Fix failing test

src/Http/Response.php

@@ -114,11 +114,11 @@ class Response
     /**
      * Return result
      *
-     * @return mixed
+     * @return array
      */
     public function getResult()
     {
-        return isset($this->result) ? $this->result : null;
+        return isset($this->result) ? $this->result : [];
     }
 
     /**

tests/unit/Entities/ServerResponseTest.php

@@ -79,7 +79,7 @@ class ServerResponseTest extends TestCase
         $server = new Response(json_decode($result, true), 'testbot');
 
         self::assertFalse($server->isOk());
-        self::assertNull($server->getResult());
+        self::assertEquals([], $server->getResult());
         self::assertEquals('400', $server->getErrorCode());
         self::assertEquals('Error: Bad Request: wrong chat id', $server->getDescription());
     }
@@ -115,7 +115,7 @@ class ServerResponseTest extends TestCase
         $server = new Response(json_decode($result, true), 'testbot');
 
         self::assertFalse($server->isOk());
-        self::assertNull($server->getResult());
+        self::assertEquals([], $server->getResult());
         self::assertEquals(400, $server->getErrorCode());
         self::assertEquals('Error: Bad request: htttps://domain.host.org/dir/hook.php', $server->getDescription());
     }