@Test public void testLikes() throws DataNotFoundException { postingService.writePosting("first_blog", testMixedPosting1); postingService.writePosting("first_blog", testTextPosting1); postingService.writePosting("first_blog", testSinglePosting1); postingService.writePosting("first_blog", testMixedPosting2); postingService.addLikes(testMember2, "first_blog", 1); postingService.addLikes(testMember2, "first_blog", 2); postingService.addLikes(testMember2, "first_blog", 3); postingService.addLikes(testMember2, "first_blog", 4); Posting posting = postingService.findPosting("first_blog", 1); assertEquals(posting.getLikes(), 1); Posting[] likePostings = postingService.getLikedPostings(testMember2); assertEquals(4, likePostings.length); postingService.cancelLikes(testMember2, "first_blog", 1); postingService.cancelLikes(testMember2, "first_blog", 2); postingService.cancelLikes(testMember2, "first_blog", 3); postingService.cancelLikes(testMember2, "first_blog", 4); posting = postingService.findPosting("first_blog", 1); assertEquals(posting.getLikes(), 0); }