- (void)testStatement_Regular {
    Movie *matrixMovie1 = [[Movie alloc] initWithTitle:@"黑客帝國1"
                                             priceCode:MovieEnumRegular];
    Demand *aDemand1 = [[Demand alloc] initWithMovie:matrixMovie1
                                          timePeriod:TimePeriodEnumWorkDaytime];

// 顧客租賃一部：
Customer *aCustomer = [[Customer alloc] initCustomerWithName:@"溪石"];
[aCustomer addDemand:aDemand1];

XCTAssertTrue([@"溪石的點播清單\\\\n"
@"\\\\t黑客帝國1\\\\t2 元\\\\n"
@"費用總計 2 元\\\\n"
@"獲得積分 1"
isEqualToString:[aCustomer statement]],
@"測試點播一部普通電影");

}