testing - Laravel 测试错误

Question

我刚开始学习如何在 Laravel 中进行测试。虽然我遇到了一些问题..我正在测试我的 Controller 并想检查 View 是否分配了变量。

我的 Controller 代码:

class PagesController extends \BaseController {

   protected $post;

   public function __construct(Post $post) {
      $this->post = $post;
   }

   public function index() {
      $posts = $this->post->all();
      return View::make('hello', ['posts' => $posts]);
   }
}

我的 View 包含一个 foreach 循环来显示所有帖子:

@foreach ($posts as $post)
   {{post->id}}
@endforeach

最后但同样重要的是我的测试文件:

class PostControllerTest extends TestCase {

public function __construct()
{
    // We have no interest in testing Eloquent
    $this->mock = Mockery::mock('Eloquent', 'Post');
}

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

public function testIndex() {

    $this->mock->shouldReceive('all')->once()->andReturn('foo');
    $this->app->instance('Post', $this->mock);
    $this->call('GET', '/');
    $this->assertViewHas('posts');

}

}

现在问题来了，当我运行“phpunit”时出现以下错误:

ErrorException:为 foreach() 提供的参数无效

知道为什么 phpunit 会返回这个错误吗？

Answer 1

你的问题在这里:

$this->mock->shouldReceive('all')->once()->andReturn('foo');

$this->post->all()(这是你在 mock 的)应该返回一个数组，这就是你的 View 所期望的。您正在返回一个字符串。

$this->mock->shouldReceive('all')->once()->andReturn(array('foo'));

应该处理您遇到的错误，尽管您随后会收到“获取非对象属性”类型的错误。

你可以这样做:

$mockPost = new stdClass();
$mockPost->id = 1;
$this->mock->shouldReceive('all')->once()->andReturn(array($mockpost));