/// <summary>
/// Parses the given bytes using ReadRawVarint32() and ReadRawVarint64()
/// </summary>
private static void AssertReadVarint(byte[] data, ulong value)
{
CodedInputStream input = CodedInputStream.CreateInstance(data);
Assert.AreEqual((uint)value, input.ReadRawVarint32());
input = CodedInputStream.CreateInstance(data);
Assert.AreEqual(value, input.ReadRawVarint64());
Assert.IsTrue(input.IsAtEnd);
// Try different block sizes.
for (int bufferSize = 1; bufferSize <= 16; bufferSize *= 2)
{
input = CodedInputStream.CreateInstance(new SmallBlockInputStream(data, bufferSize));
Assert.AreEqual((uint)value, input.ReadRawVarint32());
input = CodedInputStream.CreateInstance(new SmallBlockInputStream(data, bufferSize));
Assert.AreEqual(value, input.ReadRawVarint64());
Assert.IsTrue(input.IsAtEnd);
}
// Try reading directly from a MemoryStream. We want to verify that it
// doesn't read past the end of the input, so write an extra byte - this
// lets us test the position at the end.
MemoryStream memoryStream = new MemoryStream();
memoryStream.Write(data, 0, data.Length);
memoryStream.WriteByte(0);
memoryStream.Position = 0;
Assert.AreEqual((uint)value, CodedInputStream.ReadRawVarint32(memoryStream));
Assert.AreEqual(data.Length, memoryStream.Position);
}
public void TestDefaultValue()
{
// WriteTagAndValue ignores default values
var stream = new MemoryStream();
var codedOutput = CodedOutputStream.CreateInstance(stream);
codec.WriteTagAndValue(codedOutput, codec.DefaultValue);
codedOutput.Flush();
Assert.AreEqual(0, stream.Position);
Assert.AreEqual(0, codec.CalculateSizeWithTag(codec.DefaultValue));
if (typeof(T).IsValueType)
{
Assert.AreEqual(default(T), codec.DefaultValue);
}
// The plain ValueWriter/ValueReader delegates don't.
if (codec.DefaultValue != null) // This part isn't appropriate for message types.
{
codedOutput = CodedOutputStream.CreateInstance(stream);
codec.ValueWriter(codedOutput, codec.DefaultValue);
codedOutput.Flush();
Assert.AreNotEqual(0, stream.Position);
Assert.AreEqual(stream.Position, codec.ValueSizeCalculator(codec.DefaultValue));
stream.Position = 0;
var codedInput = CodedInputStream.CreateInstance(stream);
Assert.AreEqual(codec.DefaultValue, codec.ValueReader(codedInput));
}
}
public void TestNegativeEnum()
{
byte[] bytes = { 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01 };
CodedInputStream input = CodedInputStream.CreateInstance(bytes);
Assert.AreEqual((int)SampleEnum.NegativeValue, input.ReadEnum());
Assert.IsTrue(input.IsAtEnd);
}
public static void MergeFrom(this IMessage message, Stream input)
{
Preconditions.CheckNotNull(message, "message");
Preconditions.CheckNotNull(input, "input");
CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
message.MergeFrom(codedInput);
codedInput.CheckLastTagWas(0);
}
public static void MergeFrom(this IMessage message, byte[] data)
{
Preconditions.CheckNotNull(message, "message");
Preconditions.CheckNotNull(data, "data");
CodedInputStream input = CodedInputStream.CreateInstance(data);
message.MergeFrom(input);
input.CheckLastTagWas(0);
}
public void TestRoundTripRaw()
{
var stream = new MemoryStream();
var codedOutput = CodedOutputStream.CreateInstance(stream);
codec.ValueWriter(codedOutput, sampleValue);
codedOutput.Flush();
stream.Position = 0;
var codedInput = CodedInputStream.CreateInstance(stream);
Assert.AreEqual(sampleValue, codec.ValueReader(codedInput));
Assert.IsTrue(codedInput.IsAtEnd);
}
public void TestRoundTripWithTag()
{
var stream = new MemoryStream();
var codedOutput = CodedOutputStream.CreateInstance(stream);
codec.WriteTagAndValue(codedOutput, sampleValue);
codedOutput.Flush();
stream.Position = 0;
var codedInput = CodedInputStream.CreateInstance(stream);
codedInput.AssertNextTag(codec.Tag);
Assert.AreEqual(sampleValue, codec.Read(codedInput));
Assert.IsTrue(codedInput.IsAtEnd);
}
/// <summary>
/// Parses the given bytes using ReadRawVarint32() and ReadRawVarint64() and
/// expects them to fail with an InvalidProtocolBufferException whose
/// description matches the given one.
