public void NonSeekableMemoryStream()
{
"> NonSeekableMemoryStream:".AsInfo();
var bytes = new byte[1000];
byte b = 0;
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] = b++;
}
const int SKIP = 100;
const int TAKE = 20;
const int READ = 77;
var readBuff = new byte[READ];
using (var ms = new NonSeekableMemoryStream(bytes))
using (var rs = new StreamReductor(ms, SKIP, TAKE))
{
rs.Read(readBuff, 0, READ);
for (int i = 0; i < TAKE; i++)
{
if (readBuff[i] != i)
{
Passed = false;
break;
}
}
for (int i = 0; i < TAKE; i++)
{
if (readBuff[TAKE + i] != TAKE + SKIP + i)
{
Passed = false;
break;
}
}
if (Passed.HasValue && !Passed.Value)
{
FailureMessage = "Normal Reduction on seek-able stream failed to read the correct bytes";
}
else
{
Passed = true;
"[OK] NonSeekableMemoryStream".AsSuccess();
}
}
}
public void SkipKey()
{
var version2before = MyMessageV2.TestInstance();
//Write
var buffer = MyMessageV2.SerializeToBytes(version2before);
//Read by older version, lots of values will be skipped
var noseek = new NonSeekableMemoryStream(buffer);
var ps = new PositionStream(noseek);
var version1 = MyMessageV1NoPreserve.Deserialize(ps);
Assert.AreEqual(version2before.FieldA, version1.FieldA);
}
public void OutOfBounds()
{
"> OutOfBounds:".AsInfo();
"Will attempt to take more data than there is after the reduction. The Cut will happen on a TAKE.".AsInnerInfo();
var bytes = new byte[100];
byte b = 0;
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] = b++;
}
const int SKIP = 20;
const int TAKE = 25;
const int READ = 100; // More than there is after the reduction
var readBuff = new byte[READ];
using (var ms = new NonSeekableMemoryStream(bytes))
using (var rs = new StreamReductor(ms, SKIP, TAKE))
{
rs.Read(readBuff, 0, READ);
var nonZero = 0;
for (int i = 1; i < readBuff.Length; i++)
{
if (readBuff[i] != 0)
{
nonZero++;
}
}
if (nonZero != 59)
{
FailureMessage = "OutOfBounds read more or less data than it should.";
Passed = false;
}
if (!Passed.HasValue)
{
Passed = true;
}
if (Passed.Value)
{
"[OK] OutOfBounds".AsSuccess();
}
}
}
public void SkipKeyFail()
{
MyMessageV2 version2before = MyMessageV2.TestInstance();
//Write
var buffer = MyMessageV2.SerializeToBytes(version2before);
//Read by older version, lots of values will be skipped
var noseek = new NonSeekableMemoryStream(buffer);
//This should trigger a NotSupportedException
var version1 = MyMessageV1NoPreserve.Deserialize(noseek);
Assert.AreEqual(version2before.FieldA, version1.FieldA);
}
