From 29028717727b708a7807f8106eeea51c183924dd Mon Sep 17 00:00:00 2001
From: Suraj Nath <9503187+electron0zero@users.noreply.github.com>
Date: Thu, 12 Oct 2023 02:12:18 +0530
Subject: [PATCH] fix panic in test

---
 modules/overrides/user_configurable_overrides_test.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/overrides/user_configurable_overrides_test.go b/modules/overrides/user_configurable_overrides_test.go
index bdc763d5f71..5b44ca82716 100644
--- a/modules/overrides/user_configurable_overrides_test.go
+++ b/modules/overrides/user_configurable_overrides_test.go
@@ -18,6 +18,7 @@ import (
 	"github.com/grafana/tempo/pkg/util/listtomap"
 	"github.com/grafana/tempo/tempodb/backend"
 	"github.com/grafana/tempo/tempodb/backend/local"
+	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/model"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -289,6 +290,8 @@ func localUserConfigOverrides(t *testing.T, baseLimits Overrides, PerTenantOverr
 	baseOverrides, err := NewOverrides(baseCfg)
 	assert.NoError(t, err)
 
+	// have to overwrite the registry or test panics with multiple metric reg
+	prometheus.DefaultRegisterer = prometheus.NewRegistry()
 	configurableOverrides, err := newUserConfigOverrides(cfg, baseOverrides)
 	assert.NoError(t, err)