如何在Eclipse中使用JUnit4测试jar文件？

Question

I need to black box test a jar file provided to me.

I've created a new project and added the jar file, let's call it test.jar to the build path. I don't know how I'm supposed to access the methods to test them because it is a jar file instead of a java file.

How can I create a JUnit test case that can access the methods of the jar so I can test them?

Answer 1

If the JAR file is in your project you should be able to test it just like you would test classes that you had the source code for. Create test classes for the classes in the JAR and create test cases for the public methods of those classes.

If you're using Eclipse, you should be able to expand the Referenced Libraries entry in the Package Explorer window to see what the package structure of the JAR is, and what classes and methods there are.

Answer 2

您可以为任何其他类创建单元测试的方式相同：导入类，实例化对象并调用其方法。

Answer 3

Simply add the library ( test.jar ) to the classpath (build path). If you see it in the package explorer and in your on project, right click and you should find some Add to build path..