commit 21456cdccbdf9d222938139769f1abe95b8effdd
author Bram Moolenaar <Bram@vim.org> Thu Feb 13 21:29:32 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Thu Feb 13 21:29:32 2020 +0100
tree d5d71fb7b621390690e1495e296da3f91d94eca1
parent 3dd64608f6183a49c6854652017b928556224935

patch 8.2.0253: crash when using :disassamble without argument

Problem:    Crash when using :disassamble without argument. (Dhiraj Mishra)
Solution:   Check for missing argument. (Dominique Pelle, closes #5635,
            closes #5637)

src/testdir/test_vim9_disassemble.vim

diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index d10e741..a873c86 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -23,6 +23,10 @@
 def Test_disassemble_load()
   assert_fails('disass NoFunc', 'E1061:')
   assert_fails('disass NotCompiled', 'E1062:')
+  assert_fails('disass', 'E471:')
+  assert_fails('disass [', 'E475:')
+  assert_fails('disass 234', 'E475:')
+  assert_fails('disass <XX>foo', 'E475:')
 
   let res = execute('disass s:ScriptFuncLoad')
   assert_match('<SNR>\d*_ScriptFuncLoad.*'