我如何通过IIFE测试IIFE中的私有方法？

Question

I have some IIFEs in my javascript code structured like:

function myIIFE() {
    function mtd1() {}
    function mtd2() {}
    function publicmtd1() {}

    return Object.freeze({
        publicmtd1: publicmtd1
    });
}

How can I test the private methods in this IIFE?

I know we are not supposed to test private methods and should move them to public methods if we need to test them.

I am just curious if this can be done. In Java, I am able to test private methods by using reflection to make the methods public and then test them. I am wondering if Javascript has something similar to reflection.

Update: Some of you have pointed that my example code is not an IIFE. You are right. I should have said module instead of IIFE.

Answer 1

IIFE (Immediately Invoked Function Expression) is a JavaScript function that runs as soon as it is defined.

Your example is not a IIFE , but anyways, you can't access the functions defined in the myIIFE closure, so therefore, in this shape, you can't test them.