public void Inject_SpanContext_HeadersWithCorrectInfo()
        {
            const ulong spanId      = 10;
            const ulong traceId     = 7;
            var         spanContext = new SpanContext(traceId, spanId);

            HeaderCollectionPropagator.Inject(_headers, spanContext);

            Assert.Equal(spanId.ToString(), _headers.Get(HttpHeaderParentId));
            Assert.Equal(traceId.ToString(), _headers.Get(HttpHeaderTraceId));
        }