From 609a83db5e8eae03bfb6737e53b3dab1f64aba32 Mon Sep 17 00:00:00 2001
From: "R.B. Boyer" <4903+rboyer@users.noreply.github.com>
Date: Tue, 29 Mar 2022 13:17:41 -0500
Subject: [PATCH] add missing line from prototest.AssertDeepEqual (#12645)

---
 proto/prototest/testing.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/proto/prototest/testing.go b/proto/prototest/testing.go
index 5b5468ea6..1dbe03618 100644
--- a/proto/prototest/testing.go
+++ b/proto/prototest/testing.go
@@ -3,11 +3,15 @@ package prototest
 import (
 	"testing"
 
+	"github.com/golang/protobuf/proto"
 	"github.com/google/go-cmp/cmp"
 )
 
 func AssertDeepEqual(t *testing.T, x, y interface{}, opts ...cmp.Option) {
 	t.Helper()
+
+	opts = append(opts, cmp.Comparer(proto.Equal))
+
 	if diff := cmp.Diff(x, y, opts...); diff != "" {
 		t.Fatalf("assertion failed: values are not equal\n--- expected\n+++ actual\n%v", diff)
 	}