/// <summary>
/// Writes the given value using WriteRawVarint32() and WriteRawVarint64() and
/// checks that the result matches the given bytes
/// </summary>
private static void AssertWriteVarint(byte[] data, ulong value)
{
// Only do 32-bit write if the value fits in 32 bits.
if ((value >> 32) == 0)
{
MemoryStream rawOutput = new MemoryStream();
CodedOutputStream output = CodedOutputStream.CreateInstance(rawOutput);
output.WriteRawVarint32((uint)value);
output.Flush();
Assert.AreEqual(data, rawOutput.ToArray());
// Also try computing size.
Assert.AreEqual(data.Length, CodedOutputStream.ComputeRawVarint32Size((uint)value));
}
{
MemoryStream rawOutput = new MemoryStream();
CodedOutputStream output = CodedOutputStream.CreateInstance(rawOutput);
output.WriteRawVarint64(value);
output.Flush();
Assert.AreEqual(data, rawOutput.ToArray());
// Also try computing size.
Assert.AreEqual(data.Length, CodedOutputStream.ComputeRawVarint64Size(value));
}
// Try different buffer sizes.
for (int bufferSize = 1; bufferSize <= 16; bufferSize *= 2)
{
// Only do 32-bit write if the value fits in 32 bits.
if ((value >> 32) == 0)
{
MemoryStream rawOutput = new MemoryStream();
CodedOutputStream output =
CodedOutputStream.CreateInstance(rawOutput, bufferSize);
output.WriteRawVarint32((uint)value);
output.Flush();
Assert.AreEqual(data, rawOutput.ToArray());
}
{
MemoryStream rawOutput = new MemoryStream();
CodedOutputStream output = CodedOutputStream.CreateInstance(rawOutput, bufferSize);
output.WriteRawVarint64(value);
output.Flush();
Assert.AreEqual(data, rawOutput.ToArray());
}
}
}
public void WriteWholeMessage()
{
TestAllTypes message = TestUtil.GetAllSet();
byte[] rawBytes = message.ToByteArray();
TestUtil.AssertEqualBytes(TestUtil.GoldenMessage.ToByteArray(), rawBytes);
// Try different block sizes.
for (int blockSize = 1; blockSize < 256; blockSize *= 2)
{
MemoryStream rawOutput = new MemoryStream();
CodedOutputStream output =
CodedOutputStream.CreateInstance(rawOutput, blockSize);
message.WriteTo(output);
output.Flush();
TestUtil.AssertEqualBytes(rawBytes, rawOutput.ToArray());
}
}
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);
Assert.AreEqual(tag, input.ReadTag());
string text = input.ReadString();
Assert.AreEqual('\ufffd', text[0]);
}
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);
Assert.AreEqual(tag, input.ReadTag());
try {
input.ReadBytes();
Assert.Fail("Should have thrown an exception!");
} catch (InvalidProtocolBufferException) {
// success.
}
}
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.WriteInt32NoTag(500);
Assert.AreEqual(3, cout.Position);
//Field 12: length delimited 120 bytes
cout.WriteTag(12, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytesNoTag(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.WriteSFixed32NoTag(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.WriteInt32NoTag(500);
Assert.AreEqual(3, cout.Position);
//Field 2: length delimited 120 bytes
cout.WriteTag(2, WireFormat.WireType.LengthDelimited);
Assert.AreEqual(4, cout.Position);
cout.WriteBytesNoTag(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.WriteSFixed32NoTag(501);
Assert.AreEqual(130, cout.Position);
cout.Flush();
}
//Now test Input stream:
{
CodedInputStream cin = CodedInputStream.CreateInstance(new MemoryStream(bytes), new byte[50]);
uint tag;
int intValue = 0;
string ignore;
Assert.AreEqual(0, cin.Position);
// Field 1:
Assert.IsTrue(cin.ReadTag(out tag, out ignore) && tag >> 3 == 1);
Assert.AreEqual(1, cin.Position);
Assert.IsTrue(cin.ReadInt32(ref intValue) && intValue == 500);
Assert.AreEqual(3, cin.Position);
//Field 2:
Assert.IsTrue(cin.ReadTag(out tag, out ignore) && tag >> 3 == 2);
Assert.AreEqual(4, cin.Position);
uint childlen = cin.ReadRawVarint32();
Assert.AreEqual(120u, 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, out ignore) && tag >> 3 == 11);
Assert.AreEqual(6, cin.Position);
Assert.IsTrue(cin.ReadInt32(ref intValue) && intValue == 500);
Assert.AreEqual(8, cin.Position);
//Field 12: length delimited 120 bytes
Assert.IsTrue(cin.ReadTag(out tag, out ignore) && tag >> 3 == 12);
Assert.AreEqual(9, cin.Position);
ByteString bstr = null;
Assert.IsTrue(cin.ReadBytes(ref bstr) && bstr.Length == 110 && bstr.ToByteArray()[109] == 109);
Assert.AreEqual(120, cin.Position);
// Field 13: fixed numeric value: 501
Assert.IsTrue(cin.ReadTag(out tag, out ignore) && tag >> 3 == 13);
// ROK - Previously broken here, this returned 126 failing to account for bufferSizeAfterLimit
Assert.AreEqual(121, cin.Position);
Assert.IsTrue(cin.ReadSFixed32(ref intValue) && intValue == 501);
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, out ignore) && tag >> 3 == 3);
Assert.AreEqual(126, cin.Position);
Assert.IsTrue(cin.ReadSFixed32(ref intValue) && intValue == 501);
Assert.AreEqual(130, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
}
public void Flush()
{
codedOutput.Flush();
}