Merge pull request #567 from prometheus/beorn7/counter

Make TestCounterAddLarge more robust
2019-05-04 18:08:04 +02:00 · 2019-05-04 18:08:04 +02:00 · 906d2976cb
parent e11546c7ec bf1f4e4a24
commit 906d2976cb
1 changed files with 1 additions and 1 deletions
--- a/prometheus/counter_test.go
+++ b/prometheus/counter_test.go
@ -172,7 +172,7 @@ func TestCounterAddLarge(t *testing.T) {
 	}).(*counter)

 	// large overflows the underlying type and should therefore be stored in valBits.
-	large := float64(math.MaxUint64 + 1)
+	large := math.Nextafter(float64(math.MaxUint64), 1e20)
 	counter.Add(large)
 	if expected, got := large, math.Float64frombits(counter.valBits); expected != got {
 		t.Errorf("valBits expected %f, got %f.", expected, got)