email notification

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

@@ -0,0 +1,24 @@
+package hs.fulda.de.ci.exam.project;
+
+public class EmailNotification extends Notification {
+    String email;
+    String content;
+    public EmailNotification(String email, String content) {
+        super();
+        this.email = email;
+        this.content = content;
+    }
+
+    @Override
+    public boolean sendNotification() {
+        if (isValidEmail(email)) {
+            System.out.println("Email is sent to " + email);
+            return true;
+        }
+        return false;
+    }
+
+    private boolean isValidEmail(String email) {
+        return true;
+    }
+}

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

@@ -60,4 +60,12 @@ public class FlightReservation {
         credit_card_payment.status = Completed;
         status = Confirmed;
     }
+
+    public boolean notifyUser(String type, String email, String content) {
+        Notification notification = null;
+        switch (type) {
+            case "email": notification = new EmailNotification(email, content);
+        }
+        return notification.sendNotification();
+    }
 }

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

@@ -0,0 +1,5 @@
+package hs.fulda.de.ci.exam.project;
+
+public abstract class Notification {
+    public abstract boolean sendNotification();
+}

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

@@ -0,0 +1,16 @@
+package hs.fulda.de.ci.exam.project;
+
+import org.junit.Test;
+
+import static hs.fulda.de.ci.exam.project.ReservationStatus.Confirmed;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class NotificationTest {
+    @Test
+    public void emailNotificationShouldBeSentWhenFlighReservationCompleted() {
+        FlightReservation reservation = new FlightReservation();
+        reservation.setStatus(Confirmed);
+        boolean result = reservation.notifyUser("email", "test@gmail.com","Reservation is Confirmed!");
+        assertTrue(result);
+    }
+}