@Test
public void testAddEmployee() {

    testBusiness.addEmployee(bob);
    int numEmployees = testBusiness.employees.size();
    assertEquals(1, numEmployees);
    testBusiness.addEmployee(jose);
    testBusiness.addEmployee(sven);
    testBusiness.addEmployee(ingabrit);
    numEmployees = testBusiness.employees.size();
    assertEquals(4, numEmployees);
    testBusiness.addEmployee(null);
    numEmployees = testBusiness.employees.size();
    assertEquals(4, numEmployees);
    testBusiness.addEmployee(noLastName);
    numEmployees = testBusiness.employees.size();
    assertEquals(4, numEmployees);
    testBusiness.addEmployee(noFirstName);
    numEmployees = testBusiness.employees.size();
    assertEquals(4, numEmployees);
    testBusiness.employees.clear();
}