Add withBearerToken method

Author: aryehraber

src/Illuminate/Foundation/Testing/Concerns/MakesHttpRequests.php

@@ -92,6 +92,19 @@ public function flushHeaders()
         return $this;
     }
 
+    /**
+     * Add a bearer token to the request headers.
+     *
+     * @param  string  $value
+     * @return $this
+     */
+    public function withBearerToken(string $value)
+    {
+        $this->defaultHeaders['Authorization'] = 'Bearer '.$value;
+
+        return $this;
+    }
+
     /**
      * Define a set of server variables to be sent with the requests.
      *