### Question:
EmployeeService { public List<Employee> allInFRIR() { return this.employeeRepository.findAll(EmployeeSpecifications.workInDepartmentFRIR); } EmployeeService(EmployeeRepository employeeRepository); List<Employee> allOlderThen20(); List<Employee> allInFRIR(); List<Employee> allOlderThen20InFRIR(); List<Employee> byAgeAndMaybeOneOfDepartmentNames(EmployeeFilter employeeFilter);  }### Answer:
@Test public void test_getAllInFrir() { var inFrir = employeeService.allInFRIR(); Assert.assertTrue(inFrir.stream().allMatch(emp -> emp.getDepartment().getName().equals("FRIR"))); Assert.assertEquals(2, inFrir.size()); }