@Test
public void testGetAllCustomerPhoneNumbers() {

    testBusiness.customerPhoneBook.put("Azikiwe, Sarah", sarah.getPhoneNumber());
    testBusiness.customerPhoneBook.put("Adams, Joe", joe.getPhoneNumber());
    testBusiness.customerPhoneBook.put("Hernandez, Alma", alma.getPhoneNumber());
    testBusiness.customerPhoneBook.put("Gustavson, Hannah", hannah.getPhoneNumber());
    String phoneBook = testBusiness.getAllCustomerPhoneNumbers();
    String expected = "Adams, Joe - (208)888-1900; Azikiwe, Sarah - (208)555-1818; Gustavson, Hannah - (208)888-1599; Hernandez, Alma - (208)888-1598; ";
    assertEquals(expected, phoneBook);
    testBusiness.customerPhoneBook.clear();
}