From 9be1b8fee777fb94d11859a59258f16d0ea6f7c3 Mon Sep 17 00:00:00 2001
From: Ivan Goncharov <i.morph@gmail.com>
Date: Wed, 20 Nov 2024 10:02:50 +0100
Subject: [PATCH] fix: add very small delay between observations to make test
 more realistic (and faster)

Signed-off-by: Ivan Goncharov <i.morph@gmail.com>
---
 prometheus/histogram_test.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/prometheus/histogram_test.go b/prometheus/histogram_test.go
index f3ee917ea..1a19df2e2 100644
--- a/prometheus/histogram_test.go
+++ b/prometheus/histogram_test.go
@@ -382,6 +382,7 @@ func TestHistogramAtomicObserve(t *testing.T) {
 				return
 			default:
 				his.Observe(1)
+				time.Sleep(time.Nanosecond)
 			}
 		}
 	}