Rewire a private function p0, but says: p0 not defined

Question

The main.js is like this

const p0 = (a, b) => (a+b)
const p1 = (a, b) => {
    return p0(a, b) + 10;
}
module.exports = { p1 }

The test code

const rewire = require('rewire');
const myMod = rewire('main');
    it('.test p0', async() => {
        const mockP0 = (a, b) => (a*b);

        myMod.__set__(p0, mockP0);
        return p1(2, 10);
    });

ReferenceError: p0 is not defined

I thought rewire can access private functions, how to solve this pls ? Thx !

score 2 · Accepted Answer · answered Nov 11 '20 at 23:24

2

First argument should be string or object.

Try

myMod.__set__('p0', mockP0);

or

myMod.__set__({p0: mockP0});

answered Nov 11 '20 at 23:24

vp_arth

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Now it says TypeError: Assignment to constant variable – user3552178 Nov 11 '20 at 23:27
1

Because there is not a magic here, it can't reassign const, change it into `let` or standalone `function` – vp_arth Nov 11 '20 at 23:28
1

well, changing to let works. But that defect the propose, i'm changing main code just for the test :( – user3552178 Nov 11 '20 at 23:31

Rewire a private function p0, but says: p0 not defined

1 Answers1