patch 8.2.4941: '[ and '] marks may be wrong after undo
Problem: '[ and '] marks may be wrong after undo.
Solution: Adjust the '[ and '] marks if needed. (closes #10407, closes #1281)
diff --git a/src/testdir/test_undo.vim b/src/testdir/test_undo.vim
index bfcc538..596944c 100644
--- a/src/testdir/test_undo.vim
+++ b/src/testdir/test_undo.vim
@@ -756,4 +756,21 @@
bwipe!
endfunc
+func Test_undo_mark()
+ new
+ " The undo is applied to the only line.
+ call setline(1, 'hello')
+ call feedkeys("ggyiw$p", 'xt')
+ undo
+ call assert_equal([0, 1, 1, 0], getpos("'["))
+ call assert_equal([0, 1, 1, 0], getpos("']"))
+ " The undo removes the last line.
+ call feedkeys("Goaaaa\<Esc>", 'xt')
+ call feedkeys("obbbb\<Esc>", 'xt')
+ undo
+ call assert_equal([0, 2, 1, 0], getpos("'["))
+ call assert_equal([0, 2, 1, 0], getpos("']"))
+ bwipe!
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab