I am having problems trying to test a viewChild on Angular with Jest.
Here my .ts component:
import { MurQueryViewComponent } from '../../shared/components/mur-query-view/mur-query-view.component';
#ViewChild(MurQueryViewComponent) private consultQuery!: MurQueryViewComponent;
This is the method Im trying to test. The method I can not access is applyTransaction
newVolatility() {
this.dialogSrv
.setDialogAction({
component: VolatilityActionComponent,
data: {
actionType: 'Alta',
},
})
.subscribe((res) => {
if (!res) return;
res.attributes.id = res.id;
this.consultQuery.agGrid.api.applyTransaction({
add: [res.attributes],
});
this.dialogSrv.setAlert({ type: 'success', msg: 'message_new_success' });
});
}
Here my .spec.ts:
This is the test that try to prove that previous methos is been call with same arguments:
it('Method newVolatility', () => {
const sonDebugElement = fixture.debugElement.query(By.directive(MurQueryViewComponent));
const sonComponent: MurQueryViewComponent = sonDebugElement.componentInstance;
component['consultQuery'] = sonComponent;
const SpySetItems= jest.spyOn(component['consultQuery'].agGrid.api, 'applyTransaction');
const SpyDialogAlert= jest.spyOn(component['dialogSrv'], 'setAlert');
component['dialogSrv'].setDialogAction = () => {
return of(mockRow);
}
component.newVolatility();
expect(SpySetItems).toBeCalledWith({add: [mockNewRow]});
expect(SpyDialogAlert).toBeCalledWith({ type: 'success', msg: 'message_new_success' });
});
Here the error on terminal:
Anyone could please let me know how to access a viewChild, witch is a whole component and access to its methos?
Related
I need to switch out my backend in-memory DB for testing due to memory issues. Below is my code
import { fireEvent, render, screen, waitFor } from "#testing-library/react";
import userEvent from "#testing-library/user-event";
import App from "App";
import axios from "axios";
import MockAdapter from "axios-mock-adapter";
import { AccessLevel, ResponseApi, SystemUserApi } from "types";
let mock: MockAdapter;
beforeAll(() => {
mock = new MockAdapter(axios);
});
afterEach(() => {
mock.reset();
});
beforeEach(() => {
jest.resetModules();
});
describe("<App />", () => {
test("login", async () => {
mock.onPost('/Hello').reply(200, getPost);
const result = render(<App />);
const user = userEvent.setup();
const btnLogin = screen.getByText(/Login/i) as HTMLButtonElement;
await userEvent.click(btnLogin);
let btnOk = screen.queryByText(/OK/i) as HTMLButtonElement;
expect(btnOk.disabled).toBe(true);
let btnCancel = screen.getByText(/Cancel/i) as HTMLButtonElement;
expect(btnCancel.disabled).toBe(false);
fireEvent.change(screen.getByLabelText(/Access Code/i) as HTMLInputElement, { target: { value: 'USER' } });
expect(btnOk.disabled).toBe(false);
await userEvent.click(btnOk);
//At this point I was expecting the onPost to be clicked
});
});
function getPost(config: any): any {
console.log(config);
debugger;
return {
data: {
access_code: 'USER'.toUpperCase(),
access_level: AccessLevel.USER ,
lock_level:true
} as SystemUserApi,
error: false,
} as ResponseApi
}
Deep down in the is a call axios post to /Hello but my function within the test is not called. I do not know if it has to do with the actual call being axios.request vs axios.post. I have tried switching to mock.onAny, but that did not seem to work. Not sure what to do here.
I am having vue3 app with vite and vitest and trying to mock the Quasar useQuasar composable which I am using in my custom Composable like:
// useLoginRequestBuilder.ts
import { makeUserAuthentication } from "#/main/factories"
import { useQuasar } from "quasar"
export function useLoginRequestBuilder() {
const $q = useQuasar()
async function login() {
try {
$q.loading.show()
const auth = makeUserAuthentication()
return await auth.signinRedirect()
} catch (e) {
console.log(e)
$q.loading.hide()
$q.notify({
color: "red-4",
textColor: "white",
icon: "o_warning",
message: "Login Failed!",
})
}
}
return {
login,
}
}
and I am trying to mock quasar in tests like:
// useLoginRequestBuilder.spec.ts
import { useLoginRequestBuilder } from "#/main/builders"
vi.mock("quasar", () => ({ // <--- this is not really mocking quasar
useQuasar: () => ({
loading: {
show: () => true,
hide: () => true,
},
}),
}))
const spyAuth = vi.fn(() => Promise.resolve(true))
vi.mock("#/main/factories", () => ({
makeUserAuthentication: () => ({
signinRedirect: () => spyAuth(),
}),
}))
describe("test useLoginRequestBuilder", () => {
test("should call signinRedirect", async () => {
const { login } = useLoginRequestBuilder()
const sut = await login()
expect(sut).toBe(true)
})
})
vi.mock("quasar"... is failing to mock quasar and I am getting below error. That means, it failed to mock and failed to get the $q.loading.... object.
TypeError: Cannot read properties of undefined (reading 'loading')
I understand that there is a separate testing lib for quasar, here but I think this is not really the case here.
Bordering on a necro-post, but I had a similar issue that the mocking factory wasn't creating the plugins being used in non-Vue components, and had to mock each call individually in the end.
