### Question:
MongoDbAuthorityConverter implements HydratingModelConverter<Authority, MongoDbAuthority> { @Override public Class<Authority> getSourceType() { return Authority.class; }  @Override void hydrate(MongoDbAuthority dehydrated); @Override Class<Authority> getSourceType(); @Override MongoDbAuthority convert(Authority source);  }### Answer:
@Test public void getSourceType_Valid(){ assertNotNull(authorityConverter.getSourceType()); }