From 43ba47ae8711d0e01ca70dc220620d11e8c7b30a Mon Sep 17 00:00:00 2001
From: Tuomas Suutari <tuomas.suutari@anders.fi>
Date: Mon, 15 Jan 2018 10:53:05 +0200
Subject: [PATCH] scripts/test: Use maxWorkers=4 when running on CI

It seems that Jest runs much faster in Travis when it's ran with this
flag.  E.g. for one particular project, this made the frontend testing
time drop from 20 minutes to 2 minutes.
---
 packages/react-scripts/scripts/test.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/react-scripts/scripts/test.js b/packages/react-scripts/scripts/test.js
index e9adb48f0..62336992e 100644
--- a/packages/react-scripts/scripts/test.js
+++ b/packages/react-scripts/scripts/test.js
@@ -32,6 +32,9 @@ const argv = process.argv.slice(2);
 if (!process.env.CI && argv.indexOf('--coverage') < 0) {
   argv.push('--watch');
 }
+else {
+  argv.push('--maxWorkers=4');
+}
 
 // @remove-on-eject-begin
 // This is not necessary after eject because we embed config into package.json.