I am using vue-i18n plugin for my Vue3(typescript) application. Below is my setup function in component code
Home.vue
import {useI18n} from 'vue-i18n'
setup() {
const {t} = useI18n()
return {
t
}
}
Main.ts
import { createI18n } from 'vue-i18n'
import en from './assets/translations/english.json'
import dutch from './assets/translations/dutch.json'
// internationalization configurations
const i18n = createI18n({
messages: {
en: en,
dutch: dutch
},
fallbackLocale: 'en',
locale: 'en'
})
// Create app
const app = createApp(App)
app.use(store)
app.use(router)
app.use(i18n)
app.mount('#app')
Code works and compiles fine. But jest test cases fails for the component when it's mounting
Spec file
import { mount, VueWrapper } from '#vue/test-utils'
import Home from '#/views/Home.vue'
import Threat from '#/components/Threat.vue'
// Test case for Threats Component
let wrapper: VueWrapper<any>
beforeEach(() => {
wrapper = mount(Home)
// eslint-disable-next-line #typescript-eslint/no-empty-function
jest.spyOn(console, 'warn').mockImplementation(() => { });
});
describe('Home.vue', () => {
//child component 'Home' existance check
it("Check Home component exists in Threats", () => {
expect(wrapper.findComponent(Home).exists()).toBe(true)
})
// Threat level list existance check
it("Check all 5 threat levels are listed", () => {
expect(wrapper.findAll('.threat-level .level-wrapper label')).toHaveLength(5)
})
})
Below is the error
Please help me to resolve this.
The vue-18n plugin should be installed on the wrapper during mount with the global.plugins option:
import { mount } from '#vue/test-utils'
import { createI18n } from 'vue-i18n'
import Home from '#/components/Home.vue'
describe('Home.vue', () => {
it('i18n', () => {
const i18n = createI18n({
// vue-i18n options here ...
})
const wrapper = mount(Home, {
global: {
plugins: [i18n]
}
})
expect(wrapper.vm.t).toBeTruthy()
})
})
GitHub demo
You can also define the plugin globally in the setup/init file:
import { config } from '#vue/test-utils'
import { createI18n } from 'vue-i18n'
const i18n = createI18n({
// vue-i18n options here ...
})
config.global.plugins = [i18n]
config.global.mocks.$t = (key) => key
Related
I'm using fastify-cli for building my server application.
For testing I want to generate some test JWTs. Therefore I want to use the sign method of the fastify-jwt plugin.
If I run the application with fastify start -l info ./src/app.js everything works as expected and I can access the decorators.
But in the testing setup I get an error that the jwt decorator is undefined. It seems that the decorators are not exposed and I just can't find any error. For the tests I use node-tap with this command: tap \"test/**/*.test.js\" --reporter=list
app.js
import { dirname, join } from 'path'
import autoload from '#fastify/autoload'
import { fileURLToPath } from 'url'
import jwt from '#fastify/jwt'
export const options = {
ignoreTrailingSlash: true,
logger: true
}
export default async (fastify, opts) => {
await fastify.register(jwt, {
secret: process.env.JWT_SECRET
})
// autoload plugins and routes
await fastify.register(autoload, {
dir: join(dirname(fileURLToPath(import.meta.url)), 'plugins'),
options: Object.assign({}, opts),
forceESM: true,
})
await fastify.register(autoload, {
dir: join(dirname(fileURLToPath(import.meta.url)), 'routes'),
options: Object.assign({}, opts),
forceESM: true
})
}
helper.js
import { fileURLToPath } from 'url'
import helper from 'fastify-cli/helper.js'
import path from 'path'
// config for testing
export const config = () => {
return {}
}
export const build = async (t) => {
const argv = [
path.join(path.dirname(fileURLToPath(import.meta.url)), '..', 'src', 'app.js')
]
const app = await helper.build(argv, config())
t.teardown(app.close.bind(app))
return app
}
root.test.js
import { auth, build } from '../helper.js'
import { test } from 'tap'
test('requests the "/" route', async t => {
t.plan(1)
const app = await build(t)
const token = app.jwt.sign({ ... }) //-> jwt is undefined
const res = await app.inject({
method: 'GET',
url: '/'
})
t.equal(res.statusCode, 200, 'returns a status code of 200')
})
The issue is that your application diagram looks like this:
and when you write const app = await build(t) the app variable points to Root Context, but Your app.js contains the jwt decorator.
