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-rw-r--r--src/nvim/testdir/test_user_func.vim5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/nvim/testdir/test_user_func.vim b/src/nvim/testdir/test_user_func.vim
index 98c2fdd531..7aa21d7816 100644
--- a/src/nvim/testdir/test_user_func.vim
+++ b/src/nvim/testdir/test_user_func.vim
@@ -423,6 +423,11 @@ func Test_del_func()
func d.fn()
return 1
endfunc
+
+ " cannot delete the dict function by number
+ let nr = substitute(execute('echo d'), '.*function(''\(\d\+\)'').*', '\1', '')
+ call assert_fails('delfunction g:' .. nr, 'E475: Invalid argument: g:')
+
delfunc d.fn
call assert_equal({'a' : 10}, d)
endfunc