// Test Customer constructor, getNumberofAccounts, and varargs
@Test
public void testThreeAcounts() {
Customer oscar = new Customer("Oscar", new Savings(), new Checking(), new MaxiSavings());
assertEquals(3, oscar.getNumberOfAccounts());
}
// Test Customer constructor, getNumberofAccounts, and varargs
@Test
public void testOneAccount() {
Customer oscar = new Customer("Oscar", new Checking());
assertEquals(1, oscar.getNumberOfAccounts());
}