first commit based on psycopg2 2.9 version

tests/test_ipaddress.py

@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+#
+# test_ipaddress.py - tests for ipaddress support
+#
+# Copyright (C) 2016-2019 Daniele Varrazzo  <daniele.varrazzo@gmail.com>
+# Copyright (C) 2020-2021 The Psycopg Team
+#
+# 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 . import testutils
+import unittest
+
+import psycopg2
+import psycopg2.extras
+
+try:
+    import ipaddress as ip
+except ImportError:
+    # Python 2
+    ip = None
+
+
+@unittest.skipIf(ip is None, "'ipaddress' module not available")
+class NetworkingTestCase(testutils.ConnectingTestCase):
+    def test_inet_cast(self):
+        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'))
+
+    @testutils.skip_before_postgres(8, 2)
+    def test_inet_array_cast(self):
+        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):
+        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')
+
+    @testutils.skip_if_crdb("cidr")
+    def test_cidr_cast(self):
+        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'))
+
+    @testutils.skip_if_crdb("cidr")
+    @testutils.skip_before_postgres(8, 2)
+    def test_cidr_array_cast(self):
+        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):
+        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')
+
+
+def test_suite():
+    return unittest.TestLoader().loadTestsFromName(__name__)
+
+
+if __name__ == "__main__":
+    unittest.main()