add test function

test/TestRefill.php

@@ -75,6 +75,13 @@ class TestRefill extends TestCase
         }
     }
 
+    public function testOilticket()
+    {
+        $providers = new refill\bjb\RefillPhone([]);
+
+
+    }
+
     public function testIpWhiteList()
     {
         $x = serialize(['47.99.57.105']);