Mockito 可以在不考虑参数的情况下存根方法吗?

问题描述

我正在尝试使用 Mockito 测试一些遗留代码.

I'm trying to test some legacy code, using Mockito.

我想存根一个在生产中使用的 FooDao，如下所示:

I want to stub a FooDao that is used in production as follows:

foo = fooDao.getBar(new Bazoo());

我会写:

when(fooDao.getBar(new Bazoo())).thenReturn(myFoo);

但明显的问题是 getBar() 永远不会使用我为方法存根的相同 Bazoo 对象调用.(诅咒那个 new 运算符！)

But the obvious problem is that getBar() is never called with the same Bazoo object that I stubbed the method for. (Curse that new operator!)

如果我能以一种不管参数如何都返回 myFoo 的方式对方法进行存根，我会很高兴的.如果做不到这一点，我会听取其他解决方法的建议，但我真的很想避免更改生产代码，直到有合理的测试覆盖率.

I would love it if I could stub the method in a way that it returns myFoo regardless of the argument. Failing that, I'll listen to other workaround suggestions, but I'd really like to avoid changing the production code until there is reasonable test coverage.

推荐答案

when(
  fooDao.getBar(
    any(Bazoo.class)
  )
).thenReturn(myFoo);

或(避免nulls):

when(
  fooDao.getBar(
    (Bazoo)notNull()
  )
).thenReturn(myFoo);

别忘了导入匹配器(还有很多其他的可用):

Don't forget to import matchers (many others are available):

对于 Mockito 2.1.0 及更新版本:

For Mockito 2.1.0 and newer:

import static org.mockito.ArgumentMatchers.*;

对于旧版本:

import static org.mockito.Matchers.*;

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