#1321 Added UML diagram

transaction-script/src/test/java/com/ashishtrivedi16/transactionscript/HotelDaoImplTest.java

@@ -261,7 +261,6 @@ public class HotelDaoImplTest {
     }
   }
 
-
   /**
    * An arbitrary number which does not correspond to an active Room id.
    *

transaction-script/src/test/java/com/ashishtrivedi16/transactionscript/HotelTest.java

@@ -63,7 +63,7 @@ public class HotelTest {
   @Test()
   public void bookingRoomWithInvalidIdShouldRaiseException() {
     assertThrows(Exception.class, () -> {
-      hotel.bookRoom(999);
+      hotel.bookRoom(getNonExistingRoomId());
     });
   }
 
@@ -91,7 +91,7 @@ public class HotelTest {
   @Test
   public void cancelRoomBookingWithInvalidIdShouldRaiseException() {
     assertThrows(Exception.class, () -> {
-      hotel.cancelRoomBooking(999);
+      hotel.cancelRoomBooking(getNonExistingRoomId());
     });
   }
 
@@ -140,4 +140,13 @@ public class HotelTest {
     final var room6 = new Room(6, "Double", 80, false);
     return List.of(room1, room2, room3, room4, room5, room6);
   }
+
+  /**
+   * An arbitrary number which does not correspond to an active Room id.
+   *
+   * @return an int of a room id which doesn't exist
+   */
+  private int getNonExistingRoomId() {
+    return 999;
+  }
 }