使用PHPUnit和Zend Framework测试异常的问题

public function testDivideByZero()
{
    $this->expectException(DivideByZeroException::class);
    $this->expectExceptionMessage('Division by zero');
    divide(10, 0);
}

use Zend\Test\PHPUnit\Controller\AbstractHttpControllerTestCase;

class UserControllerTest extends AbstractHttpControllerTestCase
{
    public function testLoginWithEmptyUsername()
    {
        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Username cannot be empty');
        $this->dispatch('/user/login', 'POST', ['password' => 'password']);
    }

    public function testLoginWithEmptyPassword()
    {
        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Password cannot be empty');
        $this->dispatch('/user/login', 'POST', ['username' => 'username']);
    }
}