.

go/internal/xtracing/tracetest/tracetest.go

@@ -790,6 +790,7 @@ func Verify(t testing.TB, f func(t *T)) {
 	tT := &T{_testing_TB: t, streamTab: make(map[string]Chan)}
 	// XXX
 
+	func() {
 		// verify in the end that no events are left unchecked / unconsumed,
 		// e.g. sent to RxEvent, but not received. Nak them if they are and fail.
 		//
@@ -803,17 +804,20 @@ func Verify(t testing.TB, f func(t *T)) {
 		}()
 
 		f(tT)
+	}()
+
+	// now, if f succeeds, verify f with injected delays.
+	if tT.Failed() {
+		return
+	}
 
-/*
-	// now verify f with injected delays.
 	trace0 := tT.tracev
 	// sort trace0 by time just in case - events migth come from multiple
 	// CPUs simultaneously, and so for close events they might be added to
 	// tracev not in time order.
 	sort.Slice(trace0, func(i, j int) bool {
-		return trace0[i].t.Before(trace[j].t)
-	}
-*/
+		return trace0[i].t.Before(trace0[j].t)
+	})
 
 
 	// XXX in the end: verify that streams are the same from run to run (if completed successfully).