| public WriteTag ( int fieldNumber, WireFormat type ) : void | ||
| fieldNumber | int | The number of the field to write the tag for |
| type | WireFormat | The wire format type of the tag to write |
| return | void | |
public void RogueEndGroupTag()
{
// If we have an end-group tag without a leading start-group tag, generated
// code will just call SkipLastField... so that should fail.
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(1, WireFormat.WireType.EndGroup);
output.Flush();
stream.Position = 0;
var input = new CodedInputStream(stream);
Assert.AreEqual(WireFormat.MakeTag(1, WireFormat.WireType.EndGroup), input.ReadTag());
Assert.Throws <InvalidProtocolBufferException>(input.SkipLastField);
}
public void IgnoreUnknownFields_RealDataStillRead()
{
var message = SampleMessages.CreateFullTestAllTypes();
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
var unusedFieldNumber = 23456;
Assert.IsFalse(TestAllTypes.Descriptor.Fields.InDeclarationOrder().Select(x => x.FieldNumber).Contains(unusedFieldNumber));
output.WriteTag(unusedFieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteString("ignore me");
message.WriteTo(output);
output.Flush();
stream.Position = 0;
var parsed = TestAllTypes.Parser.ParseFrom(stream);
Assert.AreEqual(message, parsed);
}
public void CodedInputStream_LimitReachedRightAfterTag()
{
MemoryStream ms = new MemoryStream();
var cos = new CodedOutputStream(ms);
cos.WriteTag(11, WireFormat.WireType.Varint);
Assert.AreEqual(1, cos.Position);
cos.WriteString("some extra padding"); // ensure is currentLimit distinct from the end of the buffer.
cos.Flush();
var cis = new CodedInputStream(ms.ToArray());
cis.PushLimit(1); // make sure we reach the limit right after reading the tag.
// we still must read the tag correctly, even though the tag is at the very end of our limited input
// (which is a corner case and will most likely result in an error when trying to read value of the field
// described by this tag, but it would be a logical error not to read the tag that's actually present).
// See https://github.com/protocolbuffers/protobuf/pull/7289
cis.AssertNextTag(WireFormat.MakeTag(11, WireFormat.WireType.Varint));
}
public void DiscardUnknownFields_RealDataStillRead()
{
var message = SampleMessages.CreateFullTestAllTypes();
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
var unusedFieldNumber = 23456;
Assert.IsFalse(TestAllTypes.Descriptor.Fields.InDeclarationOrder().Select(x => x.FieldNumber).Contains(unusedFieldNumber));
output.WriteTag(unusedFieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteString("ignore me");
message.WriteTo(output);
output.Flush();
MessageParsingHelpers.AssertReadingMessage(
TestAllTypes.Parser,
stream.ToArray(),
parsed =>
{
// TODO(jieluo): Add test back when DiscardUnknownFields API is supported.
// Assert.AreEqual(message, parsed);
});
}
/// <summary>
/// Serializes the field, including the field number, and writes it to
/// <paramref name="output"/>
/// </summary>
/// <param name="fieldNumber">The unknown field number.</param>
/// <param name="output">The CodedOutputStream to write to.</param>
internal void WriteTo(int fieldNumber, CodedOutputStream output)
{
if (varintList != null)
{
foreach (ulong value in varintList)
{
output.WriteTag(fieldNumber, WireFormat.WireType.Varint);
output.WriteUInt64(value);
}
}
if (fixed32List != null)
{
foreach (uint value in fixed32List)
{
output.WriteTag(fieldNumber, WireFormat.WireType.Fixed32);
output.WriteFixed32(value);
}
}
if (fixed64List != null)
{
foreach (ulong value in fixed64List)
{
output.WriteTag(fieldNumber, WireFormat.WireType.Fixed64);
output.WriteFixed64(value);
}
}
if (lengthDelimitedList != null)
{
foreach (ByteString value in lengthDelimitedList)
{
output.WriteTag(fieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteBytes(value);
}
}
if (groupList != null)
{
foreach (UnknownFieldSet value in groupList)
{
output.WriteTag(fieldNumber, WireFormat.WireType.StartGroup);
value.WriteTo(output);
output.WriteTag(fieldNumber, WireFormat.WireType.EndGroup);
}
}
}
public void ExtraEndGroupThrows()
{
var message = SampleMessages.CreateFullTestAllTypes();
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(TestAllTypes.SingleFixed32FieldNumber, WireFormat.WireType.Fixed32);
output.WriteFixed32(123);
output.WriteTag(100, WireFormat.WireType.EndGroup);
output.Flush();
stream.Position = 0;
Assert.Throws<InvalidProtocolBufferException>(() => TestAllTypes.Parser.ParseFrom(stream));
}
public void MapWithOnlyKey_MessageValue()
{
// Hand-craft the stream to contain a single entry with just a key.
