How to pass cypress parent variables through childs and returns them back

Question

i'm currently creating a few variables at the main file of my cypress automation.

parent file: cypress/testautomation/parent_file.spec.cy.js

var access_token; let _id; let QRCode; let access_token_QR; let uuid; let self; let payment;

I created another file that contains the actual automation which basically needs those variables to be executed inside of it.

child file: cypress/testautomation/child_file.spec.cy.js

There's a secondary child_file that use those variables too which leads into a problem because if i declare the variables at the parent file they won't be readed at the child file. and it returns this error:

Is there a way i can declare the variables at the parent file and use them inside the child files with this flow:

parent
var variableA = 10

child_1
use the variableA and change its value to 20.

child_2*
Get the variableA from child*1 which now is 20 and print that value in child_2

I made something like this already to test it out but i couldn't retrieve the variableA from the parent inside the child.

Main parent file: cypress/automation/parent_file.spec.cy.js

import { test1 } from "./test1"; import { test2 } from "./test2"; describe("Test suite", () => { var variableA = 10; child_one(); child_two(); });

Child file: cypress/automation/modules/child_one.spec.cy.js

export function child_one{ it("Can do something", () => { variableA = 20; }); }

Child file: cypress/automation/modules/child_two.spec.cy.js

export function child_one{ it("Can do something", () => { cy.log("variableA", variableA) }); }

user20487878 · Accepted Answer · 2022-11-12 21:17:21Z

Refer to Variables and Aliases

// child 1 export function child1 { it('a test in child 1', () => { cy.wrap(20).as('variableA') }); }

// child 2 export function child2 { it('a test in child 2', () => { cy.get('@variableA').then(variableA => { cy.log(variableA) }) }); }

Make sure you don't run the child tests independently, as you have introduced tight coupling (generally a bad thing).

Thanks for the response! i will follow your words and avoid coupling.

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