public void testFileCorruptionOPOIFS()
{
// create test InputStream
byte[] testData = { (byte)1, (byte)2, (byte)3 };
InputStream testInput = new ByteArrayInputStream(testData);
// detect header
InputStream in1 = new PushbackInputStream(testInput, 10);
Assert.IsFalse(OPOIFSFileSystem.HasPOIFSHeader(in1));
// check if InputStream is still intact
byte[] test = new byte[3];
in1.Read(test);
Assert.IsTrue(Arrays.Equals(testData, test));
Assert.AreEqual(-1, in1.Read());
}
public void setup()
{
_rawSample = new PushbackInputStream(HttpSample.ChunkedResponse());
var buf = new byte[74];
_rawSample.Read(buf, 0, 74); // skip HTTP headers
_subject = new HttpChunkedStreamWrapper(_rawSample, TimeSpan.FromSeconds(1));
}
public void TestFileCorruption()
{
// create test InputStream
byte[] testData = { (byte)1, (byte)2, (byte)3 };
ByteArrayInputStream testInput = new ByteArrayInputStream(testData);
// detect header
InputStream in1 = new PushbackInputStream(testInput, 10);
Assert.IsFalse(DocumentFactoryHelper.HasOOXMLHeader(in1));
//noinspection deprecation
Assert.IsFalse(POIXMLDocument.HasOOXMLHeader(in1));
// check if InputStream is still intact
byte[] test = new byte[3];
Assert.AreEqual(3, in1.Read(test));
Assert.IsTrue(Arrays.Equals(testData, test));
Assert.AreEqual(-1, in1.Read());
}
public void Read_ReadsFromBufferFirst()
{
const int Position = 128;
var callsToRead = 0;
var mock = new FakeStream
{
OnCanReadGet = () => true,
OnCanSeekGet = () => false,
OnPositionGet = () => Position,
OnReadByteArrayInt32Int32 = (_, __, ___) =>
{
callsToRead++;
return(0);
}
};
using (var pushbackStream = new PushbackInputStream(mock))
{
var pushbackBytes = new byte[] { 1, 2, 4, 8 };
pushbackStream.Write(pushbackBytes, 0, pushbackBytes.Length);
// Read as many bytes as we wrote to the pusback buffer
// The stream wrapper should not touch the underlying stream
var result = new byte[pushbackBytes.Length];
var bytesRead = pushbackStream.Read(result, 0, result.Length);
Assert.Equal(0, callsToRead);
Assert.Equal(pushbackBytes.Length, bytesRead);
Assert.Equal(pushbackBytes, result);
// The pushback buffer should be empty at this point;
// a subsequent read should hit the underlying stream
pushbackStream.Read(result, 0, result.Length);
Assert.Equal(1, callsToRead);
}
}
/// <exception cref="System.IO.IOException"></exception>
public DeflateInputStream(InputStream wrapped)
{
byte[] peeked = new byte[6];
PushbackInputStream pushback = new PushbackInputStream(wrapped, peeked.Length);
int headerLength = pushback.Read(peeked);
if (headerLength == -1)
{
throw new IOException("Unable to read the response");
}
byte[] dummy = new byte[1];
Inflater inf = new Inflater();
try
{
int n;
while ((n = inf.Inflate(dummy)) == 0)
{
if (inf.IsFinished)
{
throw new IOException("Unable to read the response");
}
if (inf.NeedsDictionary())
{
break;
}
if (inf.IsNeedingInput)
{
inf.SetInput(peeked);
}
}
if (n == -1)
{
throw new IOException("Unable to read the response");
}
pushback.Unread(peeked, 0, headerLength);
sourceStream = new DeflateInputStream.DeflateStream(pushback, new Inflater());
}
catch (SharpZipBaseException)
{
pushback.Unread(peeked, 0, headerLength);
sourceStream = new DeflateInputStream.DeflateStream(pushback, new Inflater(true));
}
finally
{
inf.Finish();
}
}
public void Read_ReadsFromBufferFirst()
{
const int Position = 128;
var callsToRead = 0;
var mock = new FakeStream
{
OnCanReadGet = () => true,
OnCanSeekGet = () => false,
OnPositionGet = () => Position,
OnReadByteArrayInt32Int32 = (_, __, ___) =>
{
callsToRead++;
return 0;
}
};
using (var pushbackStream = new PushbackInputStream(mock))
{
var pushbackBytes = new byte[] { 1, 2, 4, 8 };
pushbackStream.Write(pushbackBytes, 0, pushbackBytes.Length);
// Read as many bytes as we wrote to the pusback buffer
// The stream wrapper should not touch the underlying stream
var result = new byte[pushbackBytes.Length];
var bytesRead = pushbackStream.Read(result, 0, result.Length);
Assert.Equal(0, callsToRead);
Assert.Equal(pushbackBytes.Length, bytesRead);
Assert.Equal(pushbackBytes, result);
// The pushback buffer should be empty at this point;
// a subsequent read should hit the underlying stream
pushbackStream.Read(result, 0, result.Length);
Assert.Equal(1, callsToRead);
}
}
public void reading_is_passed_to_underlying_stream_and_correct_length_returned()
{
_subject.Read(_buffer, 0, 100);
_underlying.Received().Read(_buffer, 0, 100);
Assert.That(_subject.Position, Is.EqualTo(99));
}