Fix socket.fakesock compatibility

tests/test_core/test_socket.py

@@ -0,0 +1,48 @@
+import unittest
+from moto import mock_dynamodb2_deprecated, mock_dynamodb2
+import socket
+
+from six import PY3
+
+
+class TestSocketPair(unittest.TestCase):
+
+    @mock_dynamodb2_deprecated
+    def test_asyncio_deprecated(self):
+        if PY3:
+            self.assertIn(
+                'moto.packages.httpretty.core.fakesock.socket',
+                str(socket.socket),
+                'Our mock should be present'
+            )
+            import asyncio
+            self.assertIsNotNone(asyncio.get_event_loop())
+
+    @mock_dynamodb2_deprecated
+    def test_socket_pair_deprecated(self):
+
+        # In Python2, the fakesocket is not set, for some reason.
+        if PY3:
+            self.assertIn(
+                'moto.packages.httpretty.core.fakesock.socket',
+                str(socket.socket),
+                'Our mock should be present'
+            )
+        a, b = socket.socketpair()
+        self.assertIsNotNone(a)
+        self.assertIsNotNone(b)
+        if a:
+            a.close()
+        if b:
+            b.close()
+
+
+    @mock_dynamodb2
+    def test_socket_pair(self):
+        a, b = socket.socketpair()
+        self.assertIsNotNone(a)
+        self.assertIsNotNone(b)
+        if a:
+            a.close()
+        if b:
+            b.close()