在 PHPUnit 中调用未定义的方法 decodeResponseJson()

Question

我尝试运行简单的验证测试：

private function orderTickets($concert, $params)
{
    $this->json('POST', "/concerts/{$concert->id}/orders", $params);

}

 /** @test */

public function email_is_required_to_purchase_tickets()
{


    $concert = factory(Concert::class)->create();

    $this->orderTickets($concert, [

        'ticket_quantity' => 3,
        'payment_token' => $this->paymentGateway->getValidTestToken()
    ]);

    $this->assertResponseStatus(422);

    $this->assertArrayHasKey('email', $this->decodeResponseJson());

}

在最后一行我需要断言 json 有密钥 'email'。但是当我运行它时，我收到这条消息：

Error: Call to undefined method Tests\Feature\PurchaseTicketsTest::decodeResponseJson()

我是否需要将任何东西导入我的 Laravel 项目才能正常工作？

好像完全不知道这个方法

我在Laravel 7

Answer 1

decodeResponseJson 是 Illuminate\Testing\TestResponse 的一部分，而不是 TestCase。我将您的 orderTickets 方法更改为 return 响应，以便可以在测试中使用它。

private function orderTickets($concert, $params): TestResponse
{
    return $this->json('POST', "/concerts/{$concert->id}/orders", $params);
}

/** @test */
public function email_is_required_to_purchase_tickets()
{
    $concert = factory(Concert::class)->create();

    $response = $this->orderTickets($concert, [
        'ticket_quantity' => 3,
        'payment_token' => $this->paymentGateway->getValidTestToken()
    ]);

    self::assertEquals(422, $response->getStatusCode());
    self::assertArrayHasKey('email', $response->decodeResponseJson());
}

Answer 2

我正在学习与您相同的“测试驱动 Laravel”课程，由于该课程是为 Laravel 5.x 编写的，所以我遇到了同样的问题。使用较新的 Laravel 7 测试函数实际上有更方便的方法来解决这个问题。无需解码响应并使用 assertArrayHasKey 检查它，您可以直接在响应上调用 assertJsonValidationErrors（响应已经继承自 \lluminate\Testing\TestResponse）。这是该测试函数的完整代码...

    /** @test */
    public function email_is_required_to_purchase_tickets(){

        $paymentGateway = new FakePaymentGateway;
        // Bind the FakePaymentGateway class to the PaymentGateway interface 
        // so we can type hint the interface in the controller methods. This
        // should probably be moved to a service provider though. 
        $this->app->instance(PaymentGateway::class, $paymentGateway);

        // Create a concert
        $concert = factory(Concert::class)->create();

        // Purchase concert tickets
        $this->json('POST', "/concerts/{$concert->id}/orders", [
            'ticket_quantity' => 3,
            'payment_token' => $paymentGateway->getValidTestToken(),
        ]);

        // Laravel uses response code 422 for validation error responses
        $this->assertResponseStatus(422);

        // Assert that the json response contains an email validation error. 
        $this->response->assertJsonValidationErrors('email');

    }

在 PHPUnit 中调用未定义的方法 decodeResponseJson()

Call to undefined method decodeResponseJson() in PHPUnit

phpunit

laravel