commit 49439c4cdf7d2822255f292adda4226656fe144d
author Bram Moolenaar <Bram@vim.org> Mon Feb 20 23:07:05 2017 +0100
committer Bram Moolenaar <Bram@vim.org> Mon Feb 20 23:07:05 2017 +0100
tree 2007c8f88c26e6aab7ce8d2696d57eb8637ae28f
parent e7877fe0de1426f8de9ada825e4f7b64810c7dbc

patch 8.0.0344: unlet command leaks memory

Problem:    Unlet command leaks memory. (Nikolai Pavlov)
Solution:   Free the memory on error. (closes #1497)

src/testdir/test_unlet.vim

diff --git a/src/testdir/test_unlet.vim b/src/testdir/test_unlet.vim
index 4c58785..c20b0be 100644
--- a/src/testdir/test_unlet.vim
+++ b/src/testdir/test_unlet.vim
@@ -17,3 +17,7 @@
   unlet! does_not_exist
   call assert_fails('unlet does_not_exist', 'E108:')
 endfunc
+
+func Test_unlet_fails()
+  call assert_fails('unlet v:["count"]', 'E46:')
+endfunc