commit 1b9129809d8269acb8e7c79d8fc99c7976b4f76e
author Bram Moolenaar <Bram@vim.org> Tue Sep 29 21:45:41 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Tue Sep 29 21:45:41 2020 +0200
tree c295744bdee425cdea4e00883d084957c1cb45ce
parent f43e7ac4eee22dbb26fc069ec9a3d1598ec8dfe9

patch 8.2.1773: crash when calling mapset() with a list as first argument

Problem:    Crash when calling mapset() with a list as first argument.
Solution:   Check for NULL. (closes #7040)

src/testdir/test_maparg.vim

diff --git a/src/testdir/test_maparg.vim b/src/testdir/test_maparg.vim
index ea921d6..285474d 100644
--- a/src/testdir/test_maparg.vim
+++ b/src/testdir/test_maparg.vim
@@ -238,6 +238,8 @@
   iunmap K
   let &cpo = cpo_save
   bwipe!
+
+  call assert_fails('call mapset([], v:false, {})', 'E730:')
 endfunc
 
 func Check_ctrlb_map(d, check_alt)