From d0c8fd615488608018bf0ced1f9f327e67804341 Mon Sep 17 00:00:00 2001
From: Tobias Grieger <tobias.b.grieger@gmail.com>
Date: Wed, 26 Aug 2020 13:06:16 +0200
Subject: [PATCH] Add missing t.Helper()

I noticed over in cockroachdb/cockroach that test failures were printed
as originating from `datadriven.go:194` as opposed to the actual test's
invocation of `datadriven.RunTest`. Inserting the missing `t.Helper()`
call seems to have fixed that.
---
 datadriven.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/datadriven.go b/datadriven.go
index d45cb3f..9849b84 100644
--- a/datadriven.go
+++ b/datadriven.go
@@ -188,6 +188,7 @@ func runDirectiveOrSubTest(
 	mandatorySubTestPrefix string,
 	f func(*testing.T, *TestData) string,
 ) {
+	t.Helper()
 	if subTestName, ok := isSubTestStart(t, r, mandatorySubTestPrefix); ok {
 		runSubTest(subTestName, t, r, f)
 	} else {