@Parameterized.Parameters(name = "{0}") // {0} = toString() of object
public static java.util.Collection<Object[]> generateData() {
ArrayList<Person> persons = new ArrayList<>();
persons.add(new Person("aaa", new BigDecimal(1.1), "soccer", "jumping"));
persons.add(new Person("bbbb", new BigDecimal(2.56), "running"));
persons.add(new Person("cccc", new BigDecimal(2.91)));
persons.add(new Person("ddddd", new BigDecimal(8.39), "flying", "running"));
return Arrays.asList(new Object[][]{
{new OriginalTeam(persons)},
{new team.LambdaTeam(persons)},
});