@Test
public void testEarningsSumOverYear() {

    UkelonnServiceProvider ukelonn = getUkelonnServiceSingleton();
    List<SumYear> statistics = ukelonn.earningsSumOverYear("jad");
    assertThat(statistics.size()).isPositive();
    SumYear firstYear = statistics.get(0);
    assertEquals(1250.0, firstYear.getSum(), 0.0);
    assertEquals(2016, firstYear.getYear());
}