如何在 Android 项目的 Java 模块上使用 Mockito 2 模拟最终类? [英] How to mock final class with Mockito 2 on Java Module in Android project?

问题描述

我有一个 Android Clean Architecture 项目用 Kotlin 编写，包含 3 个模块:

• 数据(Android 库)
• domaine(Java 库)
• 演示文稿(Android 应用程序)

这 3 个模块每个都有用 junit 编写的单元测试.但是对于 Kotlin，默认情况下每个类都是 final 的.我很快就遇到了问题:如何使用 mockito 模拟 final 类

现在可以使用 Mockito 2

可以通过 mockito 扩展机制通过创建包含一行的文件 /mockito-extensions/org.mockito.plugins.MockMaker 来完成:

mock-maker-inline

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此解决方案在数据模块(Android 库)和演示模块(Android 应用程序)但不适用于我的域模块(Java 库).

我知道这个问题已经被问过了(如何模拟带有 mockito 的 final 类，模拟对象调用 final使用 Mockito 类静态方法)，但我没有找到我正在寻找的答案.

解决方案

您可以默认使用内联模拟方法，通过将您的 Gradle 依赖项从普通的 Mockito 依赖项更改:

编译org.mockito:mockito-core:$mockito_version"

...到以下内容:

编译org.mockito:mockito-inline:$mockito_version"

这样您就不必依赖使用资源文件夹中的文件"方法来激活内联模拟，我发现这种方法有时很不稳定.

I have a Android Clean Architecture project write in Kotlin with 3 modules:

• data (Android Library)
• domaine (Java Library)
• presentation (Android Application)

The 3 modules each have unit tests written with junit. But with Kotlin every class is final by default. I quickly had the problem: How to mock a final class with mockito

It's now possible with Mockito 2

It can be done via the mockito extension mechanism by creating the file /mockito-extensions/org.mockito.plugins.MockMaker containing a single line:

mock-maker-inline

This solution works very well on data module (Android Library) and presentation module (Android Application) but doesn't work on my domaine module (Java Library).

I know that this question has already been asked (How to mock a final class with mockito, Mock objects calling final classes static methods with Mockito), but I didn't find the answer I'm looking for.

解决方案

You can use the inline mocking method by default, by changing your Gradle dependency from the normal Mockito dependency:

compile "org.mockito:mockito-core:$mockito_version"

... to the following:

compile "org.mockito:mockito-inline:$mockito_version"

This way you won't have to rely on activating inline mocking with the "file in the resources folder" method, which I have found to be flaky sometimes.

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