create Itinerary method testing

src/main/java/hs/fulda/de/ci/exam/project/FrontDeskOfficer.java

@@ -0,0 +1,41 @@
+package hs.fulda.de.ci.exam.project;
+
+import java.util.Collection;
+import java.util.Date;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class FrontDeskOfficer extends Person{
+
+    Map<String, Itinerary> itineraryList = new ConcurrentHashMap<String, Itinerary>();
+
+    public FrontDeskOfficer(String name, Address address, String email, String phone) {
+        super(name, address, email, phone);
+    }
+
+    public void createItinerary(Airport start_airport, Airport final_airport, Date date){
+        Itinerary itinerary = new Itinerary(start_airport, final_airport, date);
+        validateItinerary(itinerary);
+        checkIfItineraryAlreadyExist(itinerary);
+        itineraryList.put(generateKey(itinerary), itinerary);
+    }
+
+    public Collection<Itinerary> getAllItineraries() {
+        return  itineraryList.values();
+    }
+    
+    private void checkIfItineraryAlreadyExist(Itinerary itinerary){
+        if(itineraryList.containsKey(generateKey(itinerary))){
+            throw new RuntimeException("Itinerary Already Exists");
+        }
+    }
+
+    private String generateKey(Itinerary itinerary) {
+        return String.format("%s-%s", itinerary.getStart_airport(), itinerary.getFinal_airport());
+    }
+
+    public void validateItinerary(Itinerary itinerary){
+        itinerary.validateStartAirport();
+        itinerary.validateFinalAirport();
+    }
+}

src/main/java/hs/fulda/de/ci/exam/project/Itinerary.java

@@ -73,5 +73,14 @@ public class Itinerary {
         this.start_airport = start_airport;
     }
 
+    public void validateStartAirport() {
+        if(this.start_airport.getName().isBlank())
+            throw new RuntimeException(("Starting Airport Cannot be null or empty"));
+    }
+
+    public void validateFinalAirport() {
+        if(this.final_airport.getName().isBlank())
+            throw new RuntimeException(("Destination Airport Cannot be null or empty"));
+    }
 }
 

src/test/java/hs/fulda/de/ci/exam/project/FrontDeskOfficerTest.java

@@ -0,0 +1,26 @@
+package hs.fulda.de.ci.exam.project;
+
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+
+import java.util.Date;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class FrontDeskOfficerTest {
+    @Test
+    public void shouldCreateItinerary() {
+        final Address address1 = new Address("Fuldaer str", "Fulda", "Hessen", "36037", "Germany");
+        final Airport airport_fr = new Airport("Fraport", address1, "1234");
+        final Airport airport_be = new Airport("Berlin", address1, "5678");
+        FrontDeskOfficer frontDeskOfficer = new FrontDeskOfficer("John", address1, "example@email.com", "0151238967");
+
+        frontDeskOfficer.createItinerary(airport_fr, airport_be, new Date());
+        assertFalse(frontDeskOfficer.getAllItineraries().isEmpty());
+        assertEquals(1, frontDeskOfficer.getAllItineraries().size());
+        assertTrue(frontDeskOfficer.getAllItineraries().stream().filter(itinerary ->  itinerary.getStart_airport().equals(airport_fr) &&
+                itinerary.getFinal_airport().equals(airport_be)).findAny().isPresent());
+    }
+}