commit 801cd35e7e3b21e519e12a1610ee1d721e40893e
author Bram Moolenaar <Bram@vim.org> Mon Oct 10 16:08:16 2022 +0100
committer Bram Moolenaar <Bram@vim.org> Mon Oct 10 16:08:16 2022 +0100
tree 5b24a4313fbbc3821aaf236b3cd6163828d26267
parent 1206c163dbc8caace86e53f375f298af6cfab75a

patch 9.0.0715: wrong argument for append() gives two error messages

Problem:    Wrong argument for append() gives two error messages.
Solution:   When getting an error for a number argument don't try using it as
            a string. (closes #11335)

src/testdir/test_functions.vim

diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index 85e27c6..938a839 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -950,6 +950,8 @@
 
   " Using $ instead of '$' must give an error
   call assert_fails("call append($, 'foobar')", 'E116:')
+
+  call assert_fails("call append({}, '')", ['E728:', 'E728:'])
 endfunc
 
 " Test for setline()