单元测试 Laravel FormRequest

我正在尝试对各种自定义进行单元测试FormRequest输入。我找到的解决方案是：

1. 建议使用$this->call(…)方法并断言response与预期值（答案链接） https://stackoverflow.com/questions/29794549/how-to-test-form-request-rules-in-laravel-5。这是多余的，因为它创建了对Routing and 控制器.

2. 泰勒检验，由Laravel 框架 found in https://github.com/laravel/framework/blob/5.2/tests/Foundation/FoundationFormRequestTest.php tests/Foundation/FoundationFormRequestTest.php。那里有很多嘲笑和开销。

我正在寻找一种解决方案，可以根据规则对各个字段输入进行单元测试（独立于同一请求中的其他字段）.

样本表格请求：

public function rules()
{
    return [
        'first_name' => 'required|between:2,50|alpha',
        'last_name'  => 'required|between:2,50|alpha',
        'email'      => 'required|email|unique:users,email',
        'username'   => 'required|between:6,50|alpha_num|unique:users,username',
        'password'   => 'required|between:8,50|alpha_num|confirmed',
    ];
}

所需测试：

public function testFirstNameField()
{
   // assertFalse, required
   // ...

   // assertTrue, required
   // ...

   // assertFalse, between
   // ...
}

public function testLastNameField()
{
    // ...
}

我如何进行单元测试(assert)每个字段的每个验证规则都是孤立且单独的吗？

我找到了一个很好的解决方案Laracast https://laracasts.com/discuss/channels/testing/how-to-test-custom-validation-rules-in-laravel-5?page=1并添加了一些定制的组合。

The Code

/**
 * Test first_name validation rules
 * 
 * @return void
 */
public function test_valid_first_name()
{
    $this->assertTrue($this->validateField('first_name', 'jon'));
    $this->assertTrue($this->validateField('first_name', 'jo'));
    $this->assertFalse($this->validateField('first_name', 'j'));
    $this->assertFalse($this->validateField('first_name', ''));
    $this->assertFalse($this->validateField('first_name', '1'));
    $this->assertFalse($this->validateField('first_name', 'jon1'));
}

/**
 * Check a field and value against validation rule
 * 
 * @param string $field
 * @param mixed $value
 * @return bool
 */
protected function validateField(string $field, $value): bool
{
    return $this->validator->make(
        [$field => $value],
        [$field => $this->rules[$field]]
    )->passes();
}

/**
 * Set up operations
 * 
 * @return void
 */
public function setUp(): void
{
    parent::setUp();

    $this->rules     = (new UserStoreRequest())->rules();
    $this->validator = $this->app['validator'];
}

Update

有一个e2e解决同一问题的方法。你可以POST要检查有问题的路线的数据，然后查看响应是否包含会话错误.

$response = $this->json('POST', 
    '/route_in_question', 
    ['first_name' => 'S']
);
$response->assertSessionHasErrors(['first_name']);