public void NewSequenct()
{
// 首先测试默认的构造函数. 结果应当等价于 001。
Assert.AreEqual("001", sequence.ToString());
// 再测试 几种不同的构造函数的方式，能否得出相同的序列号.
sequence = new MySequence('0', 1);
Assert.AreEqual("001", sequence.ToString());
}
public void MinusMinus()
{
// Z99-- = Z98
sequence = new MySequence("Z99");
sequence--;
Assert.AreEqual("Z98", sequence.ToString());
// P00-- = N99 ( 因为字母 O 被排除掉了)
sequence = new MySequence("P00");
sequence--;
Assert.AreEqual("N99", sequence.ToString());
// 001-- = 000
sequence = new MySequence("001");
sequence--;
Assert.AreEqual("000", sequence.ToString());
}
public void Plus()
{
// 001 + 100 = 101
sequence = new MySequence("001");
sequence = sequence + 100;
Assert.AreEqual("101", sequence.ToString());
// A01 + 200 = C01
sequence = new MySequence("A01");
sequence = sequence + 200;
Assert.AreEqual("C01", sequence.ToString());
// N01 + 123 = P24
sequence = new MySequence("N01");
sequence = sequence + 123;
Assert.AreEqual("P24", sequence.ToString());
}
public void PlusPlus()
{
// 001++ = 002
sequence++;
// 001++ 后，结果为 002
Assert.AreEqual("002", sequence.ToString());
// 测试 999++ = A00
sequence = new MySequence("999");
sequence++;
Assert.AreEqual("A00", sequence.ToString());
// 测试 N99++ = P00 ( 因为字母 O 被排除掉了)
sequence = new MySequence("N99");
sequence++;
Assert.AreEqual("P00", sequence.ToString());
}
