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 TestDefaultValue()
{
// WriteTagAndValue ignores default values
var stream = new MemoryStream();
CodedOutputStream codedOutput;
#if !NET35
codedOutput = new CodedOutputStream(stream);
codec.WriteTagAndValue(codedOutput, codec.DefaultValue);
codedOutput.Flush();
Assert.AreEqual(0, stream.Position);
Assert.AreEqual(0, codec.CalculateSizeWithTag(codec.DefaultValue));
if (typeof(T).GetTypeInfo().IsValueType)
{
Assert.AreEqual(default(T), codec.DefaultValue);
}
#endif
// The plain ValueWriter/ValueReader delegates don't.
if (codec.DefaultValue != null) // This part isn't appropriate for message types.
{
codedOutput = new CodedOutputStream(stream);
WriteContext.Initialize(codedOutput, out WriteContext ctx);
try
{
// only write the value using the codec
codec.ValueWriter(ref ctx, codec.DefaultValue);
}
finally
{
ctx.CopyStateTo(codedOutput);
}
codedOutput.Flush();
Assert.AreNotEqual(0, stream.Position);
Assert.AreEqual(stream.Position, codec.ValueSizeCalculator(codec.DefaultValue));
stream.Position = 0;
var codedInput = new CodedInputStream(stream);
Assert.AreEqual(codec.DefaultValue, codec.Read(codedInput));
}
}