public void GetHeaderBinaryValue() { using (CancellationTokenSource tokenSource = new CancellationTokenSource()) { CallOptions callOptions = CreateCallOptions(tokenSource.Token); Assert.AreEqual(1, callOptions.GetHeaderBinaryValue("a" + Metadata.BinaryHeaderSuffix).Length); Assert.IsNull(callOptions.GetHeaderBinaryValue("b" + Metadata.BinaryHeaderSuffix)); } }