php - 在 Mockery 中测试链式方法调用

Question

我正在尝试在 Controller 中正确模拟对 Eloquent 模型的链式调用。在我的 Controller 中，我使用依赖注入(inject)来访问模型，以便模拟它应该很容易，但是我不确定如何测试链接调用并使其正常工作。这一切都在 Laravel 4.1 中使用 PHPUnit 和 Mockery。

Controller :

<?php

class TextbooksController extends BaseController
{
    protected $textbook;

    public function __construct(Textbook $textbook)
    {
        $this->textbook = $textbook;
    }

    public function index()
    {
        $textbooks = $this->textbook->remember(5)
            ->with('user')
            ->notSold()
            ->take(25)
            ->orderBy('created_at', 'desc')
            ->get();

        return View::make('textbooks.index', compact('textbooks'));
    }
}

---

Controller 测试:

<?php

class TextbooksControllerText extends TestCase
{
    public function __construct()
    {
        $this->mock = Mockery::mock('Eloquent', 'Textbook');
    }

    public function tearDown()
    {
        Mockery::close();
    }

    public function testIndex()
    {
        // Here I want properly mock my chained call to the Textbook
        // model.

        $this->action('GET', 'TextbooksController@index');

        $this->assertResponseOk();
        $this->assertViewHas('textbooks');
    }
}

---

我一直试图通过将这段代码放在测试中的 $this->action() 调用之前来实现这一点。

$this->mock->shouldReceive('remember')->with(5)->once();
$this->mock->shouldReceive('with')->with('user')->once();
$this->mock->shouldReceive('notSold')->once();
$this->app->instance('Textbook', $this->mock);

但是，这会导致错误 Fatal error: Call to a member function with() on a non-object in/app/controllers/TextbooksController.php on line 28。

我还尝试了一个链式替代方案，希望它能起到作用。

$this->mock->shouldReceive('remember')->with(5)->once()
    ->shouldReceive('with')->with('user')->once()
    ->shouldReceive('notSold')->once();
$this->app->instance('Textbook', $this->mock);

用 Mockery 测试这个链式方法调用的最佳方法是什么。

Answer 1

最初是一条评论，但后来为了让代码清晰可读而移动到回答!

我倾向于@alexrussell's answer同样，尽管中间立场是:

$this->mock->shouldReceive('remember->with->notSold->take->orderBy->get')
    ->andRe‌​turn($this->collection);