diff --git a/src/testdir/test86.in b/src/testdir/test86.in
index 1ccf7bd..240e07e 100644
--- a/src/testdir/test86.in
+++ b/src/testdir/test86.in
@@ -506,6 +506,11 @@
 :py bopts1=vim.buffers[vim.bindeval("g:bufs")[2]].options
 :py bopts2=vim.buffers[vim.bindeval("g:bufs")[1]].options
 :py bopts3=vim.buffers[vim.bindeval("g:bufs")[0]].options
+:$put ='wopts iters equal: '.pyeval('list(wopts1) == list(wopts2)')
+:$put ='bopts iters equal: '.pyeval('list(bopts1) == list(bopts2)')
+:py gset=set(iter(gopts1))
+:py wset=set(iter(wopts1))
+:py bset=set(iter(bopts1))
 :set path=.,..,,
 :let lst=[]
 :let lst+=[['paste',          1,     0,     1,     2,      1,    1,      0    ]]
@@ -536,6 +541,8 @@
 :       py oval3=bool(oval3)
 :   endif
 :   put ='>>> '.oname
+:   $put ='  g/w/b:'.pyeval('oname in gset').'/'.pyeval('oname in wset').'/'.pyeval('oname in bset')
+:   $put ='  g/w/b (in):'.pyeval('oname in gopts1').'/'.pyeval('oname in wopts1').'/'.pyeval('oname in bopts1')
 :   for v in ['gopts1', 'wopts1', 'bopts1']
 :       try
 :           put ='  p/'.v.': '.Ev('repr('.v.'['''.oname.'''])')
@@ -1122,6 +1129,13 @@
 ee('import failing')
 vim.options['rtp'] = old_rtp
 del old_rtp
+cb.append("> Options")
+cb.append(">> OptionsItem")
+ee('vim.options["abcQ"]')
+ee('vim.options[""]')
+stringtochars_test('vim.options[%s]')
+cb.append(">> OptionsContains")
+stringtochars_test('%s in vim.options')
 cb.append("> Dictionary")
 cb.append(">> DictionaryConstructor")
 ee('vim.Dictionary("abcI")')