From: Shengjing Zhu Date: Tue, 13 Aug 2024 16:38:11 +0800 Subject: Fix panic in TestGauge `n-1` is used as slice index, it should be >= 0 --- metrics/teststat/teststat.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/metrics/teststat/teststat.go b/metrics/teststat/teststat.go index 7918b9f..db29c38 100644 --- a/metrics/teststat/teststat.go +++ b/metrics/teststat/teststat.go @@ -42,7 +42,7 @@ func FillCounter(counter metrics.Counter) float64 { // to check that the gauge has the correct final value. func TestGauge(gauge metrics.Gauge, value func() []float64) error { a := rand.Perm(100) - n := rand.Intn(len(a)) + n := rand.Intn(len(a)) + 1 var want []float64 for i := 0; i < n; i++ {