public void TestDecodeDictionaryEmpty()
{
byte[] encoded = Encoding.ASCII.GetBytes("depostscript");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDictionary, d.Next());
Assert.AreEqual(Bdecoder.NodeType.EndDictionary, d.Next());
Assert.AreEqual(2, d.NextOffset);
}
public void TestDecodeDictionary()
{
byte[] encoded = Encoding.ASCII.GetBytes("d3:foo3:barepostscript");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDictionary, d.Next());
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("foo"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("bar"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.EndDictionary, d.Next());
Assert.AreEqual(12, d.NextOffset);
}
public void TestDecodeBytestringPrematureEof2()
{
byte[] encoded = Utils.Bs("12");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.Eof, d.Next());
}
public void TestDecodeBytestringSizeGarbage()
{
byte[] encoded = Utils.Bs("1%ab#2:interference");
Bdecoder d = new Bdecoder(encoded);
d.Next();
}
public void TestDecodeBytestring()
{
byte[] encoded = Utils.Bs("5:magicgarbage");
byte[] expected = Utils.Bs("magic");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(expected, d.ByteStringValue);
Assert.AreEqual(7, d.NextOffset);
}
public void TestDecodeDictionaryHalfOpen()
{
byte[] encoded = Encoding.ASCII.GetBytes("d5:sushii85e");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDictionary, d.Next());
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("sushi"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.Integer, d.Next());
Assert.AreEqual(Bdecoder.NodeType.Eof, d.Next());
}
public void TestDecodeMetadataEmpty()
{
byte[] encoded = Encoding.ASCII.GetBytes("me");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartMetadata, d.Next());
Assert.AreEqual(Bdecoder.NodeType.EndMetadata, d.Next());
Assert.AreEqual(2, d.NextOffset);
}
public void TestDecodeMetadata()
{
byte[] encoded = Encoding.ASCII.GetBytes("m4:data4:metae");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartMetadata, d.Next());
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("data"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("meta"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.EndMetadata, d.Next());
Assert.AreEqual(14, d.NextOffset);
}
public void TestDecodeIntegerHalfopen()
{
byte[] encoded = Utils.Bs("i123");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.Eof, d.Next());
}
public void TestDecodeIntegerGarbage()
{
byte[] encoded = Utils.Bs("isawthesign");
Bdecoder d = new Bdecoder(encoded);
d.Next();
}
public void TestDecodeInteger()
{
byte[] encoded = Utils.Bs("i427effffff");
int expected = 427;
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.Integer, d.Next());
Assert.AreEqual(expected, d.IntegerValue);
Assert.AreEqual(5, d.NextOffset);
}
public void TestDecodeDStringEmpty()
{
byte[] encoded = Encoding.ASCII.GetBytes("S0:e");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDString, d.Next());
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs(""), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.EndDString, d.Next());
Assert.AreEqual(4, d.NextOffset);
}
public void TestDecodeDRecordEmpty()
{
byte[] encoded = Encoding.ASCII.GetBytes("Re");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDRecord, d.Next());
Assert.AreEqual(Bdecoder.NodeType.EndDRecord, d.Next());
Assert.AreEqual(2, d.NextOffset);
}
public void TestDecodeDRecord()
{
byte[] encoded = Encoding.ASCII.GetBytes("R4:safe6:secureeoffthe");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDRecord, d.Next());
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("safe"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.ByteString, d.Next());
Utils.AssertBytewiseIdentical(Utils.Bs("secure"), d.ByteStringValue);
Assert.AreEqual(Bdecoder.NodeType.EndDRecord, d.Next());
Assert.AreEqual(16, d.NextOffset);
}
public void TestDecodeDNumber()
{
byte[] encoded = Encoding.ASCII.GetBytes("Nn123.45eecomplex");
Bdecoder d = new Bdecoder(encoded);
Assert.AreEqual(Bdecoder.NodeType.StartDNumber, d.Next());
Assert.AreEqual(Bdecoder.NodeType.Number, d.Next());
Assert.AreEqual(123.45m, d.NumberValue);
Assert.AreEqual(Bdecoder.NodeType.EndDNumber, d.Next());
Assert.AreEqual(10, d.NextOffset);
}
/// <see cref="IMessageFormat.Decode"/>
public Message Decode(byte[] payload, out int bytesConsumed)
{
Bdecoder decoder = new Bdecoder(payload);
Stack<DecodingFrame> frames = new Stack<DecodingFrame>();
while (true)
{
var nodeType = decoder.Next();
DecodingFrame top = frames.Count > 0 ? frames.Peek() : null;
switch (nodeType)
{
case Bdecoder.NodeType.ByteString:
top.InsertBytestring(decoder.ByteStringValue);
break;
case Bdecoder.NodeType.EndDictionary:
case Bdecoder.NodeType.EndDNumber:
case Bdecoder.NodeType.EndDRecord:
case Bdecoder.NodeType.EndDString:
DecodingFrame child = frames.Pop();
DecodingFrame parent = frames.Count > 0 ? frames.Peek() : null;
if (parent == null)
{
Debug.Assert(child is MessageToplevelFrame);
bytesConsumed = decoder.NextOffset;
return (Message)child.Realize();
}
else
{
parent.InsertObject((DObject)child.Realize());
}
break;
case Bdecoder.NodeType.EndList:
Debug.Fail("whaaaaaaaaat");
break;
case Bdecoder.NodeType.Integer:
top.InsertInteger(decoder.IntegerValue);
break;
case Bdecoder.NodeType.Number:
top.InsertNumber(decoder.NumberValue);
break;
case Bdecoder.NodeType.StartDictionary:
if (frames.Count == 0)
{
frames.Push(new MessageToplevelFrame());
}
else
{
Debug.Assert(false);
//frames.Push(new DRecordFrame());
}
break;
case Bdecoder.NodeType.StartList:
Debug.Fail("oh nooooo");
break;
case Bdecoder.NodeType.StartDNumber:
frames.Push(new DNumberFrame());
break;
case Bdecoder.NodeType.StartDRecord:
frames.Push(new DRecordFrame());
break;
case Bdecoder.NodeType.StartDString:
frames.Push(new DStringFrame());
break;
case Bdecoder.NodeType.Eof:
// expected a node here, but didn't get one. return "premature eof".
bytesConsumed = 0;
return null;
}
}
}