From 611ed749c9d736c7c1c3b50f8f9b51e6cf479a9f Mon Sep 17 00:00:00 2001
From: Slava Bacherikov <slava@bacher09.org>
Date: Fri, 2 Feb 2018 15:49:59 +0200
Subject: [PATCH] Run sauce tests only if credentials are loaded

---
 karma.conf.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/karma.conf.js b/karma.conf.js
index 815f37e..b113cbf 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -105,7 +105,7 @@ module.exports = function(config) {
         configuration.browsers = ['ChromeHeadlessTravis', 'FirefoxHeadless'];
     }
 
-    if (process.env.SAUCE) {
+    if (process.env.SAUCE && process.env.SAUCE_USERNAME) {
         var currentBrowsers = configuration.browsers;
         var sauceBrowsers = Object.keys(customLaunchers).filter((s) => s.startsWith('sl_'));
         configuration.browsers = currentBrowsers.concat(sauceBrowsers);