patch 9.0.1763: crash when passing invalid buffer to undotree()
Problem: crash when passing invalid buffer to undotree()
Solution: Use get_buf_arg() instead of tv_get_buf_from_arg().
closes: #12862
closes: #12830
Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
diff --git a/src/testdir/test_undo.vim b/src/testdir/test_undo.vim
index 461b28f..368ebbe 100644
--- a/src/testdir/test_undo.vim
+++ b/src/testdir/test_undo.vim
@@ -134,6 +134,18 @@
call assert_notequal(d1, d)
call assert_equal(d2, d)
+ " error cases
+ call assert_fails('call undotree(-1)', 'E158:')
+ call assert_fails('call undotree("nosuchbuf")', 'E158:')
+
+ " after creating a buffer nosuchbuf, undotree('nosuchbuf') should
+ " not error out
+ new nosuchbuf
+ let d = {'seq_last': 0, 'entries': [], 'time_cur': 0, 'save_last': 0, 'synced': 1, 'save_cur': 0, 'seq_cur': 0}
+ call assert_equal(d, undotree("nosuchbuf"))
+ " clean up
+ bw nosuchbuf
+
" Drop created windows
set ul&
new