How to Mock a store with global variable - vue.js

I have a file that I'm using to store a global variable that gets changed by 'login' or 'logout' functions. I want to write a unit test that has the value of 'isLoggedIn' set to true or false, then checks for expected behaviour. I can't figure out what I need to do to be able to use the value, this is my file:
import Vue from 'vue';
import Vuex from 'vuex';
Vue.use(Vuex);
export default new Vuex.Store({
state: {
loggedIn: false,
},
mutations: {
login(state) {
state.loggedIn = true;
},
logout(state) {
state.loggedIn = false;
state.userID = null;
},
},
actions: {
login({ commit }) {
commit('login');
},
logout({ commit }) {
commit('logout');
},
},
getters: {
isLoggedIn: (state) => state.loggedIn,
},
});
And this is the test I'm trying to create:
import { expect } from 'chai';
import { shallowMount } from '#vue/test-utils';
import Home from '#/views/images.vue';
describe('Images.vue', () => {
it('shows that you are logged in', () => {
const welcome_text = 'You are logged in.';
this.$store.dispatch('login');
const wrapper = shallowMount(Home, {});
expect(wrapper.text()).to.include(welcome_text);
});
});

Your getter method isn't returning anything.
https://vuex.vuejs.org/guide/getters.html#property-style-access
Once you change your getter to:
getters: {
isLoggedIn: (state) => return state.loggedIn,
},
You should be able to retrieve this value using:
this.$store.getters.isLoggedIn

Related

errors: `unknown mutation type: setLoggedIn` & `unknown local mutation type: setLoggedIn, global type: auth/setLoggedIn`

two errors help me build with vuex modules
errors: unknown mutation type: setLoggedIn & unknown local mutation type: setLoggedIn, global type: auth/setLoggedIn
vuex version "vuex": "^4.0.0"
the problem occurs in the setLoggedInState(ctx) function
index.js
import Vuex from 'vuex'
import middleware from "./modules/middleware.js";
import auth from "./modules/auth";
export default new Vuex.Store({
namespaced: true,
modules: {
auth,
middleware
}
})
auth.js
const state = {
isLoggedIn: true,
};
const mutation = {
setLoggedIn(state, payload, ) {
state.isLoggedIn = payload;
},
};
const actions = {
setLoggedInState(ctx) {
return new Promise((resolve) => {
if (localStorage.getItem('token')) {
ctx.commit('setLoggedIn', true, {root: true});
resolve(true)
} else {
ctx.commit('setLoggedIn', false, {root: true});
resolve(false)
}
});
},
}
const getters = {
loggedIn(state) {
return state.isLoggedIn;
},
export default {
namespaced: true,
state,
mutation,
actions,
getters
}
Dashboard
import {mapActions} from 'vuex'
export default {
name: "Dashboard",
data: () => ({}),
created() {
this.checkUserState();
},
methods: {
...mapActions({
checkUserState: 'auth/setLoggedInState',
}),
I don’t understand how to fix errors I tried many ways I hope for your help
When you learn something new, please check for missing '; , .' etc.
And be sure that you write 'const mutations' not 'const mutation', following the documentation saving hours))

On component created hook call Action to fetch data from database and store it in state and then call Getter to get the data

So basically I have this component and I am using its created hook to fetch data using vue-resource and VUEX action, storing that data in store and right after that trying to get that data using VUEX getter but I am unable to do so. Any work around or I am doing something wrong. I am new to Vue!
Component:
import { mapActions } from 'vuex';
import { mapGetters } from 'vuex';
export default {
components: {
categoryHeader: CategoryHeader,
categoryFooter: CategoryFooter,
AddCategory
},
data() {
return {
openCatAdd: false,
categories: [],
pagination: []
}
},
methods: {
...mapActions([
'getCategories'
]),
...mapGetters([
'allCategories'
])
},
created() {
this.getCategories(1);
this.categories = this.allCategories();
// console.log(this.categories);
}
};
Store:
import Vue from "vue";
const state = {
categories: [],
};
const mutations = {
setCategories: (state, payload) => {
state.categories = payload;
}
};
const actions = {
getCategories: ({commit}, payload) => {
Vue.http.get('categories?page='+payload)
.then(response => {
return response.json();
})
.then(data => {
commit('setCategories', data.data);
}, error => {
console.log(error);
})
}
}
const getters = {
allCategories: state => {
console.log(state.categories);
return state.categories;
}
};
export default {
state,
mutations,
actions,
getters
};

vuex error with quasar $store.auth is undefined

I am trying to use vuex with Quasar. I have created an authentication module as below.
// src/store/auth/index.js
import { api } from 'boot/axios';
export default {
state: {
user: null,
},
getters: {
isAuthenticated: state => !!state.user,
StateUser: state => state.user,
},
mutations: {
setUser(state, username){
state.user = username
},
LogOut(state){
state.user = null
},
},
actions: {
LOGIN: ({ commit }, payload) => {
return new Promise((resolve, reject) => {
api
.post(`/api/login`, payload)
.then(({ data, status }) => {
if (status === 200) {
commit('setUser', data.refresh_token)
resolve(true);
}
})
.catch(error => {
reject(error);
});
});
},
}
}
I imported it in the store
// src/store/index.js
import { store } from 'quasar/wrappers'
import { createStore } from 'vuex'
import auth from './auth'
export default store(function (/* { ssrContext } */) {
const Store = createStore({
modules: {
auth:auth
},
// enable strict mode (adds overhead!)
// for dev mode and --debug builds only
strict: process.env.DEBUGGING
})
return Store
})
And I imported it into MainLayout to check if the user is logged in.
// src/layouts/MainLayout
<template>
</template>
<script>
import { ref, onMounted } from 'vue'
import packageInfo from '../../package.json'
import { useStore } from 'vuex'
export default {
name: 'MainLayout',
setup () {
const $store = useStore;
const connected = ref(false);
function checkLogin(){
//console.log($store)
return connected.value = $store.auth.isAuthenticated
};
onMounted(()=> {
checkLogin();
});
return {
appName: packageInfo.productName,
link:ref('dashboard'),
drawer: ref(false),
miniState: ref(true),
checkLogin,
}
}
}
</script>
But every time, I get the same error :
$store.auth is undefined
I tried to follow the quasar documentation, but I can't. Can anyone tell me what I am doing wrong please?
Thank you.
Someone helped me to find the solution. My error is to have written const $store = useStore instead of const $store = useStore(). Thanks

