v:maxcol))
endfunc
func Test_screenpos_fold()