如何为控制器中的cakephp 3 Flash错误创建单元测试

use App\Controller\YourController;
use Cake\TestSuite\TestCase;

class ControllerTest extends TestCase
{
    protected $controller;

    public function setUp()
    {
        parent::setUp();
        $this->controller = new YourController();
    }
}

public function testFlashError()
{
    // 模拟需要测试的行为
    $this->controller->Flash->error('This is an error message.');

    // 断言期望的结果
    $this->assertSame('This is an error message.', $this->controller->viewVars['flash'][0]['message']);
    $this->assertSame('error', $this->controller->viewVars['flash'][0]['key']);
}

vendor/bin/phpunit