Run single JUnit test class multiple times with different instance variable values

Question

I have a JUnit test class whose every method will do something different based on the value of a local flag variable. Not that it matters too much but if the flag is true, the data gets saved in one format, if false it is saved in another, using a factory method to create an instance of the DAO object that is based on the flag. What I would like to do is not write two sets of tests considering that I only need to flip one switch.

I am running this in Maven. Is there a way to replicate the execution of this one test class while switching the value of the flag (using a setter?) between different test executions?

public class BifurcatedTest {

    private boolean formatFlag = false;

    @Test
    public void testGadgetOne(){
        Gadget gadg = new Gadget(1, "Gadget One");
        GadgetDAO gadgDAO = GadgetAccessFactory.getGadgetDAO(this.formatFlag);
        gadgDAO.save(gadg);
        assert(true);
    }

    @Test
    public void testGadgetTwo(){
        Gadget gadg = new Gadget(2, "Gadget Two");
        GadgetDAO gadgDAO = GadgetAccessFactory.getGadgetDAO(this.formatFlag);
        gadgDAO.save(gadg);
        assert(true);
    }

    public void setFormatFlag(boolean formatFlag) {
        this.formatFlag = formatFlag;
    }
}

UPDATE: I understand I could use a Suite and inject the variable through the constructor and then list the class twice in the suite declaration. But ideally, I would like to use an annotation something similar to

@MultiExec("formatFlag=true;formatFlag=false");

Before the class declaration and that Maven would understand that annotation and run it as many times and do the specified injection.

Answer 1

I think your requirement was similar as DataProvider in TestNG.

Which you can do it in JUnit as Writing Java tests with data providers.