Specflow/小 cucumber : How to handle bad data

Question

我是 Specflow 的新手，所以开始吧；

对于我下面的例子，我应该测试坏的吗？如果我这样做，表格不会让您添加错误的值。所以代码会出错，因为它以错误的类型出现。我想我只需要知道其他人如何处理验证用户不能输入错误数据？ (由于 secret 信息，字段名称已更改)要求说:

验证用户不能将比率设置为负数或大于1。比率范围是从0.9999到0。

验证用户不能输入超过 4 位小数的汇率。

Given the lc does not exist  
    | Lc      |
    | Test90  |  
    | Test00  | 

    When I add a Lc  
    | Lc      | Somekind of ID|  Rate     |
    | Test90  | 2             |  0.9999   |
    | Test00  | 4             |  0        |

    Then the lc should be defined
    | Lc      | 
    | Test90  |
    | Test00  | 

Answer 1

在整个测试过程中测试 2 个值有点奇怪。

我很想像这样重写:

Scenario Outline: valid lc's can be created
    Given the lc named <lc> does not exist  
    When I add a Lc named <lc> with Id <id> and rate <rate>
    Then the lc named <lc> should be defined
Examples:
        | Lc      | Id |  Rate     |
        | Test90  | 2  |  0.9999   |
        | Test00  | 4  |  0        |


Scenario Outline: Invalid lc's cannot be created
    Given the lc named <Lc> does not exist  
    When I add a Lc named <Lc> with Id <Id> and rate <Rate>
    Then the lc named <Lc> should not be defined
    And an error should have been raised saying the rate was invalid
Examples:
        | Lc      | ID |  Rate     |
        | Test90  | 2  |  1.999    |
        | Test90  | 2  |  0.99999  |
        | Test90  | 2  |  -0.9     |
        | Test00Y | 4  |  6        |
        | Test00Y | 4  |           |

And an error should have been raised saying the rate was invalid 这一步显然是可选的，但它表明由于无效率预计会失败。