public void TestConstructor()
{
var str = new CMemoryStream();
Assert.AreEqual <long>(0, str.Length, "Length of default stream should be zero");
Assert.AreEqual <long>(0, str.Position, "Position of default stream should be zero");
}
public void TestGetBytes()
{
var mem = new CMemoryStream(m_buf2, 2, 5);
var newbuf = mem.GetBytes();
Assert.AreEqual(0, MemCmp(newbuf, 0, m_buf2, 2, 5), "Bytes extracted from m_bu2 are wrong");
newbuf[2]++; // relies on the fact that m_buf2[2] is not 255!
Assert.AreEqual(1,
MemCmp(newbuf, 0, m_buf2, 2, 5),
"Bytes changed in newbuf should make the two arrays different.");
}
public void TestReadOnlyMemStream()
{
var mem = new CMemoryStream(m_buf2, 0, m_buf2.Length, true)
{
Position = 0
};
var reader = new BinaryReader(mem);
var x = reader.ReadInt32();
mem.Seek(-2, SeekOrigin.Current);
Assert.AreEqual(true, mem.CanRead, "Should be CanRead");
Assert.AreEqual(false, mem.CanWrite, "Should not be CanWrite");
Assert.AreEqual(true, mem.CanSeek, "Should be CanSeek");
try
{
mem.SetLength(4);
Assert.Fail("Should not be able to set the length of a read-only stream.");
}
catch (InvalidOperationException)
{
// all is well
}
try
{
mem.WriteByte(0);
Assert.Fail("Should not be able to write to a readonly stream");
}
catch (InvalidOperationException)
{
// all is well
}
try
{
mem.SetBuffer(m_buf1);
Assert.Fail("Should not be able to set the underlying buffer in a readonly CMemoryStream.");
}
catch (InvalidOperationException)
{
// all is well
}
}
public void TestChangingBuffer()
{
var buffer = new byte[BUFFER_SIZE];
m_memStream = new CMemoryStream(m_buf1);
m_memStream.Read(buffer, 0, m_buf1.Length);
Assert.AreEqual <long>(m_buf1.Length, m_memStream.Position, "Position");
Assert.AreEqual <long>(m_buf1.Length, m_memStream.Length, "Length");
Assert.AreEqual <long>(0, m_memStream.BytesAvailable, "Bytes Available");
Assert.AreEqual(0, MemCmp(m_buf1, 0, buffer, 0, m_buf1.Length), "Should have read buf1");
m_memStream.SetBuffer(m_buf2);
m_memStream.Read(buffer, 0, m_buf2.Length);
Assert.AreEqual <long>(m_buf2.Length, m_memStream.Position, "Position2");
Assert.AreEqual <long>(m_buf2.Length, m_memStream.Length, "Length2");
Assert.AreEqual <long>(0, m_memStream.BytesAvailable, "Bytes Available2");
Assert.AreEqual(0, MemCmp(m_buf2, 0, buffer, 0, m_buf2.Length), "Should have read buf2");
}
public void SetMemStream()
{
SetBuffer(BUFFER_SIZE);
m_memStream = new CMemoryStream(m_buffer);
}
