@Test public void testLinkFromHighway() { Assert.assertEquals(HighwayTag.PRIMARY_LINK, HighwayTag.PRIMARY.getLinkFromHighway().get()); Assert.assertEquals(HighwayTag.SECONDARY_LINK, HighwayTag.SECONDARY.getLinkFromHighway().get()); Assert.assertEquals(HighwayTag.TERTIARY_LINK, HighwayTag.TERTIARY.getLinkFromHighway().get()); Assert.assertEquals(HighwayTag.TRUNK_LINK, HighwayTag.TRUNK.getLinkFromHighway().get()); Assert.assertEquals(HighwayTag.MOTORWAY_LINK, HighwayTag.MOTORWAY.getLinkFromHighway().get()); Assert.assertEquals(Optional.empty(), HighwayTag.BRIDLEWAY.getLinkFromHighway()); }