@Test
// selects 3 Individuals, test whether it hits inputIndividual[2] whose probability is very low 1/15 th
public void testSelectWinners1() throws Exception {

    this.operator.setIndividualsPerPopulation(3);
    double[] accumulatedProbabilities = this.operator.makeAccumulatedProbabilities(this.inputIndividuals);
    List<Individual> winners = this.operator.selectWinners(this.inputIndividuals, accumulatedProbabilities);
    assertEquals(3, winners.size());
    assertSame(this.inputIndividuals[0], winners.get(0));
    assertSame(this.inputIndividuals[2], winners.get(1));
    assertSame(this.inputIndividuals[3], winners.get(2));
}