ADD: added test for direct zmq tcp and a first version of the server and client class

tests/test_DirectComms.cpp

@@ -0,0 +1,74 @@
+/*
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at https://mozilla.org/MPL/2.0/.
+*/
+
+/**
+* @file
+* @copyright 2022 MPLv2
+*/
+
+/**
+* @defgroup tests
+*/
+
+
+
+#include <string>
+#define CATCH_CONFIG_MAIN
+
+#include <catch2/catch.hpp>
+
+#include <DirectCommunicationClient.hpp>
+#include <DirectCommunicationServer.hpp>
+#include <loguru.hpp>
+
+#include <memory>
+
+/**
+* @brief brief test description
+* @ingroup group
+*/
+SCENARIO("A test scenario","[keywords]")
+{
+  GIVEN("Preliminaries")
+  {
+        DirectCommunication::DirectCommunicationServer server(5555);
+        // std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+
+        DirectCommunication::DirectCommunicationClient client(5555,"127.0.0.1");
+    
+    std::string msg1 = "hello client";
+    std::string msg2 = "hello client again";
+
+
+    WHEN("doing something")
+    { 
+      client.sendMessage("hello server");  
+      std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+
+      auto msg1FromClient = server.getLatestMessage();  
+      LOG_S(INFO)<< *msg1FromClient.get();
+      LOG_S(INFO)<< server.countClients();
+      THEN("expecting something to happen")
+      {
+        REQUIRE(server.countClients() == 1 );
+        std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+
+        REQUIRE(*msg1FromClient.get() == "hello server");
+        std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+
+        server.sendMessage(msg1);
+        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+        REQUIRE(*client.getLatestMessage().get() == msg1);
+
+        server.sendMessage(msg2);
+        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+        REQUIRE(*client.getLatestMessage().get() == msg2);
+
+
+      } // THEN
+    } // WHEN
+  } // GIVEN
+} // SCENARIO