should not make reservation when passenger birthdate is null

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

@@ -91,6 +91,7 @@ public class Itinerary {
     public void validatePassengerDetails(Passenger passenger){
         passenger.validateName();
         passenger.validatePassportNumber();
+        passenger.validateDate();
     }
 
 

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

@@ -32,5 +32,9 @@ public class Passenger {
         }
     }
 
-
+    public void validateDate() {
+        if(dateOfBirth.equals(null)) {
+            throw new RuntimeException("Birthdate cannot be null");
+        }
+    }
 }

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

@@ -59,7 +59,7 @@ public class ItineraryTest {
 
     @Test
     @DisplayName("Should Not Make Reservation when Passenger name is null")
-    public void shouldThrowRuntimeExceptionWhenNameIsNull(){
+    public void shouldThrowRuntimeExceptionWhenNameIsNull() {
         String msg = null;
         try {
             item1.makeReservation(new Passenger("", "Ab", new Date()));
@@ -72,7 +72,7 @@ public class ItineraryTest {
     @DisplayName("Should Not Make Reservation when Passenger passport number is invalid")
     @ParameterizedTest
     @MethodSource("passportNumberList")
-    public void shouldThrowRuntimeExceptionWhenPhoneNumberIsNull(String passportNumber){
+    public void shouldThrowRuntimeExceptionWhenPhoneNumberIsNull(String passportNumber) {
         String msg = null;
         try {
             item1.makeReservation(new Passenger("John", passportNumber, new Date()));
@@ -85,4 +85,12 @@ public class ItineraryTest {
     private static List<String> passportNumberList() {
         return Arrays.asList("A2", "000000", "AB231837%8");
     }
+
+    @Test
+    @DisplayName("Should Not Make Reservation when Passenger Birthdate is null")
+    public void shouldThrowRuntimeExceptionWhenDateIsNull() {
+        assertThrows(RuntimeException.class, () -> {
+            item1.makeReservation(new Passenger("John", "AB127389", null));
+        });
+    }
 }