From 7e23080d45dbc00d3acfddb8bdbd5ba36540d088 Mon Sep 17 00:00:00 2001
From: Anna Henningsen <anna@addaleax.net>
Date: Wed, 18 Jul 2018 01:14:20 +0200
Subject: [PATCH] test: pass through stderr in benchmark tests

This helps a lot with debugging failing benchmark tests,
which would otherwise just print an assertion for the
exit code (something like `+1 -0`, which yields almost no
information about a failure).

PR-URL: https://github.com/nodejs/node/pull/21860
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Gabriel Schulhof <gabriel.schulhof@intel.com>
---
 test/common/benchmark.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/test/common/benchmark.js b/test/common/benchmark.js
index f8952a8b9ad647..0894146c4d1443 100644
--- a/test/common/benchmark.js
+++ b/test/common/benchmark.js
@@ -20,7 +20,10 @@ function runBenchmark(name, args, env) {
 
   const mergedEnv = Object.assign({}, process.env, env);
 
-  const child = fork(runjs, argv, { env: mergedEnv, stdio: 'pipe' });
+  const child = fork(runjs, argv, {
+    env: mergedEnv,
+    stdio: ['inherit', 'pipe', 'inherit', 'ipc']
+  });
   child.stdout.setEncoding('utf8');
 
   let stdout = '';