To solve it, you need just to wrap you app.js file with the fastify-plugin because it breaks the encapsulation:
import fp from 'fastify-plugin'
export default fp(async (fastify, opts) => { ... })
Note: you can visualize this structure by using fastify-overview (and the fastify-overview-ui plugin together:
I'm working on appling prisma unit testing and Integration testing
I want to apply unit testing for *.service.test.ts files
and intergration testing for *.test.ts files.
I followed the Prisma document, but there is something that doesn't work.
singleton.ts
import { mockReset, mockDeep, DeepMockProxy } from "jest-mock-extended";
import { PrismaClient } from "#prisma/client";
import Prisma from "../src/db/prisma";
jest.mock("../src/db/prisma", () => {
return {
__esModule: true,
default: mockDeep<PrismaClient>(),
};
});
beforeEach(() => {
// eslint-disable-next-line no-use-before-define
mockReset(prismaMock);
});
export const prismaMock = Prisma as unknown as DeepMockProxy<PrismaClient>;
jest.config.ts
When turing off setupFilesAfterEnv option, testing *.test.ts files are working.
So I Want turn off setupFilesAfterEnv option in Integration testing
Is it applicable only when unit testing?
...
setupFilesAfterEnv: [
"./jest/singleton.ts"
]
I think your question is a bit incomplete, but I might know what you are talking about because I am running into a similar problem.
If you are trying to do the integration tests from prisma documentation, you need to unmock your prisma client on your integration tests. Otherwise it will still be mocked by your singleton.ts file
something like this:
myTest.test.js (integration test file)
jest.unmock("../src/db/prisma");
Another way of doing it, is just to remove the singleton from setupFilesAfterEnv and just import the prisma client from the singleton file inside your tests.
What I did:
I created 2 tests files (one for integration and another one for unit testing: CreateData.unit.test.ts and CreateData.int.test. I also created 2 singleton files:
singleton.unit.ts (I wanted that to be applied on my unit tests)
import { PrismaClient } from '#prisma/client';
import { mockDeep, mockReset, DeepMockProxy, mock } from 'jest-mock-extended';
import prismaClient from '../prismaClient';
jest.mock('../prismaClient', () => ({
__esModule: true,
default: mockDeep<PrismaClient>(),
}));
beforeEach(() => {
mockReset(prismaMock);
});
export const prismaMock = prismaClient as unknown as DeepMockProxy<PrismaClient>;
singleton.int.ts (I wanted that applied in my integration tests)
import prismaClient from '../prismaClient';
afterAll(async () => {
const deleteData = prismaClient.data.deleteMany();
await prismaClient.$transaction([
deleteData,
]);
await prismaClient.$disconnect();
});
export { prismaClient };
I removed setupFilesAfterEnv from jest.config.js
Then create your unit tests and integration tests. You don't need to unmock prisma client if you removed the singleton from setupFilesAfterEnv in jest.config.ts
myTest.unit.test.ts
import { prismaMock } from "<path>/singleton.unit";
import { CreateData } from "<path>/CreateData";
let createData;
let createDate = new Date();
const data = {
id: "randomId1234",
name: "Bob Singer",
email: "bob#gmail.com",
password: "123456",
};
beforeEach(() => {
createData = new CreateData();
});
describe('CreateData', () => {
it("should create new data", async () => {
const result = createData.execute(data);
prismaMock.data.create.mockResolvedValue(data);
await expect(result).resolves.toEqual({
id: "randomId1234",
name: "Bob Singer",
email: "bob#gmail.com",
password: "123456",
});
});
});
myTest.int.test.ts
import prismaClient from "<path>/singleton.int";
import { CreateData } from "<path>/CreateData"
let createData;
let createDate = new Date();
const data = {
id: "randomId1234",
name: "Bob Singer",
email: "bob#gmail.com",
password: "123456",
};
beforeEach(() => {
createData = new CreateData();
});
describe('CreateTrainer', () => {
it("should create new trainer", async () => {
const result = await createData.execute(data);
const newData = await prismaClient.data.findUnique({
where: {
email: "bob#gmail.com"
}
});
console.log(result);
expect(newData?.email).toEqual(data.email);
});
});
I am trying to use React and Easybase (database). I'm having some issues however.
