@Test
public void testFindByEmployee() {

    setupSomeEmployeesAndMonthlyTaxes();
    //ACT
    List<MonthlyTaxForEmployee> monthlyTaxForEmployees = monthlyTaxForEmployeeRepository.findByEmployee(ionel);
    //ASSERT
    assertThat(monthlyTaxForEmployees).containsOnly(ionelJanuary, ionelFebruary);
}