From 3fde09c589c6e7677104fdd2974029df1c46a008 Mon Sep 17 00:00:00 2001
From: Tim Allclair <tallclair@google.com>
Date: Wed, 17 Aug 2022 13:34:31 -0700
Subject: [PATCH] Mark VerifyNone as a test Helper

---
 leaks.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/leaks.go b/leaks.go
index f44dc25..ace2e2b 100644
--- a/leaks.go
+++ b/leaks.go
@@ -69,12 +69,21 @@ func Find(options ...Option) error {
 	return fmt.Errorf("found unexpected goroutines:\n%s", stacks)
 }
 
+type testHelper interface {
+	Helper()
+}
+
 // VerifyNone marks the given TestingT as failed if any extra goroutines are
 // found by Find. This is a helper method to make it easier to integrate in
 // tests by doing:
 //
 //	defer VerifyNone(t)
 func VerifyNone(t TestingT, options ...Option) {
+	if h, ok := t.(testHelper); ok {
+		// Mark this function as a test helper, if available.
+		h.Helper()
+	}
+
 	if err := Find(options...); err != nil {
 		t.Error(err)
 	}