phpSpec no beCalled([array:0]) matcher found for null答案

【问题标题】：phpSpec no beCalled([array:0]) matcher found for nullphpSpec no beCalled([array:0]) matcher found for null
【发布时间】：2016-09-26 22:58:32
【问题描述】：

我正在尝试使用 phpSpec 来设计我的课程。我偶然发现在我的一个事件处理程序上测试句柄方法。

我的规格：

use App\Order;
use App\Models\Payments\Payment;
use App\Services\Payments\PaymentService;
use App\Events\Payments\AccountPayment;

class RecordPaymentTransactionSpec extends ObjectBehavior
{
    function let(PaymentService $paymentService)
    {
        $this->beConstructedWith($paymentService);
    }

    function it_is_initializable()
    {
        $this->shouldHaveType('App\Handlers\Events\Payments\RecordPaymentTransaction');
    }

    function it_should_record_payment_transaction(AccountPayment $event)
    {
        $this->paymentService->recordPayment($event)->shouldBeCalled();
    }
}

这是我的实现：

class RecordPaymentTransaction {

    public $paymentService;

    /**
     * Create the event handler.
     *
     * RecordPaymentTransaction constructor.
     * @param PaymentService $paymentService
     */
    public function __construct(PaymentService $paymentService)
    {
        $this->paymentService = $paymentService;
    }

    /**
     * Handle the event.
     *
     * @param  AccountPayment  $event
     * @return void
     */
    public function handle(AccountPayment $event)
    {
        $this->paymentService->recordPayment($event);
    }

}

但是，我不断收到此错误：

 - it should record payment transaction
      no beCalled([array:0]) matcher found for null.

看不到我在这里做错了什么，请帮忙。

【问题讨论】：

标签： laravel-5 phpspec

【解决方案1】：

function it_should_record_payment_transaction(AccountPayment $event)
{
    $this->paymentService->recordPayment($event)->shouldBeCalled();
}

应该是

function it_should_record_payment_transaction(
    PaymentService $paymentService, 
    AccountPayment $event
) {
    $paymentService->recordPayment($event)->shouldBeCalled();
    $this->handle($event);
}

或

function it_should_record_payment_transaction(AccountPayment $event) 
{
    $prophet = new Prophet();
    $paymentService = $prophet->prophesize(PaymentService::class);

    $paymentService->recordPayment($event)->shouldBeCalled();
    $this->handle($event);

    $prophet->checkPredictions();
}

这是因为，当您指定一个类时，您应该只调用它的公共方法并对合作者提出期望。

您不需要（而且您不应该这样做）用

呼叫合作者

$this->collaboratorName->method->shouldBeCalled()

使用“隐式”模拟（通过将它们传递给规范方法签名：如果它们在let 函数中使用并且具有相同的名称和类型，则它们与 phpspec 相同）或“显式”模拟，您可以通过在 Prophet 对象上调用 prophesize 来获得。它们之间的唯一区别是“隐式”模拟是自动检查的，而“显式”模拟需要手动检查（$prophet->checkPredictions();）

【讨论】：

这有效，非常感谢您的澄清。