public void CashNormalStrategyTestMethod()
{
double money = 999;
CashContext context = new CashContext(new CashNormal());
Assert.AreEqual(money, context.GetResule(money));
}
public void CashRebateStrategyTestMethod()
{
double money = 999;
double rebate = 0.95d;
CashContext context = new CashContext(new CashRebate(rebate));
Assert.AreEqual(money * rebate, context.GetResule(money));
}
public void CashReturnStrategyTestMethod()
{
double money = 999;
double condition = 100d;
double _return = 10;
CashContext context = new CashContext(new CashReturn(condition, _return));
double expected = money < condition ? money : money - Math.Floor(money / condition) * _return;
Assert.AreEqual(expected, context.GetResule(money));
}