public function testPurchase()
{
/**
* @var AopTradePreCreateResponse $response
*/
$response = $this->gateway->purchase(['biz_content' => ['out_trade_no' => date('YmdHis') . mt_rand(1000, 9999), 'subject' => 'test', 'total_amount' => '0.01']])->send();
$this->assertArrayHasKey('alipay_trade_precreate_response', $response->getData());
$this->assertFalse($response->isSuccessful());
$this->assertFalse($response->isRedirect());
}
