Implemented core endpoints of ELBv2

tests/test_elbv2/test_server.py

@@ -0,0 +1,17 @@
+from __future__ import unicode_literals
+import sure  # noqa
+
+import moto.server as server
+
+'''
+Test the different server responses
+'''
+
+
+def test_elb_describe_instances():
+    backend = server.create_backend_app("elbv2")
+    test_client = backend.test_client()
+
+    res = test_client.get('/?Action=DescribeLoadBalancers')
+
+    res.data.should.contain(b'DescribeLoadBalancersResponse')