Checking the results of a Factory in a unit test

Question

I have developed some classes with similar behavior, they all implement the same interface. I implemented a factory that creates the appropriate object and returns the inte

Answer 1

if (myNewObject instanceof CorrectClass)
{
    /* pass test */
}

update:

Don't know why this got marked down, so I'll expand it a bit...

public void doTest()
{
    MyInterface inst = MyFactory.createAppropriateObject();
    if (! inst instanceof ExpectedConcreteClass)
    {
        /* FAIL */
    }
}