A work in progress Jest plugin to work with discord.js. This will spin up a test bot that you can use to send test messages to a server and react to your bot's responses. In practice, it may look something like this:

describe('Ping', () => {
  test('response', async () => {
    const response = await prompt('ping');
    expect(response).toBeMessage('pong');
  });
});

This section is subject to extreme changes while the packages are developed and finalized!

There are two packages that are part of this system - packages/jest-discord includes the matcher and the logic for the test bot, and packages/jest-environment-discord includes the code to create a custom Jest environment.

You'll first need to create a Bot and Guild on Discord in order to use this project. The test bot will need admin permissions on the guild. You should then add the bot you'd like to test.

When running your tests, you'll need to have your bot running in a separate process.

The test bot will automatically create a unique test channel to run your tests in, and delete the channel when the test suite is finished.

$ npm install jest-discord jest-environment-discord --save-dev

Or

$ yarn add jest-discord jest-environment-discord --dev

You'll then need to tell Jest to use the Discord Environment - in your jest.config.json file, add the following parameters:

{
  "testEnvironment": "jest-environment-discord",
  "testEnvironmentOptions": {
    "testGuildId": "<GUILD_ID>"
  },
  "globalSetup": "./test.global.js",
  "setupTestFrameworkScriptFile": "./test.js",
  "roots": [
    "src/"
  ]
}

Replace <GUILD_ID> with the ID of your test guild

This tells Jest to load up the jest-environment-discord package for each test file, and tells the environment what Discord Guild to use as a test guild.

Your ./test.js file should import the custom matchers:

require('jest-discord/expect');

And your ./test.global.js should set your environmental variables.

jest-discord expects a process.env.TEST_BOT_TOKEN variable! The token provided will be used to control the test bot. Without one, the test suite cannot run.

Sends a message to a dedicated test channel. Returns a discord.js Message object that contains your bot's response. Will timeout and fail after 6 seconds.

Checks to see if the received message matches the given string exactly (uses .cleanContent from discord.js)

Checks to see if the message has one or more embeds

• [ ] Installation / Usage
• [ ] Documentation
• [ ] Simple Examples
• [ ] Figure out how to have multiple connections
• [ ] Figure out how to spawn a test instance of the real bot
• [ ] Additional Matchers
• [ ] Write Package READMEs