public void FromGoogleTrace()
{
var oldTracer = ContextTracerManager.GetCurrentTracer();
try
{
string traceId = "dummy_trace_id";
ulong spanId = 0x12D687;
// The spanId set on the log entry should confirm to x16
// format so that the backend can really associate the log entry
// to the span.
string expectedSpanId = "000000000012d687";
ContextTracerManager.SetCurrentTracer(MockTracer(traceId, spanId));
var traceContext = TraceContextForLogEntry.FromGoogleTrace();
Assert.Equal(traceId, traceContext.TraceId);
Assert.Equal(expectedSpanId, traceContext.SpanId);
}
finally
{
ContextTracerManager.SetCurrentTracer(oldTracer);
}
}
public void FromGoogleTrace_NoTrace()
{
var oldTracer = ContextTracerManager.GetCurrentTracer();
try
{
ContextTracerManager.SetCurrentTracer(MockTracer());
Assert.Null(TraceContextForLogEntry.FromGoogleTrace());
}
finally
{
ContextTracerManager.SetCurrentTracer(oldTracer);
}
}
public void GetCurrentTraceContext()
{
string traceId = "105445aa7843bc8bf206b12000100f00";
ulong spanId = 0x12D687;
// The spanId set on the log entry should confirm to x16
// format so that the backend can really associate the log entry
// to the span.
string expectedSpanId = "000000000012d687";
IServiceProvider serviceProvider = MockServiceProvider(traceId, spanId, true);
GoogleTraceProvider traceProvider = new GoogleTraceProvider();
TraceContextForLogEntry traceContext = traceProvider.GetCurrentTraceContext(serviceProvider);
Assert.Equal(traceId, traceContext.TraceId);
Assert.Equal(expectedSpanId, traceContext.SpanId);
}
private void SetTraceAndSpanIfAny(LogEntry entry)
{
if (_traceTarget is null)
{
return;
}
// If there's currently a Google trace and span use that one.
// This means that the Google Trace component of the diagnostics library
// has been initialized.
// Else attempt to use an external trace context.
if ((TraceContextForLogEntry.FromGoogleTrace() ?? TraceContextForLogEntry.FromExternalTrace(_serviceProvider)) is TraceContextForLogEntry trace)
{
entry.Trace = _traceTarget.GetFullTraceName(trace.TraceId);
entry.TraceSampled = true;
entry.SpanId = trace.SpanId;
}
}
public void FromGoogleTrace_NoSpan()
{
var oldTracer = ContextTracerManager.GetCurrentTracer();
try
{
string traceId = "dummy_trace_id";
ContextTracerManager.SetCurrentTracer(MockTracer(traceId));
var traceContext = TraceContextForLogEntry.FromGoogleTrace();
Assert.Equal(traceId, traceContext.TraceId);
Assert.Null(traceContext.SpanId);
}
finally
{
ContextTracerManager.SetCurrentTracer(oldTracer);
}
}
/// <inheritdoc/> public TraceContextForLogEntry GetCurrentTraceContext(IServiceProvider serviceProvider) => TraceContextForLogEntry.FromGoogleTraceHeader(serviceProvider);
