get gate number of flight instance

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

@@ -17,4 +17,9 @@ class FlightInstanceTest {
         assertThat(fInstance1.getDepartureTime()).describedAs("get departure time of flight isntance").isEqualTo(Time.valueOf("13:45:40"));
     }
 
+    @Test
+    void getGate(){
+        assertThat(fInstance1.getGate()).describedAs("get departure time of flight isntance").isEqualTo("G15");
+    }
+
 }