public void TestBasics()
{
using (SegmentedMemoryStream ms = new SegmentedMemoryStream())
{
Assert.IsTrue(ms.CanRead);
Assert.IsTrue(ms.CanWrite);
Assert.IsTrue(ms.CanSeek);
ms.Flush();
}
}
public void TestSetLength()
{
using (SegmentedMemoryStream ms = new SegmentedMemoryStream())
{
Assert.AreEqual(0L, ms.Length);
Assert.AreEqual(0L, ms.Position);
ms.SetLength(10);
Assert.AreEqual(0L, ms.Position);
Assert.AreEqual(10L, ms.Length);
Assert.AreEqual(10L, ms.Seek(0, System.IO.SeekOrigin.End));
ms.SetLength(100);
Assert.AreEqual(10L, ms.Position);
Assert.AreEqual(100L, ms.Length);
Assert.AreEqual(100L, ms.Seek(0, System.IO.SeekOrigin.End));
ms.SetLength(1);
Assert.AreEqual(100L, ms.Position);
Assert.AreEqual(1L, ms.Length);
Assert.AreEqual(1L, ms.Seek(0, System.IO.SeekOrigin.End));
}
}
public void TestSeek()
{
using (SegmentedMemoryStream ms = new SegmentedMemoryStream())
{
Assert.AreEqual(0L, ms.Length);
Assert.AreEqual(0L, ms.Position);
Assert.AreEqual(0L, ms.Seek(0, System.IO.SeekOrigin.Begin));
Assert.AreEqual(0L, ms.Seek(0, System.IO.SeekOrigin.Current));
Assert.AreEqual(0L, ms.Seek(0, System.IO.SeekOrigin.End));
ms.Position = 42L;
Assert.AreEqual(42L, ms.Length);
Assert.AreEqual(42L, ms.Position);
Assert.AreEqual(42L, ms.Seek(42, System.IO.SeekOrigin.Begin));
Assert.AreEqual(42L, ms.Seek(0, System.IO.SeekOrigin.Current));
Assert.AreEqual(42L, ms.Seek(0, System.IO.SeekOrigin.End));
ms.Position = 0;
Assert.AreEqual(0L, ms.Position);
Assert.AreEqual(0L, ms.Seek(0, System.IO.SeekOrigin.Begin));
Assert.AreEqual(0L, ms.Seek(0, System.IO.SeekOrigin.Current));
Assert.AreEqual(0L, ms.Seek(-42, System.IO.SeekOrigin.End));
}
}
public void TestBadLength()
{
SegmentedMemoryStream ms = new SegmentedMemoryStream();
ms.SetLength(-1);
}
public void TestSeekError()
{
SegmentedMemoryStream ms = new SegmentedMemoryStream();
ms.Position = -1;
}
public void TestDisposed()
{
SegmentedMemoryStream ms = new SegmentedMemoryStream();
ms.Dispose();
ms.Position = 5;
}
public void TestReadWrite()
{
using (SegmentedMemoryStream ms = new SegmentedMemoryStream(5))
{
Write(ms, "12345");
Write(ms, "abcd");
Write(ms, "ABCDEF");
Write(ms, "12345");
Write(ms, "");
ms.Flush();
Assert.AreEqual(20L, ms.Length);
Assert.AreEqual(20L, ms.Position);
ms.Position = 0;
Assert.AreEqual("12345abcdABCDEF12345", Read(ms, (int)ms.Length));
ms.Position = 5;
Assert.AreEqual("a", Read(ms, 1));
Assert.AreEqual("bcd", Read(ms, 3));
Assert.AreEqual("ABCDEF", Read(ms, 6));
Assert.AreEqual("12345", Read(ms, 5));
Assert.AreEqual(0, ms.Read(new byte[10], 0, 10));
}
}
/// <summary> Creates a 'clone' of the stream sharing the same contents </summary>
protected SegmentedMemoryStream(SegmentedMemoryStream from)
{
_contents = from._contents;
_position = 0;
}
/// <summary> Creates a 'clone' of the stream sharing the same contents </summary>
protected SegmentedMemoryStream(SegmentedMemoryStream from)
{
_contents = from._contents;
_position = 0;
}