BDD 和表单字段

Question

我读过示例规范和几篇 BDD 文章，它们都说要避免功能描述和场景中的特定表单字段之类的细节。但是，如果示例中没有说明我们需要哪些表单字段以及哪些验证是合适的，那么它在哪里呢？

我正在考虑将所有表单字段放入场景中，并为每个验证设置一个场景。看起来开销很大；有没有更好的办法？

编辑：例如，采用以下内容。

Feature: Add new product

In order to sell a new product on our website
As an internal user
I want to add the product to our catalog

Scenario: Successful addition

Given I am logged in
When I try to add a new product
And I provide "Widget" as the name
And I provide 1 lb. as the weight
And I provide 1 inch as the height
And I provide 2 inches as the width
And I provide 3 inches as the length
Then I see the new product that was added

Scenario: Duplicate name

Given I am logged in
And an existing product named "Dupe"
When I try to add a new product
And I provide "Dupe" as the name
Then I see a duplicate name error

Scenario: Invalid Weight

Given I am logged in
When I try to add a new product
And I provide -1 as the weight
Then I see an invalid weight error

Scenario: Invalid Height

Given I am logged in
When I try to add a new product
And I provide -1 as the height
Then I see an invalid height error

Scenario: Invalid Width

Given I am logged in
When I try to add a new product
And I provide -1 as the width
Then I see an invalid width error

Scenario: Invalid Length

Given I am logged in
When I try to add a new product
And I provide -1 as the length
Then I see an invalid length error

Answer 1

关键是从场景中删除与特定测试无关的所有内容。它们只是分散注意力的噪音。详细信息应在步骤定义中。

例如，我们以这个为例：

Scenario: Successful addition

Given I am logged in
When I try to add a new product
And I provide "Widget" as the name
And I provide 1 lb. as the weight
And I provide 1 inch as the height
And I provide 2 inches as the width
And I provide 3 inches as the length
Then I see the new product that was added

这里有很多重复，而且它在风格上根本不是“对话式”的——你不会用这样的语言来解释它是如何工作的。给出了具体尺寸，但没有任何原因 - 您将进行其他测试来检查尺寸边界。这里没有测试尺寸。您可以轻松地将其更改为：

Given I am logged in
When I try to add a new product named "Widget"
And specify the weight and dimensions
Then I see the new product that was added

这更接近您向其他人描述测试的方式，并隐藏步骤定义中的详细信息。