public void MergingCornerCase()
{
var message = new TestWellKnownTypes {
Int32Field = 5
};
// Create a byte array which has the data of an Int32Value explicitly containing a value of 0.
// This wouldn't normally happen.
byte[] bytes;
var wrapperTag = WireFormat.MakeTag(TestWellKnownTypes.Int32FieldFieldNumber, WireFormat.WireType.LengthDelimited);
var valueTag = WireFormat.MakeTag(Int32Value.ValueFieldNumber, WireFormat.WireType.Varint);
using (var stream = new MemoryStream())
{
var coded = new CodedOutputStream(stream);
coded.WriteTag(wrapperTag);
coded.WriteLength(2); // valueTag + a value 0, each one byte
coded.WriteTag(valueTag);
coded.WriteInt32(0);
coded.Flush();
bytes = stream.ToArray();
}
message.MergeFrom(bytes);
// A normal implementation would have 0 now, as the explicit default would have been overwritten the 5.
Assert.AreEqual(5, message.Int32Field);
}
public void MergingMessageWithZero(int?originValue, int?mergingValue, int?expectedResult)
{
// This differs from the MergingStreamCornerCase because when we merge message *objects*,
// we ignore default values from the "source".
var message1 = new TestWellKnownTypes {
Int32Field = originValue
};
var message2 = new TestWellKnownTypes {
Int32Field = mergingValue
};
message1.MergeFrom(message2);
Assert.AreEqual(expectedResult, message1.Int32Field);
}
public void MergingStreamNoValue()
{
var message = new TestWellKnownTypes {
Int32Field = 5
};
// Create a byte array which an Int32 field, but with no value.
var bytes = new TestWellKnownTypes {
Int32Field = 0
}.ToByteArray();
Assert.AreEqual(2, bytes.Length); // The tag for Int32Field is a single byte, then a byte indicating a 0-length message.
message.MergeFrom(bytes);
// The "implicit" 0 did *not* overwrite the value.
// (This is the correct behaviour.)
Assert.AreEqual(5, message.Int32Field);
}
public void Merging(string original, string merged, string expected)
{
var originalMessage = new TestWellKnownTypes {
StringField = original
};
var mergingMessage = new TestWellKnownTypes {
StringField = merged
};
originalMessage.MergeFrom(mergingMessage);
Assert.AreEqual(expected, originalMessage.StringField);
// Try it using MergeFrom(CodedInputStream) too...
originalMessage = new TestWellKnownTypes {
StringField = original
};
originalMessage.MergeFrom(mergingMessage.ToByteArray());
Assert.AreEqual(expected, originalMessage.StringField);
}
public void MergingCornerCase()
{
var message = new TestWellKnownTypes { Int32Field = 5 };
// Create a byte array which has the data of an Int32Value explicitly containing a value of 0.
// This wouldn't normally happen.
byte[] bytes;
var wrapperTag = WireFormat.MakeTag(TestWellKnownTypes.Int32FieldFieldNumber, WireFormat.WireType.LengthDelimited);
var valueTag = WireFormat.MakeTag(Int32Value.ValueFieldNumber, WireFormat.WireType.Varint);
using (var stream = new MemoryStream())
{
var coded = new CodedOutputStream(stream);
coded.WriteTag(wrapperTag);
coded.WriteLength(2); // valueTag + a value 0, each one byte
coded.WriteTag(valueTag);
coded.WriteInt32(0);
coded.Flush();
bytes = stream.ToArray();
}
message.MergeFrom(bytes);
// A normal implementation would have 0 now, as the explicit default would have been overwritten the 5.
Assert.AreEqual(5, message.Int32Field);
}
public void Merging(string original, string merged, string expected)
{
var originalMessage = new TestWellKnownTypes { StringField = original };
var mergingMessage = new TestWellKnownTypes { StringField = merged };
originalMessage.MergeFrom(mergingMessage);
Assert.AreEqual(expected, originalMessage.StringField);
// Try it using MergeFrom(CodedInputStream) too...
originalMessage = new TestWellKnownTypes { StringField = original };
originalMessage.MergeFrom(mergingMessage.ToByteArray());
Assert.AreEqual(expected, originalMessage.StringField);
}
public void MergingMessageWithZero(int? originValue, int? mergingValue, int? expectedResult)
{
// This differs from the MergingStreamCornerCase because when we merge message *objects*,
// we ignore default values from the "source".
var message1 = new TestWellKnownTypes { Int32Field = originValue };
var message2 = new TestWellKnownTypes { Int32Field = mergingValue };
message1.MergeFrom(message2);
Assert.AreEqual(expectedResult, message1.Int32Field);
}
public void MergingStreamNoValue()
{
var message = new TestWellKnownTypes { Int32Field = 5 };
// Create a byte array which an Int32 field, but with no value.
var bytes = new TestWellKnownTypes { Int32Field = 0 }.ToByteArray();
Assert.AreEqual(2, bytes.Length); // The tag for Int32Field is a single byte, then a byte indicating a 0-length message.
message.MergeFrom(bytes);
// The "implicit" 0 did *not* overwrite the value.
// (This is the correct behaviour.)
Assert.AreEqual(5, message.Int32Field);
}