Though I'd add it here for anyone else
vitest.mock("quasar", () => vi.fn()); // this doesn't mock out calls
// use individual mocks as below
import { Loading } from "quasar";
vi.spyOn(Loading, "show").mockImplementation(() => vi.fn());
vi.spyOn(Loading, "hide").mockImplementation(() => vi.fn());
I'm new to testing and im trying to write some unit tests for my Vue app. The problem is that vitest givesno output and I cant figure out what is wrong. Any help would be apriciated.
describe('UserForm', () => {
it('renders component properly', async () => {
const viewId = "123"
render(UserForm, {
props: {
open: true
}
})
const view = await screen.findByText('Kontrahent')
expect(view.id).toBe(viewId)
})
})
I run the test with this command
vitest --environment jsdom
Have you tried to do something like:
import { mount } from "#vue/test-utils";
// in the describe
const wrapper = mount(Login, {
props: {
open: true
},
});
it("mounts the component", () => {
expect(wrapper.html()).toContain("Kontrahent");
});
Hello I have checked the behaviour in application and it works with same data from api as I'm providing in mocked api call Api.contracts.getContractDetails.mockImplementationOnce(() => ({ data })); However, the value of hasWatermark computed is false - while it should be true.
How can I debug this? Is it possible to check computed in tests? This is my test:
function createWrapper() {
const i18n = new VueI18n({
locale: "en",
missing: jest.fn(),
});
return mount(EmployeeContract, {
i18n,
localVue,
store,
mocks: { $route: { query: {}, params: { id: "123" } }, $buefy: { toast: { open: jest.fn() } } },
stubs: ["spinner", "router-link", "b-switch"],
});
it("should add watermark for preview once it has rejected status", async () => {
const data = singleContract;
Api.contracts.getContractDetails.mockImplementationOnce(() => ({ data }));
const wrapper = createWrapper();
await flushPromises();
expect(wrapper.vm.hasWatermark).toBeTruthy();
});
I'm testing a Single file component that uses vue router to watch $route. The problem is that I can't get the test to both change the route and trigger the watcher's function.
The test file:
import { createLocalVue, shallow } from 'vue-test-utils';
import Vue from 'vue';
import Vuex from 'vuex';
const localVue = createLocalVue();
localVue.use(Vuex);
const $route = {
path: '/my/path',
query: { uuid: 'abc' },
}
wrapper = shallow({
localVue,
store,
mocks: {
$route,
}
});
it('should call action when route changes', () => {
// ensure jest has a clean state for this mocked func
expect(actions['myVuexAction']).not.toHaveBeenCalled();
vm.$set($route.query, 'uuid', 'def');
//vm.$router.replace(/my/path?uuid=def') // tried when installing actual router
//vm.$route.query.uuid = 'def'; // tried
//vm.$route = { query: { uuid: 'def'} }; // tried
expect(actions['myVuexAction']).toHaveBeenLastCalledWith({ key: true });
});
My watch method in the SFC:
watch: {
$route() {
this.myVuexAction({ key: true });
},
},
How do you mock router in such a way that you can watch it and test the watch method is working as you expect?
This is how I'm testing a watch on route change that adds the current route name as a css class to my app component:
import VueRouter from 'vue-router'
import { shallowMount, createLocalVue } from '#vue/test-utils'
import MyApp from './MyApp'
describe('MyApp', () => {
it('adds current route name to css classes on route change', () => {
// arrange
const localVue = createLocalVue()
localVue.use(VueRouter)
const router = new VueRouter({ routes: [{path: '/my-new-route', name: 'my-new-route'}] })
const wrapper = shallowMount(MyApp, { localVue, router })
// act
router.push({ name: 'my-new-route' })
// assert
expect(wrapper.find('.my-app').classes()).toContain('my-new-route')
})
})
Tested with vue#2.6.11 and vue-router#3.1.3.
I checked how VueRouter initializes $route and $router and replicated this in my test. The following works without using VueRouter directly:
const localVue = createLocalVue();
// Mock $route
const $routeWrapper = {
$route: null,
};
localVue.util.defineReactive($routeWrapper, '$route', {
params: {
step,
},
});
Object.defineProperty(localVue.prototype, '$route', {
get() { return $routeWrapper.$route; },
});
// Mock $router
const $routerPushStub = sinon.stub();
localVue.prototype.$router = { push: $routerPushStub };
const wrapper = shallowMount(TestComponent, {
localVue,
});
Updating $route should always be done by replacing the whole object, that is the only way it works without using a deep watcher on $route and is also the way VueRouter behaves:
$routeWrapper.$route = { params: { step: 1 } };
await vm.wrapper.$nextTick();
Source: install.js
Its working for me
let $route = {
name: 'any-route',
};
We defined a $route and we called like
wrapper = mount(YourComponent, {
mocks: {
$route,
},
});
and my componente is like this
#Watch('$route', { deep: true, immediate: true, })
async onRouteChange(val: Route) {
if (val.name === 'my-route') {
await this.getDocumentByUrl();
await this.allDocuments();
}
};
pd: I use typescript, but this work with the another format
and finally my test
it('my test', ()=>{
const getDocumentByUrl = jest.spyOn(wrapper.vm, 'getDocumentByUrl');
const allDocuments = jest.spyOn(wrapper.vm, 'allDocuments');
wrapper.vm.$route.name = 'my-route';
await flushPromises();
expect(getDocumentByUrl).toHaveBeenCalled();
expect(allDocuments).toHaveBeenCalled();
})
The way to do this actually is to use vue-test-utils wrapper method, setData.
wrapper.setData({ $route: { query: { uuid: 'def'} } });