Vuejs with namespaced modules and unknow mutation type

i have created two store modules and I did the import into main store.
When I load my drawer view, I am getting the next error.
What am I doing wrong here
error:vuex.esm.js [vuex] unknown mutation type: SET_DRAWER
//Drawer.vue
.........
computed: {
...mapState("navstore", ["barColor", "barImage"]),
drawer: {
get() {
return this.$store.state.navstore.drawer;
},
set(val) {
this.$store.commit("SET_DRAWER", val);
},
},
computedItems() {
return null;
//this.items.map(this.mapItem);
},
profile() {
return {
avatar: true,
title: "Gestan",
};
},
},
methods: {},
.........
.........
//store/index.js
import Vue from "vue";
import Vuex from "vuex";
import { default as auth } from ".auth";
import { default as navstore } from "./navStore";
Vue.use(Vuex);
export default new Vuex.Store({
modules: { auth: auth, navstore: navstore },
});
//navstore.js
import Vue from "vue";
import Vuex from "vuex";
Vue.use(Vuex);
const SET_BAR_IMAGE = "NAVSTORE/SET_BAR_IMAGE";
const SET_DRAWER = "NAVSTORE/SET_DRAWER";
export default {
namespaced: true,
state: {
barColor: "rgba(0, 0, 0, .8), rgba(0, 0, 0, .8)",
barImage:
"https://demos.creative-tim.com/material-dashboard/assets/img/sidebar-1.jpg",
drawer: null,
},
mutations: {
[SET_BAR_IMAGE](state, payload) {
state.barImage = payload;
},
[SET_DRAWER](state, payload) {
state.drawer = payload;
},
},
actions: {
actionSetDrawer({ commit }, payload) {
commit(SET_DRAWER, payload);
},
},
};
//auth.js
import Vue from "vue";
import Vuex from "vuex";
import * as storage from "#/store/storage";
import services from "#/services/api/AuthenticationService";
Vue.use(Vuex);
const SET_USER = "AUTH/SET_USER";
const SET_TOKEN = "AUTH/SET_TOKEN";
export default {
namespaced: true,
state: {
token: null,
user: null,
isUserLoggedIn: false,
},
mutations: {
[SET_TOKEN](state, token) {
state.token = token;
state.isUserLoggedIn = !!token;
},
[SET_USER](state, user) {
state.user = user;
},
},
getters: {
isAuthenticated: (state) => !!state.token,
// authStatus: state => state.status
},
actions: {
actionDoLogin({ dispatch }, payload) {
return services.login(payload).then((res) => {
dispatch("actionSetUser", res.data.user);
dispatch("actionSetToken", res.data.token);
});
},
};
You need to remove prefixes with slash from mutation names because your modules namespaced and you will always access this mutations outside indicating a module name like this moduleName/mutation.
For instance:
const SET_BAR_IMAGE = "NAVSTORE/SET_BAR_IMAGE";
const SET_DRAWER = "NAVSTORE/SET_DRAWER";
// should be
const SET_BAR_IMAGE = "SET_BAR_IMAGE";
const SET_DRAWER = "SET_DRAWER";
Because the SET_DRAWER mutation is inside a navspaces module you should call it indicating a module name:
this.$store.commit("navstore/SET_DRAWER", val);
Don't try to call actions inside actions like this:
actionDoLogin({ dispatch }, payload) {
return services.login(payload).then((res) => {
dispatch("actionSetUser", res.data.user);
dispatch("actionSetToken", res.data.token);
});
},
Use mutations in a desired combination:
actionDoLogin({ dispatch }, payload) {
return services.login(payload).then((res) => {
commit(SET_USER, res.data.user);
commit(SET_TOKEN, res.data.token);
});
},

Vue.js test-utils How to mock getters from module

In my ContactForm component , I have 2 computed mapGetters
computed: {
...mapGetters(["language"]),
...mapGetters("authentication", ["loading"]),
the first one is defined in my stoe/getters.js
export const language = state => {
return state.language;
};
the second one is defined in my store/modules/authentication.js
const authentication = {
namespaced: true,
getters: {
user: state => {
return state.user
},
loading: state => {
return state.loading
}
},
I am trying to mock my Vuex store , easy for the first one "language",
export const storeMock = Object.freeze({
state: {},
actions: {},
getters: {
language: () => { . // <= FINE
return "en";
},
authentication: { . // <= . WRONG
loading: () => {
return false;
}
}
}
})
but how should I mock the second one "loading" from the "authentication" module ??
If you console log the store in the app, namespaced getters have a key of namespace/getterName, so I think this should work
export const storeMock = Object.freeze({
state: {},
actions: {},
namespaced: true,
getters: {
language: () => { // <= FINE
return "en";
},
'authentication/loading' : () => {
return false;
}
}
})