public void TestCombineSeek()
{
var mem1 = "hello".ToStream();
var mem2 = "world".ToStream();
var stream = new CombineStream(mem1, mem2);
var buffer = new byte[5];
Assert.AreEqual(5, stream.Read(buffer, 0, 5));
Assert.AreEqual("hello", Str.Encoding.GetString(buffer));
Assert.AreEqual(5, stream.Read(buffer, 0, 5));
Assert.AreEqual("world", Str.Encoding.GetString(buffer));
stream.Seek(5, SeekOrigin.Begin);
Assert.AreEqual(5, stream.Read(buffer, 0, 5));
Assert.AreEqual("world", Str.Encoding.GetString(buffer));
stream.Seek(4, SeekOrigin.Begin);
Assert.AreEqual(5, stream.Read(buffer, 0, 5));
Assert.AreEqual("oworl", Str.Encoding.GetString(buffer));
stream.Seek(6, SeekOrigin.Begin);
Assert.AreEqual(4, stream.Read(buffer, 0, 5));
Assert.AreEqual("orld", Str.Encoding.GetString(buffer, 0, 4));
stream.Seek(10, SeekOrigin.Begin);
Assert.AreEqual(0, stream.Read(buffer, 0, 5));
Assert.AreEqual(0, stream.Read(buffer, 0, 5));
}
public void TestCombineSeek2()
{
var mem1 = "hello".ToStream();
var mem2 = "world".ToStream();
var stream = new CombineStream(mem1, mem2);
var buffer = new byte[5];
Assert.AreEqual(5, stream.Read(buffer, 0, 5));
Assert.AreEqual("hello", Str.Encoding.GetString(buffer));
stream.Seek(2, SeekOrigin.Current);
Assert.AreEqual(3, stream.Read(buffer, 0, 5));
Assert.AreEqual("rld", Str.Encoding.GetString(buffer, 0, 3));
stream.Seek(-3, SeekOrigin.End);
Assert.AreEqual(3, stream.Read(buffer, 0, 5));
Assert.AreEqual("rld", Str.Encoding.GetString(buffer, 0, 3));
}
public void TestUnknowSeek()
{
var mem1 = "hello".ToStream();
var mem2 = "world".ToStream();
var stream = new CombineStream(mem1, mem2);
stream.Seek(11, (SeekOrigin)100);
}
public void TestSeekOutOfRange()
{
var mem1 = "hello".ToStream();
var mem2 = "world".ToStream();
var stream = new CombineStream(mem1, mem2);
stream.Seek(11, SeekOrigin.Begin);
}
public void TestCannotSeekStreamSetPosition()
{
var stream = new CombineStream("hello".ToStream(), new CannotSeekStream());
stream.Seek(0, SeekOrigin.Begin);
}