added unit tests for the roster

roster/src/main/java/ch/unisg/roster/RosterApplication.java

@@ -1,18 +1,14 @@
 package ch.unisg.roster;
 
 import java.util.List;
-import java.util.concurrent.TimeUnit;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import javax.annotation.PostConstruct;
-
 import ch.unisg.roster.roster.adapter.out.persistence.mongodb.RosterRepository;
 import ch.unisg.roster.roster.application.port.in.LoadRosterItemPort;
 import ch.unisg.roster.roster.domain.Roster;
 import ch.unisg.roster.roster.domain.RosterItem;
 import org.eclipse.paho.client.mqttv3.MqttException;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.core.env.ConfigurableEnvironment;
@@ -30,20 +26,14 @@ public class RosterApplication {
 
     private static ConfigurableEnvironment ENVIRONMENT;
 
-    @Autowired
-    private LoadRosterItemPort loadRosterItemPort;
+    private static LoadRosterItemPort loadRosterItemPort;
 
 	public static void main(String[] args) {
 
-        try {
-            TimeUnit.SECONDS.sleep(10);
-        } catch (InterruptedException e) {
-            // TODO Auto-generated catch block
-            e.printStackTrace();
-        }
 		SpringApplication rosterApp = new SpringApplication(RosterApplication.class);
         ENVIRONMENT = rosterApp.run(args).getEnvironment();
         bootstrapMarketplaceWithMqtt();
+        initialiseRoster();
 	}
 
     /**
@@ -62,9 +52,9 @@ public class RosterApplication {
         }
     }
 
-    @PostConstruct
-    private void initialiseRoster(){
-        Roster.getInstance().initialiseRoster(loadRosterItemPort.loadAllRosterItems());
+    private static void initialiseRoster(){
+        List<RosterItem> rosterItemList = loadRosterItemPort.loadAllRosterItems();
+        Roster.getInstance().initialiseRoster(rosterItemList);
     }
 
 }