@Test
public void testGetPreviousFeature() throws Exception {
Lane p = mock(Lane.class);
when(p.getID()).thenReturn(new ID("previous lane"));
link.in = p;
assertEquals(new ID("previous lane"), link.getPreviousFeature().getID());
}
@Test
public void testGetNextFeature() throws Exception {
Lane n = mock(Lane.class);
when(n.getID()).thenReturn(new ID("next lane"));
link.out = n;
assertEquals(new ID("next lane"), link.getNextFeature().getID());
}