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