Hi all, I'm trying to solve this problem for multiple days but can't figure it out. I'm trying to write unit tests for a (server side) user event script. sample code:

define(['N/runtime'], function(runtimeModule){

    // this line will run on import and get executed before "{ beforeSubmit, }" is returned
	const SCRIPT_VAR = runtimeModule.getCurrentScript().getParameter({name: "custscript_script_var"});
    
    function beforeSubmit(context){
      //....
	}
    return { beforeSubmit, }
})

unit-test code:

import runtimeModule from 'N/runtime';

// the test errors is at this line 
// script == { beforeSubmit: beforeSubmit }
import script from 'script.js' 

jest.mock('N/runtime');

beforeEach(() => {
	jest.clearAllMocks();
});

describe('some description', () => {
	it('some description', () => {

	});
});

when I run this test I get this error:

TypeError: runtimeModule.getCurrentScript is not a function

note: • moving

runtimeModule

function in the

beforeSubmit

function is not a possible solution for me, as we have many scripts with similar formatting and I don't not what to modify scripts for the test to work • setting

jest.mock('script.js', {() => jest.fn(() => {})})

will make the test pass but

beforeSubmit

will be mocked as well. and I need the un-mocked version of

beforeSubmit

in order to test it. • setting

jest.mock('script.js', () => ({ beforeSubmit: jest.requireActual('script.js'), runtimeModule: () => jest.fn(() => {}), }));

is going to error, because calling

jest.requireActual('script.js')

is going to call

runtimeModule.getCurrentScript

function. If anyone would be able to help I would greatly appreciate it. Thank You!

You don't want to mock

script.js

(I'm not even sure what that is); you want to mock

N/runtime

. There are examples of mocking SuiteScript modules in the README that will probably give you a good starting point.

Thank you eric for your reply! as you can see in the sample test script that i'm mocking the

N/runtime

module, but it still errors. it seems to me that

jest.mock

only mocks after import, but in my case

runtimeModule.getCurrentScript

is being called during the import therefore it errors (i might be wrong with my explanation but i believe it to be the reason of erroring). (ps. the

script.js

script is the user event script thats uploaded to NetSuite)