error in setupnode events in data driven testing excel in cypress

Question

[![my code in config file][2]][2]

this is my error message

cy.task('parseXlsx') failed with the following error:

The 'task' event has not been registered in the setupNodeEvents method. You must register it before using cy.task()

Fix this in your setupNodeEvents method here:

this is my code in cypress.config.js , i have attached image of my code

how can solve this?

Answer 1

You have some legacy plugins coming from require(/cypress/plugins/index.js), which happens when someone has upgraded a project from Cypress v9 to Cypress v10 or higher.

Cypress changed the format of the configuration at v10, but generally that require() should still work the way it is.

But if by mistake /cypress/plugins/index.js has now been deleted, you will fail because tasks from it are not available.

It is better to migrate the task code into the new plugins section of cypress.config.js, in the future you can modify and debug them more easily.

Example task in Cypress v10+ configuration

const { defineConfig } = require('cypress')
const xlsx = require('node-xlsx').default;
const fs = require('fs'); 
const path = require('path'); 

function parseXlsx({ filePath }) {
  return new Promise((resolve, reject) => {
    try {
      const jsonData = xlsx.parse(fs.readFileSync(filePath));
        resolve(jsonData);
      } catch (e) {
        reject(e);
      }
    })
  }
}

module.exports = defineConfig({
  e2e: {
    setupNodeEvents(on, config) {
      on('task', {
        parseXlsx
      })
    }
  },
})