'; $array = \Omnipay\WechatPay\Helper::xml2array($xml); $this->assertArrayHasKey('return_code', $array); } /** @test */ public function it_should_return_an_empty_array_if_xml_is_empty() { $array = \Omnipay\WechatPay\Helper::xml2array(''); $this->assertEquals([], $array); } }