jest-environment-mongodb-ephemeral

This package provides a wrapper around jest-environment-mongodb with the storageEngine setting preconfigured to ephemeralForTest.

This makes it possible to set the storage engine on a per test file basis via docblocks, without setting up Jest projects.

Installation

NPM

npm install --save-dev mongodb-memory-server jest-environment-mongodb-ephemeral

Yarn

yarn add --dev mongodb-memory-server jest-environment-mongodb-ephemeral

Usage

By adding a @jest-environment docblock at the top of a test file, you can specify mongodb-ephemeral to be used for all tests in that file:

/**
 * @jest-environment mongodb-ephemeral
 */

This overrides any environment set by testEnvironment in the Jest configuration file.

Additionally, any instance.storageEngine option provided by testEnvironmentOptions will be overridden with ephemeralForTest. All other options provided by testEnvironmentOptions will be in effect.