jest-dynalite

jest-dynalite

Enchanced @shelf/jest-dynamodb

jest-dynalite is a fork of @shelf/jest-dynamodb used to allow unit tests to perform dynamodb queries locally.

Behaviour

jest-dynalite runs a dynalite instance per test runner, which means test runners do not interfear with eachother.

jest-dynalite clears tables between tests, so every test has a clean environment to run in.

Usage

yarn add jest-dynalite -D

jest.config.js

module.exports = {
  ...
  preset: "./jest-preset.js"
}

Create a jest-dynalite-config.json in your package root, which contain the tables which should exist for your tests.

{
  "tables": [
    {
      ...
    }
  ],
  "basePort": 8000
}

Usage

const ddb = new DocumentClient({
  ...yourConfig,
  ...(process.env.MOCK_DYNAMODB_ENDPOINT && {
    endpoint: process.env.MOCK_DYNAMODB_ENDPOINT,
    sslEnabled: false,
    region: "local"
  })
});

process.env.MOCK_DYNAMODB_ENDPOINT is unqiue to test runner

License

MIT