Added ipaddress objects conversion

Close #387

1 files changed, 131 insertions, 0 deletions

diff --git a/tests/test_ipaddress.py b/tests/test_ipaddress.py
new file mode 100755
index 0000000..97eabba
--- /dev/null
+++ b/tests/test_ipaddress.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python
+# # test_ipaddress.py - tests for ipaddress support #
+# Copyright (C) 2016 Daniele Varrazzo  <daniele.varrazzo@gmail.com>
+#
+# psycopg2 is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+# License for more details.
+
+from __future__ import unicode_literals
+
+import sys
+from functools import wraps
+
+from testutils import unittest, ConnectingTestCase, decorate_all_tests
+
+import psycopg2
+import psycopg2.extras
+
+
+def skip_if_no_ipaddress(f):
+    @wraps(f)
+    def skip_if_no_ipaddress_(self):
+        if sys.version_info[:2] < (3, 3):
+            try:
+                import ipaddress            # noqa
+            except ImportError:
+                return self.skipTest("'ipaddress' module not available")
+
+        return f(self)
+
+    return skip_if_no_ipaddress_
+
+
+class NetworkingTestCase(ConnectingTestCase):
+    def test_inet_cast(self):
+        import ipaddress as ip
+        cur = self.conn.cursor()
+        psycopg2.extras.register_ipaddress(cur)
+
+        cur.execute("select null::inet")
+        self.assert_(cur.fetchone()[0] is None)
+
+        cur.execute("select '127.0.0.1/24'::inet")
+        obj = cur.fetchone()[0]
+        self.assert_(isinstance(obj, ip.IPv4Interface), repr(obj))
+        self.assertEquals(obj, ip.ip_interface('127.0.0.1/24'))
+
+        cur.execute("select '::ffff:102:300/128'::inet")
+        obj = cur.fetchone()[0]
+        self.assert_(isinstance(obj, ip.IPv6Interface), repr(obj))
+        self.assertEquals(obj, ip.ip_interface('::ffff:102:300/128'))
+
+    def test_inet_array_cast(self):
+        import ipaddress as ip
+        cur = self.conn.cursor()
+        psycopg2.extras.register_ipaddress(cur)
+        cur.execute("select '{NULL,127.0.0.1,::ffff:102:300/128}'::inet[]")
+        l = cur.fetchone()[0]
+        self.assert_(l[0] is None)
+        self.assertEquals(l[1], ip.ip_interface('127.0.0.1'))
+        self.assertEquals(l[2], ip.ip_interface('::ffff:102:300/128'))
+        self.assert_(isinstance(l[1], ip.IPv4Interface), l)
+        self.assert_(isinstance(l[2], ip.IPv6Interface), l)
+
+    def test_inet_adapt(self):
+        import ipaddress as ip
+        cur = self.conn.cursor()
+        psycopg2.extras.register_ipaddress(cur)
+
+        cur.execute("select %s", [ip.ip_interface('127.0.0.1/24')])
+        self.assertEquals(cur.fetchone()[0], '127.0.0.1/24')
+
+        cur.execute("select %s", [ip.ip_interface('::ffff:102:300/128')])
+        self.assertEquals(cur.fetchone()[0], '::ffff:102:300/128')
+
+    def test_cidr_cast(self):
+        import ipaddress as ip
+        cur = self.conn.cursor()
+        psycopg2.extras.register_ipaddress(cur)
+
+        cur.execute("select null::cidr")
+        self.assert_(cur.fetchone()[0] is None)
+
+        cur.execute("select '127.0.0.0/24'::cidr")
+        obj = cur.fetchone()[0]
+        self.assert_(isinstance(obj, ip.IPv4Network), repr(obj))
+        self.assertEquals(obj, ip.ip_network('127.0.0.0/24'))
+
+        cur.execute("select '::ffff:102:300/128'::cidr")
+        obj = cur.fetchone()[0]
+        self.assert_(isinstance(obj, ip.IPv6Network), repr(obj))
+        self.assertEquals(obj, ip.ip_network('::ffff:102:300/128'))
+
+    def test_cidr_array_cast(self):
+        import ipaddress as ip
+        cur = self.conn.cursor()
+        psycopg2.extras.register_ipaddress(cur)
+        cur.execute("select '{NULL,127.0.0.1,::ffff:102:300/128}'::cidr[]")
+        l = cur.fetchone()[0]
+        self.assert_(l[0] is None)
+        self.assertEquals(l[1], ip.ip_network('127.0.0.1'))
+        self.assertEquals(l[2], ip.ip_network('::ffff:102:300/128'))
+        self.assert_(isinstance(l[1], ip.IPv4Network), l)
+        self.assert_(isinstance(l[2], ip.IPv6Network), l)
+
+    def test_cidr_adapt(self):
+        import ipaddress as ip
+        cur = self.conn.cursor()
+        psycopg2.extras.register_ipaddress(cur)
+
+        cur.execute("select %s", [ip.ip_network('127.0.0.0/24')])
+        self.assertEquals(cur.fetchone()[0], '127.0.0.0/24')
+
+        cur.execute("select %s", [ip.ip_network('::ffff:102:300/128')])
+        self.assertEquals(cur.fetchone()[0], '::ffff:102:300/128')
+
+decorate_all_tests(NetworkingTestCase, skip_if_no_ipaddress)
+
+
+def test_suite():
+    return unittest.TestLoader().loadTestsFromName(__name__)
+
+
+if __name__ == "__main__":
+    unittest.main()