Implement login command and access vuex store - vue.js

Question

I have a login process where after sending a request to the server and getting a response, I do this:
this.$auth.setToken(response.data.token);
this.$store.dispatch("setLoggedUser", {
username: this.form.username
});
Now I'd like to emulate this behavior when testing with cypress, so i don't need to actually login each time I run a test.
So I've created a command:
Cypress.Commands.add("login", () => {
cy
.request({
method: "POST",
url: "http://localhost:8081/api/v1/login",
body: {},
headers: {
Authorization: "Basic " + btoa("administrator:12345678")
}
})
.then(resp => {
window.localStorage.setItem("aq-username", "administrator");
});
});
But I don't know how to emulate the "setLoggedUser" actions, any idea?

Answer 1

In your app code where you create the vuex store, you can conditionally expose it to Cypress:
const store = new Vuex.Store({...})
// Cypress automatically sets window.Cypress by default
if (window.Cypress) {
window.__store__ = store
}
then in your Cypress test code:
cy.visit()
// wait for the store to initialize
cy.window().should('have.property', '__store__')
cy.window().then( win => {
win.__store__.dispatch('myaction')
})
You can add that as another custom command, but ensure you have visited your app first since that vuex store won't exist otherwise.

Answer 2

Step 1: Inside main.js provide the store to Cypress:
import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
Vue.config.productionTip = false
new Vue({
router,
store,
render: h => h(App)
}).$mount('#app')
if (window.Cypress) {
// Add `store` to the window object only when testing with Cypress
window.store = store
}
Step 2: Inside cypress/support/commands.js add a new command:
Cypress.Commands.add('login', function() {
cy.visit('/login') // Load the app in order `cy.window` to work
cy.window().then(window => { // .then() to make cypress wait until window is available
cy.wrap(window.store).as('store') // alias the store (can be accessed like this.store)
cy.request({
method: 'POST',
url: 'https://my-app/api/auth/login',
body: {
email: 'user#gmail.com',
password: 'passowrd'
}
}).then(res => {
// You can access store here
console.log(this.store)
})
})
})
Step 4: Inside cypress/integration create a new test
describe('Test', () => {
beforeEach(function() {
cy.login() // we run our custom command
})
it('passes', function() { // pass function to keep 'this' context
cy.visit('/')
// we have access to this.store in our test
cy.wrap(this.store.state.user).should('be.an', 'object')
})
})