public static void TestUnexpectedBlockType()
{
byte[] buffer = new byte[2000];
using (V2AxCryptDataStream axCryptDataStreamWriter = V2AxCryptDataStream.Create(new MemoryStream(buffer)))
{
AxCrypt1Guid.Write(axCryptDataStreamWriter.Chained);
new PreambleHeaderBlock().Write(axCryptDataStreamWriter.Chained);
new DataHeaderBlock().Write(axCryptDataStreamWriter.Chained);
byte[] bytes = Encoding.UTF8.GetBytes("This is a short text.");
axCryptDataStreamWriter.Write(bytes, 0, bytes.Length);
axCryptDataStreamWriter.Flush();
new DataHeaderBlock().Write(axCryptDataStreamWriter.Chained);
}
using (AxCryptReader reader = new TestingAxCryptReader(new LookAheadStream(new MemoryStream(buffer))))
{
while (reader.Read())
{
;
}
reader.SetStartOfData();
using (TextReader textReader = new StreamReader(V2AxCryptDataStream.Create(reader, Stream.Null), Encoding.UTF8))
{
string text = null;
Assert.Throws <FileFormatException>(() => text = textReader.ReadToEnd());
Assert.That(text, Is.Null);
}
}
}
public static void TestLongerReadWrite()
{
byte[] bytesToWrite = new FakeRandomGenerator().Generate(V2AxCryptDataStream.WriteChunkSize + V2AxCryptDataStream.WriteChunkSize / 2);
byte[] buffer = new byte[bytesToWrite.Length + 2000];
using (V2AxCryptDataStream axCryptDataStreamWriter = V2AxCryptDataStream.Create(new MemoryStream(buffer)))
{
AxCrypt1Guid.Write(axCryptDataStreamWriter.Chained);
new PreambleHeaderBlock().Write(axCryptDataStreamWriter.Chained);
new DataHeaderBlock().Write(axCryptDataStreamWriter.Chained);
axCryptDataStreamWriter.Write(bytesToWrite, 0, bytesToWrite.Length);
axCryptDataStreamWriter.Flush();
new V2HmacHeaderBlock().Write(axCryptDataStreamWriter.Chained);
}
using (AxCryptReader reader = new TestingAxCryptReader(new LookAheadStream(new MemoryStream(buffer))))
{
while (reader.Read())
{
;
}
reader.SetStartOfData();
using (V2AxCryptDataStream axCryptDataStreamReader = V2AxCryptDataStream.Create(reader, Stream.Null))
{
byte[] bytesRead = new byte[bytesToWrite.Length];
int offset = 0;
int count;
do
{
count = axCryptDataStreamReader.Read(bytesRead, offset, 100);
offset += count;
} while (count > 0);
Assert.That(bytesRead, Is.EquivalentTo(bytesToWrite));
}
}
}