Installation

// with yarn
yarn add -D altv-jest-mocks

// with npm
npm i -D altv-jest-mocks

You need to setup a manual Jest mock (recommended):

• create __mocks__ directory in your project root
• create a file alt-server.js inside the __mocks__ folder
• create a manual jest mock

// ./__mocks__/alt-server.js
const { mockServer } = require('altv-jest-mocks');
module.exports = mockServer;

the same for another alt:V modules/natives

// ./__mocks__/alt-client.js
const { mockClient } = require('altv-jest-mocks');
module.exports = mockClient;

// ./__mocks__/natives.js
const { mockNatives } = require('altv-jest-mocks');
module.exports = mockNatives;

OR you can specify the direct path to mocks in your jest.config.js (not recommended):

moduleNameMapper: {
  'alt-client': '<rootDir>/node_modules/altv-jest-mocks/lib/mocks/alt-client.js',
  'alt-server': '<rootDir>/node_modules/altv-jest-mocks/lib/mocks/alt-server.js',
  'natives': '<rootDir>/node_modules/altv-jest-mocks/lib/mocks/natives.js',
}

Basic example

// ./src/example.ts
import alt from 'alt-server';

export const someFunction = () => {
  if (alt.isInDebug()) {
    return alt.emit('some event', true);
  }

  alt.setMeta('key', false);
};

// ./src/__tests__/example.test.ts
import alt from 'alt-server';
import { someFunction } from '../example';

beforeEach(() => {
  jest.clearAllMocks();
});

describe('someFunction', () => {
  test('should emit some event', () => {
    (alt.isInDebug as jest.Mock).mockReturnValue(true);

    someFunction();

    expect(alt.emit).toBeCalledWith('some event', true);
  });

  test('should set meta with some data', () => {
    (alt.isInDebug as jest.Mock).mockReturnValue(false);

    someFunction();

    expect(alt.setMeta).toBeCalledWith('key', false);
  });
});