getFlights with two flights

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

@@ -1,13 +1,14 @@
 package hs.fulda.de.ci.exam.project;
 
-import java.util.LinkedList;
+import java.util.HashSet;
+import java.util.Set;
 
 public class Airport {
 
     protected String name;
     public Address address;
     protected String code;
-    public LinkedList<Flight> flights = new LinkedList<>();
+    public HashSet<Flight> flights = new HashSet<>();
 
     public Airport(String name, Address address, String code) {
         this.name = name;
@@ -27,7 +28,7 @@ public class Airport {
         return this.address;
     }
 
-    public LinkedList<Flight> getFlights() {
+    public HashSet<Flight> getFlights() {
         return this.flights;
     }
 

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

@@ -0,0 +1,17 @@
+package hs.fulda.de.ci.exam.project;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class AddressTest {
+
+    @BeforeEach
+    void setUp() {
+    }
+
+    @Test
+    void testToString() {
+    }
+}

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

@@ -1,9 +1,11 @@
 package hs.fulda.de.ci.exam.project;
 
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.junit.jupiter.MockitoExtension;
 
+import java.util.HashSet;
 import java.util.LinkedList;
 
 import static org.assertj.core.api.Assertions.*;
@@ -11,6 +13,7 @@ import static org.assertj.core.api.Assertions.*;
 @ExtendWith(MockitoExtension.class)
 public class AirportTest {
 
+
     Address address_fr = new Address("Frankfurt str", "Frankfurt", "Hessen", "63023", "Germany");
     Airport airport_fr = new Airport("Fraport", address_fr, "1234");
 
@@ -39,11 +42,26 @@ public class AirportTest {
 
     @Test
     void test_getFlights() {
-        LinkedList<Flight> flist = new LinkedList<>();
+        HashSet<Flight> flist = new HashSet<>();
+        flist.add(flight1);
+
+        airport_fr.flights.add(flight1);
+
+        assertThat(airport_fr.getFlights()).describedAs("get all flights of the airport").isEqualTo(flist);
+    }
+
+    @Test
+    void test_getFlights_wiht_2_flights() {
+        HashSet<Flight> flist = new HashSet<>();
         flist.add(flight1);
+        flist.add(flight2);
 
         airport_fr.flights.add(flight1);
+        airport_fr.flights.add(flight1);
+        airport_fr.flights.add(flight2);
 
         assertThat(airport_fr.getFlights()).describedAs("get all flights of the airport").isEqualTo(flist);
+
+
     }
 }