From 0e9d8ad59a78a482d97f4fe735dafa1f65dc89d2 Mon Sep 17 00:00:00 2001
From: Dmitrii Sorin <info@staypositive.ru>
Date: Sat, 20 Jul 2019 18:18:26 +1000
Subject: [PATCH] tty.getWindowSize is not a function inside a "worker_threads"
 worker (#3955)

Use "isTTY" instead of tty.isatty(fd)
---
 lib/reporters/base.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/reporters/base.js b/lib/reporters/base.js
index 670a160fa8..b1d026fcce 100644
--- a/lib/reporters/base.js
+++ b/lib/reporters/base.js
@@ -25,7 +25,7 @@ exports = module.exports = Base;
  * Check if both stdio streams are associated with a tty.
  */
 
-var isatty = tty.isatty(1) && tty.isatty(2);
+var isatty = process.stdout.isTTY && process.stderr.isTTY;
 
 /**
  * Save log references to avoid tests interfering (see GH-3604).