refactor airlinetest

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

@@ -11,9 +11,13 @@ import static org.mockito.Mockito.mock;
 
 @RunWith(MockitoJUnitRunner.class)
 public class AirlineTest {
+
+    Airline airline = new Airline("Pegasus", "1234");
+    Flight flight1 = mock(Flight.class);
+    HashSet<Flight> flights = new HashSet<>();
+
     @Test
     void testConstructorSetsNameParameterCorrectly() {
-        Airline airline = new Airline("Pegasus", "1234");
         assertThat(airline.getName())
                 .describedAs("name of airline")
                 .isEqualTo("Pegasus");
@@ -21,7 +25,6 @@ public class AirlineTest {
 
     @Test
     void testConstructorSetsCodeParameterCorrectly() {
-        Airline airline = new Airline("Pegasus", "1234");
         assertThat(airline.getCode())
                 .describedAs("code of airline")
                 .isEqualTo("1234");
@@ -29,8 +32,6 @@ public class AirlineTest {
 
     @Test
     void getFlightsReturnsEmptyListOfFlights() {
-        Airline airline = new Airline("Pegasus", "1234");
-        HashSet<Flight> flights = new HashSet<>();
         assertThat(airline.getFlights())
                 .describedAs("flights of airline")
                 .isEqualTo(flights);
@@ -38,9 +39,6 @@ public class AirlineTest {
 
     @Test
     void addFlightAddsFlightToListOfFlights() {
-        Airline airline = new Airline("Pegasus", "1234");
-        Flight flight1 = mock(Flight.class);
-        HashSet<Flight> flights = new HashSet<>();
         flights.add(flight1);
 
         airline.addFlight(flight1);