commit 531be47ac5522807b265c6287021a01c9b895ac9
author Bram Moolenaar <Bram@vim.org> Wed Sep 23 22:38:05 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Wed Sep 23 22:38:05 2020 +0200
tree 6ff8a223defdf477cdd5243fc2eee4f53ae71292
parent 851d108313317a062371a6750e6c6bf370a9bafa

patch 8.2.1736: failure to compile a pattern not tested much

Problem:    Failure to compile a pattern not tested much.
Solution:   Add tests where a pattern fails to compile. (Yegappan Lakshmanan,
            closes #7004)

src/testdir/test_history.vim

diff --git a/src/testdir/test_history.vim b/src/testdir/test_history.vim
index feb521e..1bea78d 100644
--- a/src/testdir/test_history.vim
+++ b/src/testdir/test_history.vim
@@ -95,6 +95,7 @@
   call assert_fails('call histnr([])', 'E730:')
   call assert_fails('history xyz', 'E488:')
   call assert_fails('history ,abc', 'E488:')
+  call assert_fails('call histdel(":", "\\%(")', 'E53:')
 endfunction
 
 function Test_Search_history_window()