From 237035be543642614230c972b5089fc651f45ca1 Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Fri, 8 Nov 2019 20:39:40 +0200
Subject: [PATCH] regression test for issue-65

---
 sweeper_test.go | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 sweeper_test.go

diff --git a/sweeper_test.go b/sweeper_test.go
new file mode 100644
index 0000000..6022778
--- /dev/null
+++ b/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)
+	}
+
+}