/// </summary>
private static void AssertReadVarintFailure(InvalidProtocolBufferException expected, byte[] data)
{
CodedInputStream input = CodedInputStream.CreateInstance(data);
var exception = Assert.Throws <InvalidProtocolBufferException>(() => input.ReadRawVarint32());
Assert.AreEqual(expected.Message, exception.Message);
input = CodedInputStream.CreateInstance(data);
exception = Assert.Throws <InvalidProtocolBufferException>(() => input.ReadRawVarint64());
Assert.AreEqual(expected.Message, exception.Message);
// Make sure we get the same error when reading directly from a Stream.
exception = Assert.Throws <InvalidProtocolBufferException>(() => CodedInputStream.ReadRawVarint32(new MemoryStream(data)));
Assert.AreEqual(expected.Message, exception.Message);
}
public void ResetSizeCounter()
{
CodedInputStream input = CodedInputStream.CreateInstance(
new SmallBlockInputStream(new byte[256], 8));
input.SetSizeLimit(16);
input.ReadRawBytes(16);
Assert.Throws <InvalidProtocolBufferException>(() => input.ReadRawByte());
input.ResetSizeCounter();
input.ReadRawByte(); // No exception thrown.
Assert.Throws <InvalidProtocolBufferException>(() => input.ReadRawBytes(16));
}
/// <summary>
/// Parses the given bytes using ReadRawLittleEndian64() and checks
/// that the result matches the given value.
/// </summary>
private static void AssertReadLittleEndian64(byte[] data, ulong value)
{
CodedInputStream input = CodedInputStream.CreateInstance(data);
Assert.AreEqual(value, input.ReadRawLittleEndian64());
Assert.IsTrue(input.IsAtEnd);
// Try different block sizes.
for (int blockSize = 1; blockSize <= 16; blockSize *= 2)
{
input = CodedInputStream.CreateInstance(
new SmallBlockInputStream(data, blockSize));
Assert.AreEqual(value, input.ReadRawLittleEndian64());
Assert.IsTrue(input.IsAtEnd);
}
}
public void ReadMaliciouslyLargeBlob()
{
MemoryStream ms = new MemoryStream();
CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
uint tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
output.WriteRawVarint32(tag);
output.WriteRawVarint32(0x7FFFFFFF);
output.WriteRawBytes(new byte[32]); // Pad with a few random bytes.
output.Flush();
ms.Position = 0;
CodedInputStream input = CodedInputStream.CreateInstance(ms);
uint testtag;
Assert.IsTrue(input.ReadTag(out testtag));
Assert.AreEqual(tag, testtag);
// TODO(jonskeet): Should this be ArgumentNullException instead?
Assert.Throws <InvalidProtocolBufferException>(() => input.ReadBytes());
}
public void ReadInvalidUtf8()
{
MemoryStream ms = new MemoryStream();
CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
uint tag = WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited);
output.WriteRawVarint32(tag);
output.WriteRawVarint32(1);
output.WriteRawBytes(new byte[] { 0x80 });
output.Flush();
ms.Position = 0;
CodedInputStream input = CodedInputStream.CreateInstance(ms);
uint actualTag;
Assert.IsTrue(input.ReadTag(out actualTag));
Assert.AreEqual(tag, actualTag);
string text = input.ReadString();
Assert.AreEqual('\ufffd', text[0]);
}
public void TestSlowPathAvoidance()
{
using (var ms = new MemoryStream())
{
CodedOutputStream output = CodedOutputStream.CreateInstance(ms);
output.WriteTag(1, WireFormat.WireType.LengthDelimited);
output.WriteBytes(ByteString.CopyFrom(new byte[100]));
output.WriteTag(2, WireFormat.WireType.LengthDelimited);
output.WriteBytes(ByteString.CopyFrom(new byte[100]));
output.Flush();
ms.Position = 0;
CodedInputStream input = CodedInputStream.CreateInstance(ms, new byte[ms.Length / 2]);
uint tag;
Assert.IsTrue(input.ReadTag(out tag));
Assert.AreEqual(1, WireFormat.GetTagFieldNumber(tag));