This is in the SolanaSignature.tsx file.
import { useWallet } from '#solana/wallet-adapter-react';
import bs58 from 'bs58';
import React, { FC, useCallback } from 'react';
import ReactDOM from 'react-dom';
import { sign } from 'tweetnacl';
import AddUser from './mainstorage';
export const SignMessageButton : FC = () => {
const { publicKey, signMessage } = useWallet();
const onClick = useCallback(async () => {
try {
if (!publicKey) throw new Error('Wallet not connected!');
if (!signMessage) throw new Error('Wallet does not support message signing! Please use a wallet such as Phantom or Solflare! NOTE: Some Ledgers wallets are not supported!');
const message = new TextEncoder().encode('Omega Protocol - Signature verification for Bold Badgers.');
const signature = await signMessage(message);
if (!sign.detached.verify(message, signature, publicKey.toBytes())) throw new Error('Invalid signature!');
//alert(`Message signature: ${bs58.encode(signature)}`);
AddUser();
} catch (error: any) {
alert(`Signing failed: ${error?.message}`);
}
}, [publicKey, signMessage]);
return signMessage ? (<button className="wallet-adapter-button wallet-adapter-button-trigger shine" onClick={onClick} disabled={!publicKey}>Verify</button>) : null;
};
and then the mainstorage file:
import { useEffect } from 'react';
import { useEasybase } from 'easybase-react';
const AddUser = () => {
const { db } = useEasybase();
useEffect(() => {
db('OMEGABB').insert({ walletid: "test", discordid: "test", signature: "test", valid: false, lastvalid: new Date() }).one()
.then(() => console.log("Success!"));
}, [])
return (
{/* ... */}
);
}
export default AddUser;
What is happening however when I click the button is that it comes up with a warning: Hooks can only be called inside the body of a function component.
This does work in the initial index file (aka the parent file) but does not work here. Right now this is only a dummy/test but trying to get it writing to the database.
Thanks!
As per React's documentation:
Don’t call Hooks inside loops, conditions, or nested functions. Instead, always use Hooks at the top level of your React function, before any early returns.
Currently, you're attempting to call a hook inside the onClick handler - AddUser is a custom hook since it also uses hooks and the better name for it should be useAddUser.
I suggest to make some improvements by returning a function from your custom hook that you can call to add a new user, e.g.:
export const useAddUser = () => {
const {db} = useEasybase()
const addUser = React.useCallback(() => {
db('OMEGABB')
.insert(/*...*/)
.then(/*...*/)
.catch(/*...*/)
}, [db])
return {
addUser,
/*...*/
}
}
Then, you can use useAddUser in the following way:
const {useAddUser} from './mainstorage'
const SignMessageButton: FC = () => {
const {publicKey, signMessage} = useWallet()
const {addUser} = useAddUser();
const onClick = React.useCallback(
async () => {
try {
// ...
addUser()
} catch (error) {/*...*/}
},
[publicKey, signMessage, addUser]
)
/*...*/
}
Testing libs...always fun. I am using next-i18next within my NextJS project. We are using the useTranslation hook with namespaces.
When I run my test there is a warning:
console.warn
react-i18next:: You will need to pass in an i18next instance by using initReactI18next
> 33 | const { t } = useTranslation(['common', 'account']);
| ^
I have tried the setup from the react-i18next test examples without success. I have tried this suggestion too.
as well as just trying to mock useTranslation without success.
