public async Task Trace_Header()
{
string traceId = TraceIdFactory.Create().NextId();
ulong spanId = SpanIdFactory.Create().NextId();
string testId = Utils.GetTestId();
var startTime = Timestamp.FromDateTime(DateTime.UtcNow);
var builder = new WebHostBuilder().UseStartup <TraceTestNoBufferLowQpsApplication>();
using (var server = new TestServer(builder))
{
var client = server.CreateClient();
var header = TraceHeaderContext.Create(traceId, spanId, shouldTrace: true);
client.DefaultRequestHeaders.Add(TraceHeaderContext.TraceHeader, header.ToString());
await client.GetAsync($"/Trace/Trace/{testId}");
}
var spanName = TraceController.GetMessage(nameof(TraceController.Trace), testId);
var trace = _polling.GetTrace(spanName, startTime);
Assert.NotNull(trace);
Assert.Equal(traceId, trace.TraceId);
Assert.Equal(2, trace.Spans.Count);
var span = trace.Spans.First(s => s.Name.StartsWith("/Trace"));
Assert.Equal(spanId, span.ParentSpanId);
}
public async Task Trace_Header()
{
string traceId = TraceIdFactory.Create().NextId();
ulong spanId = SpanIdFactory.Create().NextId();
string testId = Utils.GetTestId();
var startTime = Timestamp.FromDateTime(DateTime.UtcNow);
var client = _noBufferLowQps.CreateClient();
var header = TraceHeaderContext.Create(traceId, spanId, shouldTrace: true);
client.DefaultRequestHeaders.Add(TraceHeaderContext.TraceHeader, header.ToString());
var response = await client.GetAsync($"/Trace/Trace/{testId}");
var spanName = TraceController.GetMessage(nameof(TraceController.Trace), testId);
var trace = _polling.GetTrace(spanName, startTime);
Assert.NotNull(trace);
Assert.Equal(traceId, trace.TraceId);
Assert.Equal(2, trace.Spans.Count);
var span = trace.Spans.First(s => s.Name.StartsWith("/Trace"));
Assert.Equal(spanId, span.ParentSpanId);
Assert.True(response.Headers.Contains(TraceHeaderContext.TraceHeader));
var returnedHeader = response.Headers.GetValues(TraceHeaderContext.TraceHeader).Single();
var headerContext = TraceHeaderContext.FromHeader(returnedHeader);
Assert.Equal(traceId, headerContext.TraceId);
Assert.Equal(spanId, headerContext.SpanId);
Assert.True(headerContext.ShouldTrace);
}