public void ReadInt32Test()
{
byte[] input = new byte[4] {
0xff, 0xFF, 0xff, 0xFF
};
WangStream wangStream = new WangStream(input);
Assert.IsFalse(wangStream.IsEnd());
Assert.AreEqual(-1, wangStream.ReadInt32());
Assert.AreEqual(0, wangStream.AvailableBytes());
Assert.IsTrue(wangStream.IsEnd());
Assert.AreEqual(0, wangStream.AvailableBytes());
}