CI: test mode inference

test/files/peerlist_nolocalhost

@@ -0,0 +1 @@
+192.0.2.1

test/files/test_milter_mode_none_sign.conf

@@ -0,0 +1,5 @@
+Domain          example.com
+AuthservID      example.com
+KeyFile         private.key
+TestKeys        public.key
+Selector        elpmaxe

test/files/test_milter_mode_none_verify.conf

@@ -0,0 +1,6 @@
+Domain          example.com
+AuthservID      example.com
+KeyFile         private.key
+TestKeys        public.key
+Selector        elpmaxe
+InternalHosts   peerlist_nolocalhost

test/test_milter.py

@@ -176,6 +176,34 @@ def test_milter_mode_v(run_miltertest):
     assert msg['ARC-Seal'] == ''
 
 
+def test_milter_mode_none_verify(run_miltertest):
+    res = run_miltertest([])
+
+    assert res.returncode == 0
+    assert res.stderr == ''
+
+    msg = message_from_string(res.stdout)
+
+    assert msg['Authentication-Results'] == 'example.com; arc=none smtp.remote-ip=127.0.0.1'
+    assert msg['ARC-Authentication-Results'] == ''
+    assert msg['ARC-Message-Signature'] == ''
+    assert msg['ARC-Seal'] == ''
+
+
+def test_milter_mode_none_sign(run_miltertest):
+    res = run_miltertest([])
+
+    assert res.returncode == 0
+    assert res.stderr == ''
+
+    msg = message_from_string(res.stdout)
+
+    assert msg['Authentication-Results'] == ''
+    assert msg['ARC-Authentication-Results'] == 'i=1; example.com; arc=none'
+    assert 'ARC-Message-Signature' in msg
+    assert 'cv=none' in msg['ARC-Seal']
+
+
 def test_milter_ar(run_miltertest):
     res = run_miltertest([])
     msg = message_from_string(res.stdout)