PHPUnit的数据提供程序超出范围

Question

类我测试：

class Calculate { 
    public $x; 
    public $y; 

    public function __construct($x, $y) { 
     $this->x = $x; 
     $this->y = $y; 
    } 

    public function add(): int { 
     return $this->x + $this->y; 
    } 
} 

我的测试代码：

use PHPUnit\Framework\TestCase; 

class CalculateTest extends TestCase { 

    public function additionProvider() { 
     return [ 
      [1, 2], 
      [5, 8], 
      [-1, 10], 
      [66, 3], 
      [9, 4] 
     ]; 
    } 

    /** 
    * @dataProvider additionProvider 
    */ 
    public function testGetIsOk($x, $y): Calculate { 
     $c = new Calculate($x, $y); 
     var_dump($c); 
     $this->assertEquals($x, $c->x); 
     $this->assertEquals($y, $c->y); 

     return $c; 
    } 

    /** 
    * @depends testGetIsOk 
    */ 
    public function testAddIsNormal(Calculate $c):void { 
     $this->assertEquals($c->x + $c->y, $c->add()); 
    } 



} 

有dataProvider中的5个元素，但测试结果表明，6号测试是错误的。

PHPUnit 6.3.0 by Sebastian Bergmann and contributors.

.....E 6/6 (100%)

Time: 97 ms, Memory: 8.00MB

There was 1 error:

1) CalculateTest::testAddIsNormal TypeError: Argument 1 passed to CalculateTest::testAddIsNormal() must be an inst ance of Calculate, null given

谢谢。

Answer 1

好的，我在github上检查了这个问题，最后我知道我无法将从数据提供者获取数据的测试结果传递给另一个测试。 有它：https://github.com/sebastianbergmann/phpunit/issues/611