public void TextMapPropagator_Extract_TraceContextHeaderMissing()
{
var headersConfig = new HeadersConfig("TraceContextHeaderName", "TraceBaggageHeaderPrefix");
var propagator = new TextMapPropagator(headersConfig, (val) => val, (val) => val);
var carrier = new DictionaryTextMap(new Dictionary <string, string> {
{ "TraceBaggageHeaderPrefix-Item1", "item1" },
{ "TraceBaggageHeaderPrefix-Item2", "item2" },
});
var sc = (SpanContext)propagator.Extract(carrier);
Assert.Null(sc);
}
public void TextMapPropagator_Inject_SetsTheRightHeadersWithTheRightData()
{
var headersConfig = new HeadersConfig("TraceContextHeaderName", "TraceBaggageHeaderPrefix");
var propagator = new TextMapPropagator(headersConfig, (val) => val, (val) => val);
var baggage = new Dictionary <string, string> {
{ "key1", "value1" }, { "key2", "value2" }
};
var spanContext = Substitute.For <ILetsTraceSpanContext>();
var carrier = new DictionaryTextMap();
spanContext.GetBaggageItems().Returns(baggage);
propagator.Inject(spanContext, carrier);
var carrierDict = carrier.ToDictionary(c => c.Key, c => c.Value);
Assert.Equal(spanContext.GetType().FullName, carrierDict[headersConfig.TraceContextHeaderName]); // cannot mock ToString
Assert.Equal(baggage["key1"], carrierDict[$"{headersConfig.TraceBaggageHeaderPrefix}-key1"]);
Assert.Equal(baggage["key2"], carrierDict[$"{headersConfig.TraceBaggageHeaderPrefix}-key2"]);
}
public void TextMapPropagator_Extract_SetsTheRightHeadersWithTheRightData()
{
var headersConfig = new HeadersConfig("TraceContextHeaderName", "TraceBaggageHeaderPrefix");
var propagator = new TextMapPropagator(headersConfig, (val) => val, (val) => val);
var carrier = new DictionaryTextMap(new Dictionary <string, string> {
{ "TraceContextHeaderName", "1:2:3:4" },
{ "TraceBaggageHeaderPrefix-Item1", "item1" },
{ "TraceBaggageHeaderPrefix-Item2", "item2" },
});
var sc = (SpanContext)propagator.Extract(carrier);
var baggage = sc.GetBaggageItems().ToDictionary(kv => kv.Key, kv => kv.Value);
Assert.Equal("item1", baggage["Item1"]);
Assert.Equal("item2", baggage["Item2"]);
Assert.Equal("1", sc.TraceId.Low.ToString());
Assert.Equal("2", sc.SpanId.ToString());
Assert.Equal("3", sc.ParentId.ToString());
Assert.Equal(4, (byte)sc.Flags);
}
