Implement EDNS Client Subnet option

1 files changed, 48 insertions, 0 deletions

diff --git a/tests/test_option.py b/tests/test_option.py
new file mode 100644
index 0000000..f91485a
--- /dev/null
+++ b/tests/test_option.py
@@ -0,0 +1,48 @@
+# -*- coding: utf-8
+# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import print_function
+
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+from io import BytesIO
+
+import dns.edns
+
+class OptionTestCase(unittest.TestCase):
+    def testGenericOption(self):
+        opt = dns.edns.GenericOption(3, b'data')
+        io = BytesIO()
+        opt.to_wire(io)
+        data = io.getvalue()
+        self.assertEqual(data, b'data')
+
+    def testECSOption(self):
+        opt = dns.edns.ECSOption('1.2.3.4', 24)
+        io = BytesIO()
+        opt.to_wire(io)
+        data = io.getvalue()
+        self.assertEqual(data, b'\x00\x01\x18\x00\x01\x02\x03')
+
+    def testECSOption_v6(self):
+        opt = dns.edns.ECSOption('2001:4b98::1')
+        io = BytesIO()
+        opt.to_wire(io)
+        data = io.getvalue()
+        self.assertEqual(data, b'\x00\x02\x38\x00\x20\x01\x4b\x98\x00\x00\x00')