var memoryStream = new MemoryStream();
var output = new CodedOutputStream(memoryStream);
output.WriteTag(TestMap.MapInt32ForeignMessageFieldNumber, WireFormat.WireType.LengthDelimited);
int key = 10;
output.WriteLength(1 + CodedOutputStream.ComputeInt32Size(key));
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key);
output.Flush();
var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
Assert.AreEqual(new ForeignMessage(), parsed.MapInt32ForeignMessage[key]);
}
public void EndOfStreamReachedWhileSkippingGroup()
{
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(1, WireFormat.WireType.StartGroup);
output.WriteTag(2, WireFormat.WireType.StartGroup);
output.WriteTag(2, WireFormat.WireType.EndGroup);
output.Flush();
stream.Position = 0;
// Now act like a generated client
var input = new CodedInputStream(stream);
input.ReadTag();
Assert.Throws<InvalidProtocolBufferException>(input.SkipLastField);
}
private byte[] StringToByteBuffer(string str)
{
int t = CodedOutputStream.ComputeTagSize(9);
int s = CodedOutputStream.ComputeStringSize(str);
s += t;
byte[] bytes = new byte[s];
CodedOutputStream cos = new CodedOutputStream(bytes);
cos.WriteTag((9 << 3) + 2);
cos.WriteString(str);
cos.Flush();
return bytes;
}
public void DuplicateKeys_LastEntryWins()
{
var memoryStream = new MemoryStream();
var output = new CodedOutputStream(memoryStream);
var key = 10;
var value1 = 20;
var value2 = 30;
// First entry
output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteLength(4);
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key);
output.WriteTag(2, WireFormat.WireType.Varint);
output.WriteInt32(value1);
// Second entry - same key, different value
output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteLength(4);
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key);
output.WriteTag(2, WireFormat.WireType.Varint);
output.WriteInt32(value2);
output.Flush();
var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
Assert.AreEqual(value2, parsed.MapInt32Int32[key]);
}
public void MapFieldOrderIsIrrelevant()
{
var memoryStream = new MemoryStream();
var output = new CodedOutputStream(memoryStream);
output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
var key = 10;
var value = 20;
// Each field can be represented in a single byte, with a single byte tag.
// Total message size: 4 bytes.
output.WriteLength(4);
output.WriteTag(2, WireFormat.WireType.Varint);
output.WriteInt32(value);
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key);
output.Flush();
var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
Assert.AreEqual(value, parsed.MapInt32Int32[key]);
}
public void MapWithOnlyValue()
{
// Hand-craft the stream to contain a single entry with just a value.
var memoryStream = new MemoryStream();
var output = new CodedOutputStream(memoryStream);
output.WriteTag(TestMap.MapInt32ForeignMessageFieldNumber, WireFormat.WireType.LengthDelimited);
var nestedMessage = new ForeignMessage { C = 20 };
// Size of the entry (tag, size written by WriteMessage, data written by WriteMessage)
output.WriteLength(2 + nestedMessage.CalculateSize());
output.WriteTag(2, WireFormat.WireType.LengthDelimited);
output.WriteMessage(nestedMessage);
output.Flush();
var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
Assert.AreEqual(nestedMessage, parsed.MapInt32ForeignMessage[0]);
}
public void RecursionLimitAppliedWhileSkippingGroup()
{
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
for (int i = 0; i < CodedInputStream.DefaultRecursionLimit + 1; i++)
{
output.WriteTag(1, WireFormat.WireType.StartGroup);
}
for (int i = 0; i < CodedInputStream.DefaultRecursionLimit + 1; i++)
{
output.WriteTag(1, WireFormat.WireType.EndGroup);
}
output.Flush();
stream.Position = 0;
// Now act like a generated client
var input = new CodedInputStream(stream);
Assert.AreEqual(WireFormat.MakeTag(1, WireFormat.WireType.StartGroup), input.ReadTag());
Assert.Throws<InvalidProtocolBufferException>(input.SkipLastField);
}
public void ExtraEndGroupSkipped()
{
var message = SampleMessages.CreateFullTestAllTypes();
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(100, WireFormat.WireType.EndGroup);
output.WriteTag(TestAllTypes.SingleFixed32FieldNumber, WireFormat.WireType.Fixed32);
output.WriteFixed32(123);
output.Flush();
stream.Position = 0;
var parsed = TestAllTypes.Parser.ParseFrom(stream);
Assert.AreEqual(new TestAllTypes { SingleFixed32 = 123 }, parsed);
}
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 = new CodedOutputStream(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 = new CodedOutputStream(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 = new CodedInputStream(new MemoryStream(bytes), new byte[50], 0, 0);
Assert.AreEqual(0, cin.Position);
// Field 1:
uint tag = cin.ReadTag();
Assert.AreEqual(1, tag >> 3);
Assert.AreEqual(1, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(3, cin.Position);
//Field 2:
tag = cin.ReadTag();
Assert.AreEqual(2, tag >> 3);
