refactor

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

@@ -1,7 +1,6 @@
 package hs.fulda.de.ci.exam.project;
 
 import java.util.HashSet;
-import java.util.Set;
 
 public class Airport {
 

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

@@ -1,13 +1,9 @@
 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.*;
 
 @ExtendWith(MockitoExtension.class)
@@ -44,9 +40,7 @@ public class AirportTest {
     void test_getFlights() {
         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);
     }
 
@@ -55,13 +49,8 @@ public class AirportTest {
         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);
-
-
     }
 }