Is there a more straightforward solution to avoid this warning? The test passes FWIW...
test('feature displays error', async () => {
const { findByTestId, findByRole } = render(
<I18nextProvider i18n={i18n}>
<InviteCollectEmails onSubmit={jest.fn()} />
</I18nextProvider>,
{
query: {
orgId: 666,
},
}
);
const submitBtn = await findByRole('button', {
name: 'account:organization.invite.copyLink',
});
fireEvent.click(submitBtn);
await findByTestId('loader');
const alert = await findByRole('alert');
within(alert).getByText('failed attempt');
});
Last, is there a way to have the translated plain text be the outcome, instead of the namespaced: account:account:organization.invite.copyLink?
Use the following snippet before the describe block OR in beforeEach() to mock the needful.
jest.mock("react-i18next", () => ({
useTranslation: () => ({ t: key => key }),
}));
Hope this helps. Peace.
use this for replace render function.
import { render, screen } from '#testing-library/react'
import DarkModeToggleBtn from '../../components/layout/DarkModeToggleBtn'
import { appWithTranslation } from 'next-i18next'
import { NextRouter } from 'next/router'
jest.mock('react-i18next', () => ({
I18nextProvider: jest.fn(),
__esmodule: true,
}))
const createProps = (locale = 'en', router: Partial<NextRouter> = {}) => ({
pageProps: {
_nextI18Next: {
initialLocale: locale,
userConfig: {
i18n: {
defaultLocale: 'en',
locales: ['en', 'fr'],
},
},
},
} as any,
router: {
locale: locale,
route: '/',
...router,
},
} as any)
const Component = appWithTranslation(() => <DarkModeToggleBtn />)
const defaultRenderProps = createProps()
const renderComponent = (props = defaultRenderProps) => render(
<Component {...props} />
)
describe('', () => {
it('', () => {
renderComponent()
expect(screen.getByRole("button")).toHaveTextContent("")
})
})
I used a little bit more sophisticated approach than mocking to ensure all the functions work the same both in testing and production environment.
First, I create a testing environment:
// testing/env.ts
import i18next, { i18n } from "i18next";
import JSDomEnvironment from "jest-environment-jsdom";
import { initReactI18next } from "react-i18next";
declare global {
var i18nInstance: i18n;
}
export default class extends JSDomEnvironment {
async setup() {
await super.setup();
/* The important part start */
const i18nInstance = i18next.createInstance();
await i18nInstance.use(initReactI18next).init({
lng: "cimode",
resources: {},
});
this.global.i18nInstance = i18nInstance;
/* The important part end */
}
}
I add this environment in jest.config.ts:
// jest.config.ts
export default {
// ...
testEnvironment: "testing/env.ts",
};
Sample component:
// component.tsx
import { useTranslation } from "next-i18next";
export const Component = () => {
const { t } = useTranslation();
return <div>{t('foo')}</div>
}
And later on I use it in tests:
// component.test.tsx
import { setI18n } from "react-i18next";
import { create, act, ReactTestRenderer } from "react-test-renderer";
import { Component } from "./component";
it("renders Component", () => {
/* The important part start */
setI18n(global.i18nInstance);
/* The important part end */
let root: ReactTestRenderer;
act(() => {
root = create(<Component />);
});
expect(root.toJSON()).toMatchSnapshot();
});
I figured out how to make the tests work with an instance of i18next using the renderHook function and the useTranslation hook from react-i18next based on the previous answers and some research.