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
tag = cin.ReadTag();
Assert.AreEqual(11, tag >> 3);
Assert.AreEqual(6, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(8, cin.Position);
//Field 12: length delimited 120 bytes
tag = cin.ReadTag();
Assert.AreEqual(12, tag >> 3);
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
tag = cin.ReadTag();
Assert.AreEqual(13, tag >> 3);
// 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
tag = cin.ReadTag();
Assert.AreEqual(3, tag >> 3);
Assert.AreEqual(126, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(130, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
}
private byte[] IntToByteBuffer(int i)
{
int t = CodedOutputStream.ComputeTagSize(5);
int s = CodedOutputStream.ComputeInt32Size(i);
s += t;
byte[] bytes = new byte[s];
CodedOutputStream cos = new CodedOutputStream(bytes);
cos.WriteTag((5 << 3) + 0);
cos.WriteInt32(i);
cos.Flush();
return bytes;
}
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 = new CodedOutputStream(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 = new CodedOutputStream(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 = new CodedInputStream(new MemoryStream(bytes), new byte[50], 0, 0);
Assert.AreEqual(0, cin.Position);
// Field 1:
uint tag = cin.ReadTag();
Assert.AreEqual(1, tag >> 3);
Assert.AreEqual(1, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(3, cin.Position);
//Field 2:
tag = cin.ReadTag();
Assert.AreEqual(2, tag >> 3);
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
tag = cin.ReadTag();
Assert.AreEqual(11, tag >> 3);
Assert.AreEqual(6, cin.Position);
Assert.AreEqual(500, cin.ReadInt32());
Assert.AreEqual(8, cin.Position);
//Field 12: length delimited 120 bytes
tag = cin.ReadTag();
Assert.AreEqual(12, tag >> 3);
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
tag = cin.ReadTag();
Assert.AreEqual(13, tag >> 3);
// 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
tag = cin.ReadTag();
Assert.AreEqual(3, tag >> 3);
Assert.AreEqual(126, cin.Position);
Assert.AreEqual(501, cin.ReadSFixed32());
Assert.AreEqual(130, cin.Position);
Assert.IsTrue(cin.IsAtEnd);
}
}
public void RogueEndGroupTag()
{
// If we have an end-group tag without a leading start-group tag, generated
// code will just call SkipLastField... so that should fail.
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(1, WireFormat.WireType.EndGroup);
output.Flush();
stream.Position = 0;
var input = new CodedInputStream(stream);
Assert.AreEqual(WireFormat.MakeTag(1, WireFormat.WireType.EndGroup), input.ReadTag());
Assert.Throws<InvalidProtocolBufferException>(input.SkipLastField);
}
public void MapIgnoresExtraFieldsWithinEntryMessages()
{
// Hand-craft the stream to contain a single entry with three fields
var memoryStream = new MemoryStream();
var output = new CodedOutputStream(memoryStream);
output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
var key = 10; // Field 1
var value = 20; // Field 2
var extra = 30; // Field 3
// Each field can be represented in a single byte, with a single byte tag.
// Total message size: 6 bytes.
output.WriteLength(6);
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key);
output.WriteTag(2, WireFormat.WireType.Varint);
output.WriteInt32(value);
output.WriteTag(3, WireFormat.WireType.Varint);
output.WriteInt32(extra);
output.Flush();
var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
Assert.AreEqual(value, parsed.MapInt32Int32[key]);
}
public void SkipGroup()
{
// Create an output stream with a group in:
// Field 1: string "field 1"
// Field 2: group containing:
// Field 1: fixed int32 value 100
// Field 2: string "ignore me"
// Field 3: nested group containing
// Field 1: fixed int64 value 1000
// Field 3: string "field 3"
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(1, WireFormat.WireType.LengthDelimited);
output.WriteString("field 1");
// The outer group...
output.WriteTag(2, WireFormat.WireType.StartGroup);
output.WriteTag(1, WireFormat.WireType.Fixed32);
output.WriteFixed32(100);
output.WriteTag(2, WireFormat.WireType.LengthDelimited);
output.WriteString("ignore me");
// The nested group...
output.WriteTag(3, WireFormat.WireType.StartGroup);
output.WriteTag(1, WireFormat.WireType.Fixed64);
output.WriteFixed64(1000);
// Note: Not sure the field number is relevant for end group...
output.WriteTag(3, WireFormat.WireType.EndGroup);
// End the outer group
output.WriteTag(2, WireFormat.WireType.EndGroup);
output.WriteTag(3, WireFormat.WireType.LengthDelimited);
output.WriteString("field 3");
output.Flush();
stream.Position = 0;
// Now act like a generated client
var input = new CodedInputStream(stream);
Assert.AreEqual(WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited), input.ReadTag());
Assert.AreEqual("field 1", input.ReadString());
Assert.AreEqual(WireFormat.MakeTag(2, WireFormat.WireType.StartGroup), input.ReadTag());
input.SkipLastField(); // Should consume the whole group, including the nested one.
