the project is a demo used to test for mockito and powermock;
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the mockito is the test framework to simulate real case to guide development， it is say，test drives development，or to demo for show and design，and so on； detail test example see the mockito package in src.test.java.
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Quote:https://github.com/powermock/powermock
the powermock is a framework that extends other mock libraries such as EasyMock with more powerful capabilities. PowerMock uses a custom classloader and bytecode manipulation to enable mocking of static methods, constructors, final classes and methods, private methods, removal of static initializers and more. By using a custom classloader no changes need to be done to the IDE or continuous integration servers which simplifies adoption. Developers familiar with the supported mock frameworks will find PowerMock easy to use, since the entire expectation API is the same, both for static methods and constructors. PowerMock aims to extend the existing API's with a small number of methods and annotations to enable the extra features. Currently PowerMock supports EasyMock and Mockito.
############################################################ before you use the demo, should own junit knowledge, and you can see the below link demo: