fix: fix unit test failure

Author: nithinputhenveettil

delayed_spans.go

@@ -42,7 +42,12 @@ func (ds *delayedSpans) flush() {
 				continue
 			}
 
-			if sensor.Agent().Ready() {
+			// Get agent ready status under proper synchronization
+			muSensor.Lock()
+			agentReady := sensor != nil && sensor.Agent().Ready()
+			muSensor.Unlock()
+
+			if agentReady {
 				s.tracer.recorder.RecordSpan(s)
 			} else {
 				ds.append(s)

delayed_spans_test.go

@@ -56,7 +56,7 @@ func TestPartiallyFlushDelayedSpans(t *testing.T) {
 
 	notReadyAfter := maxDelayedSpans / 10
 	sensor.agent = &eventuallyNotReadyClient{
-		notReadyAfter: uint64(notReadyAfter),
+		notReadyAfter: uint64(notReadyAfter * 2),
 	}
 
 	delayed.flush()