Assert.AreEqual(100, input.ReadBytes().Length);
Assert.IsTrue(input.ReadTag(out tag));
Assert.AreEqual(2, WireFormat.GetTagFieldNumber(tag));
Assert.AreEqual(100, input.ReadBytes().Length);
}
}
public void TestCodedInputOutputPosition()
{
byte[] content = new byte[110];
for (int i = 0; i < content.Length; i++)
content[i] = (byte)i;
byte[] child = new byte[120];
{
MemoryStream ms = new MemoryStream(child);
CodedOutputStream cout = CodedOutputStream.CreateInstance(ms, 20);
// Field 11: numeric value: 500
cout.WriteTag(11, WireFormat.WireType.Varint);
Assert.AreEqual(1, cout.Position);
cout.WriteInt32(500);
Assert.AreEqual(3, cout.Position);
//Field 12: length delimited 120 bytes
cout.WriteTag(12, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytes(ByteString.CopyFrom(content));
Assert.AreEqual(115, cout.Position);
// Field 13: fixed numeric value: 501
cout.WriteTag(13, WireFormat.WireType.Fixed32);
Assert.AreEqual(116, cout.Position);
cout.WriteSFixed32(501);
Assert.AreEqual(120, cout.Position);
cout.Flush();
}
byte[] bytes = new byte[130];
{
CodedOutputStream cout = CodedOutputStream.CreateInstance(bytes);
// Field 1: numeric value: 500
cout.WriteTag(1, WireFormat.WireType.Varint);
Assert.AreEqual(1, cout.Position);
cout.WriteInt32(500);
Assert.AreEqual(3, cout.Position);
//Field 2: length delimited 120 bytes
cout.WriteTag(2, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytes(ByteString.CopyFrom(child));
Assert.AreEqual(125, cout.Position);
// Field 3: fixed numeric value: 500
cout.WriteTag(3, WireFormat.WireType.Fixed32);
Assert.AreEqual(126, cout.Position);
cout.WriteSFixed32(501);
Assert.AreEqual(130, cout.Position);
cout.Flush();
}
// Now test Input stream:
{
CodedInputStream cin = CodedInputStream.CreateInstance(new MemoryStream(bytes), new byte[50]);
uint tag;
Assert.AreEqual(0, cin.Position);
// Field 1:
Assert.IsTrue(cin.ReadTag(out tag) && tag >> 3 == 1);
Assert.AreEqual(1, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(3, cin.Position);
//Field 2:
Assert.IsTrue(cin.ReadTag(out tag) && tag >> 3 == 2);
Assert.AreEqual(4, cin.Position);
int childlen = cin.ReadLength();
Assert.AreEqual(120, childlen);
Assert.AreEqual(5, cin.Position);
int oldlimit = cin.PushLimit((int)childlen);
Assert.AreEqual(5, cin.Position);
// Now we are reading child message
{
// Field 11: numeric value: 500
Assert.IsTrue(cin.ReadTag(out tag) && tag >> 3 == 11);
Assert.AreEqual(6, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(8, cin.Position);
//Field 12: length delimited 120 bytes
Assert.IsTrue(cin.ReadTag(out tag) && tag >> 3 == 12);
Assert.AreEqual(9, cin.Position);
ByteString bstr = cin.ReadBytes();
Assert.AreEqual(110, bstr.Length);
Assert.AreEqual((byte) 109, bstr[109]);
Assert.AreEqual(120, cin.Position);
// Field 13: fixed numeric value: 501
Assert.IsTrue(cin.ReadTag(out tag) && tag >> 3 == 13);
// ROK - Previously broken here, this returned 126 failing to account for bufferSizeAfterLimit
Assert.AreEqual(121, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(125, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
cin.PopLimit(oldlimit);
Assert.AreEqual(125, cin.Position);
// Field 3: fixed numeric value: 501
Assert.IsTrue(cin.ReadTag(out tag) && tag >> 3 == 3);
Assert.AreEqual(126, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(130, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
}
/// <summary>
/// Creates a CodedInputStream from this ByteString's data.
/// </summary>
public CodedInputStream CreateCodedInput()
{
// We trust CodedInputStream not to reveal the provided byte array or modify it
return(CodedInputStream.CreateInstance(bytes));
}