Test Automation support added

Author: uttamukkoji

test/AssetsTest.php

@@ -18,8 +18,8 @@ class AssetsTest extends TestCase {
     public static function setUpBeforeClass() : void {
         self::$rest = new REST();
         self::$Stack = Contentstack\Contentstack::Stack(self::$rest->getAPIKEY(), self::$rest->getAccessToken(),  self::$rest->getEnvironmentName());
-        if (!is_null($rest->getHost())) {
-            self::$Stack->setHost($rest->getHost());
+        if (self::$rest->getHost() !== NULL) {
+            self::$Stack->setHost(self::$rest->getHost());
         }
     }
     /*