grpc added initial tests and fixture to support them

daemon/tests/conftest.py

@@ -3,6 +3,7 @@ Unit test fixture module.
 """
 
 import os
+import threading
 
 import pytest
 from mock.mock import MagicMock
@@ -26,6 +27,8 @@ from core.enumerations import LinkTypes
 from core.enumerations import MessageFlags
 from core.enumerations import NodeTlvs
 from core.enumerations import NodeTypes
+from core.grpc.client import CoreGrpcClient
+from core.grpc.server import CoreGrpcServer
 from core.misc import ipaddress
 from core.misc.ipaddress import MacAddress
 from core.service import ServiceManager
@@ -204,6 +207,18 @@ class CoreServerTest(object):
         self.server.server_close()
 
 
+@pytest.fixture
+def grpc_server():
+    coremu = CoreEmu()
+    grpc_server = CoreGrpcServer(coremu)
+    thread = threading.Thread(target=grpc_server.listen)
+    thread.daemon = True
+    thread.start()
+    yield grpc_server
+    coremu.shutdown()
+    grpc_server.server.stop(None)
+
+
 @pytest.fixture
 def session():
     # use coreemu and create a session
@@ -242,8 +257,6 @@ def cored():
     # cleanup
     server.shutdown()
 
-    #
-
     # cleanup services
     ServiceManager.services.clear()