source: class BusinessTest {
  
       Business testBusiness;
       EmployeeBean bob;
       CustomerBean sarah;
  
      @Test
      public void testAddEmployee() {
  
target:         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();
      }
  
  }