Mocking Static Blocks in Java

Question

My motto for Java is \"just because Java has static blocks, it doesn\'t mean that you should be using them.\" Jokes aside, there are a lot of tricks in Java that make testing a

Answer 1

I'm not super knowledgeable in Mock frameworks so please correct me if I'm wrong but couldn't you possibly have two different Mock objects to cover the situations that you mention? Such as

public static class MockClassWithEmptyStaticInit {
  public static void staticInit() {
  }
}

and

public static class MockClassWithStaticInit {
  public static void staticInit() {
    System.out.println("static initialized.");
  }
}

Then you can use them in your different test cases

@BeforeClass
public static void setUpBeforeClass() {
  Mockit.redefineMethods(ClassWithStaticInit.class, 
                         MockClassWithEmptyStaticInit.class);
}

and

@BeforeClass
public static void setUpBeforeClass() {
  Mockit.redefineMethods(ClassWithStaticInit.class, 
                         MockClassWithStaticInit.class);
}

respectively.