单元测试形式豆良好的模式，具有基于注解的验证Spring MVC中 [英] Good patterns for unit testing form beans that have annotation-based validation in Spring MVC

问题描述

在使用基于注解验证了表单bean，什么是最好的做法单元测试，以确保注释为每个字段指定了正确验证这些bean？

When using annotation based validation for a form bean, what is the best practice for unit-testing those beans in order to ensure that correct validations annotations are specified for each field?

例如，如果您有：

public class MyForm {
    @NotNull
    private String name;
}

什么是验证 @NotNull 适用于它的最佳方式？

一个显而易见的方法是创建一个验证器，它抛出一个空，并希望它失败。但在我看来，这是不是最好的方式，你会使用的是测试 @NotNull 的行为和执行，而不是信任的框架。

One obvious way is to create a validator, throw a null at it and expect it to fail. But in my view this is not the best way as you'll be testing the behaviour and implementation of @NotNull using that rather than trusting the framework.

理想我想使用反射或实用工具，给我的只是声称一个 @NotNull （和任何其他）验证适用于某一领域的可能性，而不是发送验证失败的值的各种组合。

Ideally I would want to use reflection or a utility that gives me the possibility of just asserting that an @NotNull (and any other) validation is applied to a given field, rather than having to send various combination of values that fail validation.

是否有这样做的一个优雅的方式，还是我在正确的轨道上有什么看法？

Is there an elegant way of doing this, or am I on the right track in general?

推荐答案

您也可以编写单元测试你的bean这些注释JSR303使用验证器厂全光照。
见例如：
<一href=\"http://musingsofaprogrammingaddict.blogspot.com/2009/02/using-bean-validation-with-spring.html\" rel=\"nofollow\">http://musingsofaprogrammingaddict.blogspot.com/2009/02/using-bean-validation-with-spring.html

You can also write unit tests for your Beans which are annotated usin JSR303 using validator factory. See example: http://musingsofaprogrammingaddict.blogspot.com/2009/02/using-bean-validation-with-spring.html

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