public void TestSeek()
{
var storage = new MemoryStorage();
using (var stream = new StorageStream(storage))
{
stream.Write(Encoding.Default.GetBytes("123456789"), 0, 9);
}
using (var readStream = new StorageStream(storage, false))
{
var data = new byte[16];
Assert.AreEqual(9, readStream.Read(data, 0, data.Length));
Assert.AreEqual("123456789", Encoding.Default.GetString(data, 0, 9));
Assert.AreEqual(0, readStream.Read(data, 0, data.Length));
readStream.Seek(1, SeekOrigin.Begin);
Assert.AreEqual(8, readStream.Read(data, 0, data.Length));
Assert.AreEqual("23456789", Encoding.Default.GetString(data, 0, 8));
readStream.Seek(-1, SeekOrigin.Current);
Assert.AreEqual(1, readStream.Read(data, 0, data.Length));
Assert.AreEqual("9", Encoding.Default.GetString(data, 0, 1));
readStream.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(9, readStream.Read(data, 0, data.Length));
Assert.AreEqual("123456789", Encoding.Default.GetString(data, 0, 9));
readStream.Seek(-1, SeekOrigin.End);
Assert.AreEqual(1, readStream.Read(data, 0, data.Length));
Assert.AreEqual("9", Encoding.Default.GetString(data, 0, 1));
}
}
public void TestSeekLargeLength()
{
var storage = new MemoryStorage();
using (var stream = new StorageStream(storage))
{
stream.Write(Encoding.Default.GetBytes("123456789"), 0, 9);
}
using (var readStream = new StorageStream(storage, false))
{
readStream.Seek(1, SeekOrigin.End);
}
}
public void TestSeekSmallZero()
{
var storage = new MemoryStorage();
using (var stream = new StorageStream(storage))
{
stream.Write(Encoding.Default.GetBytes("123456789"), 0, 9);
}
using (var readStream = new StorageStream(storage, false))
{
readStream.Seek(-1, SeekOrigin.Begin);
}
}