public void LegacyGeneratedCodeThrowsWithReadOnlySequence()
{
var message = new ParseContextEnabledMessageB
{
A = new LegacyGeneratedCodeMessageA
{
Bb = new ParseContextEnabledMessageB {
OptionalInt32 = 12345
}
},
OptionalInt32 = 6789
};
var data = message.ToByteArray();
// if parsing started using ReadOnlySequence and we don't have a CodedInputStream
// instance at hand, we cannot fall back to the legacy MergeFrom(CodedInputStream)
// method and parsing will fail. As a consequence, one can only use parsing
// from ReadOnlySequence if all the messages in the parsing tree have their generated
// code up to date.
var exception = Assert.Throws <InvalidProtocolBufferException>(() =>
{
ParseContext.Initialize(new ReadOnlySequence <byte>(data), out ParseContext parseCtx);
var parsed = new ParseContextEnabledMessageB();
ParsingPrimitivesMessages.ReadRawMessage(ref parseCtx, parsed);
});
Assert.AreEqual($"Message {typeof(LegacyGeneratedCodeMessageA).Name} doesn't provide the generated method that enables ParseContext-based parsing. You might need to regenerate the generated protobuf code.", exception.Message);
}
public void IntermixingOfNewAndLegacyGeneratedCodeWorksWithCodedInputStream()
{
var message = new ParseContextEnabledMessageB
{
A = new LegacyGeneratedCodeMessageA
{
Bb = new ParseContextEnabledMessageB {
OptionalInt32 = 12345
}
},
OptionalInt32 = 6789
};
var data = message.ToByteArray();
// when parsing started using CodedInputStream and a message with legacy generated code
// is encountered somewhere in the parse tree, we still need to be able to use its
// MergeFrom(CodedInputStream) method to parse correctly.
var codedInput = new CodedInputStream(data);
var parsed = new ParseContextEnabledMessageB();
codedInput.ReadRawMessage(parsed);
Assert.IsTrue(codedInput.IsAtEnd);
Assert.AreEqual(12345, parsed.A.Bb.OptionalInt32);
Assert.AreEqual(6789, parsed.OptionalInt32);
}
