react-jest

Role | Name | Email | Slack ---- | ---- | ----- | ----- Product Owner | Frances Haugen | [email protected] | [@frances] Maintainer | Mark Miyashita | [email protected] | [@mark]

Overview

Adds the Jest testing framework to a React or React Native app. This includes:

• Dependencies
• A default jest.config.js that works for both React and React Native
• [Optional] Basic tests to make sure the app is functional as well as included snapshot tests

Usage

Specification

Name | Status | Description ---- | ------ | ----------- generateTests | true/false | Set to true if you would like generated tests to be created for you for the app.

Dependencies

This module works with the create-react-app block located here.

Examples

There's one example for this package:

1. with-tests - This example is generated with generateTests: true so it has the infrastructure as well as generated tests.

Troubleshooting

Testing

Module tests are defined using a test/scenarios.yaml file. This file defines the set of example gigs that we generate as part of integration testing. To run all tests, run yarn test at the root of this module.

Each scenario is generated in test/scenario/<name> which you can then cd into and run the actual app. For a scenario called with-tests, this is done via:

cd test/scenario/with-tests
yarn install

# Run tests.
yarn test

# Start the app.
yarn start