regression test for issue-65

sweeper_test.go

@@ -0,0 +1,44 @@
+package flow
+
+import (
+	"testing"
+	"time"
+)
+
+// regression test for libp2p/go-libp2p-core#65
+func TestIdleInconsistency(t *testing.T) {
+	r := new(MeterRegistry)
+	m1 := r.Get("first")
+	m2 := r.Get("second")
+	m3 := r.Get("third")
+
+	m1.Mark(10)
+	m2.Mark(20)
+	m3.Mark(30)
+
+	// make m1 and m3 go idle
+	for i := 0; i < 30; i++ {
+		time.Sleep(time.Second)
+		m2.Mark(1)
+	}
+
+	time.Sleep(time.Second)
+
+	// re-activate m3
+	m3.Mark(20)
+	time.Sleep(time.Second + time.Millisecond)
+
+	// check the totals
+	if total := r.Get("first").Snapshot().Total; total != 10 {
+		t.Errorf("expected first total to be 10, got %d", total)
+	}
+
+	if total := r.Get("second").Snapshot().Total; total != 50 {
+		t.Errorf("expected second total to be 50, got %d", total)
+	}
+
+	if total := r.Get("third").Snapshot().Total; total != 50 {
+		t.Errorf("expected third total to be 50, got %d", total)
+	}
+
+}