From 19e0bb1881e24fb1ee3fe421413d4d87e67f68dd Mon Sep 17 00:00:00 2001
From: Dan Abramov <dan.abramov@gmail.com>
Date: Mon, 15 Jan 2018 17:49:57 +0000
Subject: [PATCH] Support Jest --watchAll flag (#3804)

* Support Jest --watchAll flag

* Use clearer condition

* Add comma
---
 packages/react-scripts/scripts/test.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/packages/react-scripts/scripts/test.js b/packages/react-scripts/scripts/test.js
index ee592d9b115..470e8e35721 100644
--- a/packages/react-scripts/scripts/test.js
+++ b/packages/react-scripts/scripts/test.js
@@ -33,8 +33,12 @@ if (process.env.SKIP_PREFLIGHT_CHECK !== 'true') {
 const jest = require('jest');
 const argv = process.argv.slice(2);
 
-// Watch unless on CI or in coverage mode
-if (!process.env.CI && argv.indexOf('--coverage') < 0) {
+// Watch unless on CI, in coverage mode, or explicitly running all tests
+if (
+  !process.env.CI &&
+  argv.indexOf('--coverage') === -1 &&
+  argv.indexOf('--watchAll') === -1
+) {
   argv.push('--watch');
 }