静态包

import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.*;
import static org.powermock.api.mockito.PowerMockito.*;

类

@RunWith(PowerMockRunner.class)
@PrepareForTest({YouStaticClass.class})

mock以及初始化

    /**
     * 使用 @InjectMocks, 测试对象
     */
    @InjectMocks
    private TestService ts;

    /**
     * 使用@mock，测试对象依赖的对象
     */
    @Mock
    private DependencyService ds;

    @Before
    public void before(){
    // 使模拟生效
        PowerMockito.mockStatic(YouStaticClass.class);
        MockitoAnnotations.initMocks(this);
    }