Merge pull request #567 from prometheus/beorn7/counter

Make TestCounterAddLarge more robust
prometheus · May 4, 2019 · 906d297 · 906d297
2 parents e11546c + bf1f4e4
commit 906d297
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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)