This is the Home component I wanted to test:
import { useTranslation } from 'next-i18next';
const Home = () => {
const { t } = useTranslation("");
return (
<main>
<div>
<h1> {t("welcome", {ns: 'home'})}</h1>
</div>
</main>
)
};
export default Home;
First, we need to create a setup file for jest so we can start an i18n instance and import the translations to the configuration. test/setup.ts
import i18n from "i18next";
import { initReactI18next } from "react-i18next";
import homeES from '#/public/locales/es/home.json';
import homeEN from '#/public/locales/en/home.json';
i18n.use(initReactI18next).init({
lng: "es",
resources: {
en: {
home: homeEN,
},
es: {
home: homeES,
}
},
fallbackLng: "es",
debug: false,
});
export default i18n;
Then we add the setup file to our jest.config.js:
setupFilesAfterEnv: ["<rootDir>/test/setup.ts"]
Now we can try our tests using the I18nextProvider and the useTranslation hook:
import '#testing-library/jest-dom/extend-expect';
import { cleanup, render, renderHook } from '#testing-library/react';
import { act } from 'react-dom/test-utils';
import { I18nextProvider, useTranslation } from 'react-i18next';
import Home from '.';
describe("Index page", (): void => {
afterEach(cleanup);
it("should render properly in Spanish", (): void => {
const t = renderHook(() => useTranslation());
const component = render(
<I18nextProvider i18n={t.result.current.i18n}>
<Home / >
</I18nextProvider>
);
expect(component.getByText("Bienvenido a Pocky")).toBeInTheDocument();
});
it("should render properly in English", (): void => {
const t = renderHook(() => useTranslation());
act(() => {
t.result.current.i18n.changeLanguage("en");
});
const component = render(
<I18nextProvider i18n={t.result.current.i18n}>
<Home/>
</I18nextProvider>
);
expect(component.getByText("Welcome to Pocky")).toBeInTheDocument();
});
});
Here we used the I18nextProvider and send the i18n instance using the useTranslation hook. after that the translations were loaded without problems in the Home component.
We can also change the selected language running the changeLanguage() function and test the other translations.
I want to test Vibration module of react-native, the problem is that I get an error when I try to test it:
With this component:
import React, { useEffect } from 'react';
import { Text, Vibration } from 'react-native';
interface Props {}
export const MyComponent = (props: Props) => {
useEffect(() => Vibration.vibrate(1), []);
return (
<Text>asdaf</Text>
);
};
And this test file:
// #ts-nocheck
import React from 'react';
import { render } from '#testing-library/react-native';
import { NativeModules } from 'react-native';
import { MyComponent } from '../../../src/modules/MyComponent';
describe('MyComponent', () => {
it('alpha', () => {
const { debug } = render(<MyComponent/>);
expect(true).toBeTruthy();
});
});
I get this error:
Invariant Violation: TurboModuleRegistry.getEnforcing(...): 'Vibration' could not be found. Verify that a module by this name is registered in the native binary.
I tried to mock react-native like this:
// #ts-nocheck
import React from 'react';
import { render } from '#testing-library/react-native';
import { NativeModules } from 'react-native';
import { ChatRoomContainer } from '../../../src/modules/ChatRoom';
// Mock NativeModules
jest.mock('react-native', () => ({
...jest.requireActual('react-native'),
Vibration: {
vibrate: jest.fn()
},
__esModule: true
}));
describe('MyComponent', () => {
it('alpha', () => {
const { debug } = render(<ChatRoomContainer/>);
expect(true).toBeTruthy();
});
});
But then I get a ton of warnings related to old modules that should no longer be used:
Warning: CheckBox has been extracted from react-native core and will be removed in a future release. It can now be installed and imported from '#react-native-community/checkbox' instead of 'react-native'. See https://github.com/react-native-community/react-native-checkbox
Warning: DatePickerIOS has been merged with DatePickerAndroid and will be removed in a future release. It can now be installed and imported from '#react-native-community/datetimepicker' instead of 'react-native'. See https://github.com/react-native-community/datetimepicker
What is the best way to test such functionality (like Vibration) of react-native then?
Thanks in advance for you time!
You can mock react-native using the library path, like this:
const mockedVibrate = jest.fn();
jest.mock('react-native/Libraries/Vibration/Vibration', () => ({
vibrate: mockedVibrate,
}));