public void InitializeWithMemoryStream()
{
var s = new CircularMemoryWriterStream(_properties, new MemoryStream(new byte[10]));
Assert.AreEqual(0, s.Length);
Assert.AreEqual(10, s.Capacity);
Assert.AreEqual(0, s.Position);
}
public void WriteAboveCapacity()
{
var b = new byte[10];
var m = new MemoryStream(b);
var s = new CircularMemoryWriterStream(_properties, m);
s.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, 0, 15);
Assert.AreEqual(10, s.Length);
Assert.AreEqual(10, s.Position);
CollectionAssert.AreEqual(new byte[] { 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }, b);
}
public void ReadAboveCapacity()
{
var s = new CircularMemoryWriterStream(_properties, 10);
s.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
s.Position = 0;
var readBuffer = new byte[15];
var bytesRead = s.Read(readBuffer, 0, 15);
Assert.AreEqual(10, s.Position);
Assert.AreEqual(10, bytesRead);
}
public void WriteBelowCapacityAtPositionWithWrap()
{
var b = new byte[10];
var m = new MemoryStream(b);
var s = new CircularMemoryWriterStream(_properties, m);
s.Position = 9;
s.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5);
Assert.AreEqual(10, s.Length);
Assert.AreEqual(10, s.Position);
CollectionAssert.AreEqual(new byte[] { 2, 3, 4, 5, 0, 0, 0, 0, 0, 1 }, b);
}
public void ReadOnlyAsMuchAsWritten()
{
var s = new CircularMemoryWriterStream(_properties, 10);
s.Write(new byte[] { 1 }, 0, 1);
s.Position = 0;
var readBuffer = new byte[5];
var bytesRead = s.Read(readBuffer, 0, 5);
// make sure that the stream does not read more data as has been written,
// i.e. in this case there is only one byte to read
Assert.AreEqual(1, bytesRead);
}
public void SimpleWriteRead()
{
var b = new byte[10];
var m = new MemoryStream(b);
var s = new CircularMemoryWriterStream(_properties, m);
s.Write(new byte[] { 1 }, 0, 1);
s.Position = 0;
var readBuffer = new byte[1];
s.Read(readBuffer, 0, 1);
CollectionAssert.AreEqual(new byte[] { 1 }, readBuffer);
}
public void ReadBelowCapacity()
{
var s = new CircularMemoryWriterStream(_properties, 10);
s.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
s.Position = 0;
var readBuffer = new byte[5];
var bytesRead = s.Read(readBuffer, 0, 5);
Assert.AreEqual(5, s.Position);
Assert.AreEqual(5, bytesRead);
CollectionAssert.AreEqual(new byte[] { 1, 2, 3, 4, 5 }, readBuffer);
}
public void ReadAboveCapacityAtPositionWithWrap()
{
var b = new byte[10];
var m = new MemoryStream(b);
var s = new CircularMemoryWriterStream(_properties, m);
s.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, 0, 9);
s.Write(new byte[] { 10, 11 }, 0, 2);
s.Position = 0;
var readBuffer = new byte[1];
s.Read(readBuffer, 0, 1);
CollectionAssert.AreEqual(new byte[] { 2 }, readBuffer);
}
public void ReadAboveCapacityAtPositionWithoutWrap()
{
var s = new CircularMemoryWriterStream(_properties, 10);
s.Write(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, 0, 10);
s.Position = 0;
s.Position = 9;
var readBuffer = new byte[5];
var bytesRead = s.Read(readBuffer, 0, 5);
Assert.AreEqual(10, s.Position);
Assert.AreEqual(1, bytesRead);
CollectionAssert.AreEqual(new byte[] { 10, 0, 0, 0, 0 }, readBuffer);
}
public void InitializeWithMemoryStreamWithoutFixedCapacity()
{
var s = new CircularMemoryWriterStream(_properties, new MemoryStream());
}