Assert.AreEqual(WireFormat.MakeTag(3, WireFormat.WireType.LengthDelimited), input.ReadTag());
Assert.AreEqual("field 3", input.ReadString());
}
public void MapNonContiguousEntries()
{
var memoryStream = new MemoryStream();
var output = new CodedOutputStream(memoryStream);
// Message structure:
// Entry for MapInt32Int32
// Entry for MapStringString
// Entry for MapInt32Int32
// First entry
var key1 = 10;
var value1 = 20;
output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteLength(4);
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key1);
output.WriteTag(2, WireFormat.WireType.Varint);
output.WriteInt32(value1);
// Second entry
var key2 = "a";
var value2 = "b";
output.WriteTag(TestMap.MapStringStringFieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteLength(6); // 3 bytes per entry: tag, size, character
output.WriteTag(1, WireFormat.WireType.LengthDelimited);
output.WriteString(key2);
output.WriteTag(2, WireFormat.WireType.LengthDelimited);
output.WriteString(value2);
// Third entry
var key3 = 15;
var value3 = 25;
output.WriteTag(TestMap.MapInt32Int32FieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteLength(4);
output.WriteTag(1, WireFormat.WireType.Varint);
output.WriteInt32(key3);
output.WriteTag(2, WireFormat.WireType.Varint);
output.WriteInt32(value3);
output.Flush();
var parsed = TestMap.Parser.ParseFrom(memoryStream.ToArray());
var expected = new TestMap
{
MapInt32Int32 = { { key1, value1 }, { key3, value3 } },
MapStringString = { { key2, value2 } }
};
Assert.AreEqual(expected, parsed);
}
public void SkipGroup_WrongEndGroupTag()
{
// Create an output stream with:
// Field 1: string "field 1"
// Start group 2
// Field 3: fixed int32
// End group 4 (should give an error)
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
output.WriteTag(1, WireFormat.WireType.LengthDelimited);
output.WriteString("field 1");
// The outer group...
output.WriteTag(2, WireFormat.WireType.StartGroup);
output.WriteTag(3, WireFormat.WireType.Fixed32);
output.WriteFixed32(100);
output.WriteTag(4, WireFormat.WireType.EndGroup);
output.Flush();
stream.Position = 0;
// Now act like a generated client
var input = new CodedInputStream(stream);
Assert.AreEqual(WireFormat.MakeTag(1, WireFormat.WireType.LengthDelimited), input.ReadTag());
Assert.AreEqual("field 1", input.ReadString());
Assert.AreEqual(WireFormat.MakeTag(2, WireFormat.WireType.StartGroup), input.ReadTag());
Assert.Throws<InvalidProtocolBufferException>(input.SkipLastField);
}
public void IgnoreUnknownFields_RealDataStillRead()
{
var message = SampleMessages.CreateFullTestAllTypes();
var stream = new MemoryStream();
var output = new CodedOutputStream(stream);
var unusedFieldNumber = 23456;
Assert.IsFalse(TestAllTypes.Descriptor.Fields.InDeclarationOrder().Select(x => x.FieldNumber).Contains(unusedFieldNumber));
output.WriteTag(unusedFieldNumber, WireFormat.WireType.LengthDelimited);
output.WriteString("ignore me");
message.WriteTo(output);
output.Flush();
stream.Position = 0;
var parsed = TestAllTypes.Parser.ParseFrom(stream);
Assert.AreEqual(message, parsed);
}
public void TestSlowPathAvoidance()
{
using (var ms = new MemoryStream())
{
CodedOutputStream output = new CodedOutputStream(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 = new CodedInputStream(ms, new byte[ms.Length / 2], 0, 0);
uint tag = input.ReadTag();
Assert.AreEqual(1, WireFormat.GetTagFieldNumber(tag));
Assert.AreEqual(100, input.ReadBytes().Length);
tag = input.ReadTag();
Assert.AreEqual(2, WireFormat.GetTagFieldNumber(tag));
Assert.AreEqual(100, input.ReadBytes().Length);
}
}