dongliuxia9495 2019-01-29 15:42
浏览 49
已采纳

PHPUnit使用dataProvider返回“数据集#0无效。”

This simple class return

1) Warning The data provider specified for App\Tests\Twig\GenerateTokenTest::testGenerateToken is invalid. Data set #0 is invalid.

class GenerateTokenTest extends TestCase
{
    /**
     * @dataProvider provideToken
     */
    public function testGenerateToken(int $length): void
    {
        $token = GenerateToken::generate($length);

        $this->assertTrue(true);
    }

    public function provideToken(): iterable
    {
        yield 8;
        yield 16;
        yield 29;
    }
}

Do you know why ?

  • 写回答

1条回答 默认 最新

  • doulan9287 2019-01-29 15:57
    关注

    If you use data providers for PhpUnit, they expect that an array of data is returned on each call. This inner array should match the input variables for your test method. So, if it has that single argument $length, the data provider should return an array containing the test input, like yield [8];

    If the test method uses more than a single input variable - you've probably guessed it already: the array should contain more values. As an example, based on your code:

    class GenerateTokenTest extends TestCase
    {
        /**
         * @dataProvider provideToken
         */
        public function testGenerateToken(int $length, int $size): void
        {
            $token = GenerateToken::generate($length);
    
            $this->assertTrue(true);
        }
    
        public function provideToken(): iterable
        {
            yield [8, 9];
            yield [16, 17];
            yield [29, 30];
        }
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 求差集那个函数有问题,有无佬可以解决
  • ¥15 MATLAB动图问题
  • ¥15 【提问】基于Invest的水源涵养
  • ¥20 微信网友居然可以通过vx号找到我绑的手机号
  • ¥15 寻一个支付宝扫码远程授权登录的软件助手app
  • ¥15 解riccati方程组
  • ¥15 display:none;样式在嵌套结构中的已设置了display样式的元素上不起作用?
  • ¥15 使用rabbitMQ 消息队列作为url源进行多线程爬取时,总有几个url没有处理的问题。
  • ¥15 Ubuntu在安装序列比对软件STAR时出现报错如何解决
  • ¥50 树莓派安卓APK系统签名