Mockito 3.6: Using mockStatic in @Before or @BeforeClass with JUnit4

Question

Mockito 3.6 supports mocking static methods under a try-with-resources block as explained here.

Can someone let me know if static methods are mocked using Powermock in @Before or @BeforeClass can Mockito.mockStatic be used to replace them without an entire rewrite of the test class?

Answer 1

I think you might need to do a little bit of refactoring. You can create mocks of static methods by creating a MockedStatic variable at class level and use that in your tests and also sometimes it needs to be closed in the @After block, something like

MockedStatic<StaticClass> mockedStaticClass;
@Before
public void setUp()
{
  mockedStaticClass = Mockito.mockStatic(StaticClass.class);
}

@After
public void tearDown() throws Exception
{
  mockedStaticClass.close();
}

@Test
public void yourTest()
{
  //make use of mockedStatic variable you created earlier
}