assertThat(converter.convert(category), is(nullValue()));
}
@Test
public void testConvertGroupToJpaGroup() {
JpaGroup jpaGroup = converter.convert(group);
assertThat(jpaGroup, is(not(sameInstance(group))));
assertThat(jpaGroup, is(instanceOf(JpaGroup.class)));
assertEquals(description, jpaGroup.getDescription());
assertEquals(title, jpaGroup.getTitle());
assertEquals(ownerId, jpaGroup.getOwnerId());
assertEquals(members.size(), jpaGroup.getMemberIds().size());
}