@Test
 @UsingDataSet({"profile.yml"})
 @ShouldMatchDataSet(
     value = {"profile.yml"},
     excludeColumns = {"id"})
 public void findByUsername_ExistingProfile_Found() throws Exception {
   Profile profile = profileRepository.findByUsername("test_user");
   Assert.assertNotNull(profile);
 }
 @Test
 @UsingDataSet({"profile.yml"})
 public void findByUsername_InvalidUsername_NoProfileFound() throws Exception {
   Profile profile = profileRepository.findByUsername("invalid_user");
   Assert.assertNull(profile);
 }