new file mode 100644
--- /dev/null
+++ b/src/testdir/test_autocmd_option.in
@@ -0,0 +1,73 @@
+Test for option autocommand
+
+STARTTEST
+:so small.vim
+:if !has("eval") || !has("autocmd") | e! test.ok | w! test.out | qa! | endif
+:fu! AutoCommand(match)
+:	let c=g:testcase
+:       let item=remove(g:options, 0)
+:       let c.=printf("Expected: Name: <%s>, Oldval: <%s>, NewVal: <%s>, Scope: <%s>\n", item[0], item[1], item[2], item[3])
+:       let c.=printf("Autocmd Option: <%s>,", a:match)
+:       let c.=printf(" OldVal: <%s>,", v:option_old)
+:       let c.=printf(" NewVal: <%s>,", v:option_new)
+:       let c.=printf(" Scope: <%s>\n", v:option_type)
+:       call setreg('r', printf("%s\n%s", getreg('r'), c))
+:endfu
+:au OptionSet * :call AutoCommand(expand("<amatch>"))
+:let g:testcase="1: Setting number option\n"
+:let g:options=[['number', 0, 1, 'global']]
+:set nu
+:let g:testcase="2: Setting local number option\n"
+:let g:options=[['number', 1, 0, 'local']]
+:setlocal nonu
+:let g:testcase="3: Setting global number option\n"
+:let g:options=[['number', 1, 0, 'global']]
+:setglobal nonu
+:let g:testcase="4: Setting local autoindent option\n"
+:let g:options=[['autoindent', 0, 1, 'local']]
+:setlocal ai
+:let g:testcase="5: Setting global autoindent option\n"
+:let g:options=[['autoindent', 0, 1, 'global']]
+:setglobal ai
+:let g:testcase="6: Setting global autoindent option\n"
+:let g:options=[['autoindent', 1, 0, 'global']]
+:set ai!
+: Should not print anything, use :noa
+:noa :set nonu
+:let g:testcase="7: Setting several global list and number option\n"
+:let g:options=[['list', 0, 1, 'global'], ['number', 0, 1, 'global']]
+:set list nu
+:noa set nolist nonu
+:let g:testcase="8: Setting global acd\n"
+:let g:options=[['autochdir', 0, 1, 'global']]
+:setlocal acd
+:let g:testcase="9: Setting global autoread\n"
+:let g:options=[['autoread', 0, 1, 'global']]
+:set ar
+:let g:testcase="10: Setting local autoread\n"
+:let g:options=[['autoread', 0, 1, 'local']]
+:setlocal ar
+:let g:testcase="11: Setting global autoread\n"
+:let g:options=[['autoread', 1, 0, 'global']]
+:setglobal invar
+:let g:testcase="12: Setting option backspace through :let\n"
+:let g:options=[['backspace', '', 'eol,indent,start', 'global']]
+:let &bs="eol,indent,start"
+:let g:testcase="13: Setting option backspace through setbufvar()\n"
+:let g:options=[['backup', '', '1', 'local']]
+: "try twice, first time, shouldn't trigger because option name is invalid, second time, it should trigger
+:call setbufvar(1, '&l:bk', 1)
+: "should trigger, use correct option name
+:call setbufvar(1, '&backup', 1)
+:" Write register now, because next test shouldn't output anything.
+:$put r
+:let @r=''
+:let g:testcase="\n14: Setting key option, shouldn't trigger\n"
+:let g:options=[['key', 'invalid', 'invalid1', 'invalid']]
+:setlocal key=blah
+:setlocal key=
+:$put =g:testcase
+:%w! test.out
+:qa!
+ENDTEST
+dummy text