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Using the Built In Container for End to End Testing

This document provides general instructions for using @woocommerce/e2e-environment with the built in hosting container.

Prerequisites

Complete the setup instructions in each project/repository.

Initialization Requirements

The test sequencer uses a ready page to determine that the testing environment is ready for testing. This page is created by the built in initialization. It matches the following spec:

wp post create --post_type=page --post_status=publish --post_title='Ready' --post_content='E2E-tests.'

Project Initialization

Each project will have its own begin test state and initialization script. For example, a project might start testing expecting that the sample products have already been imported. Below is the WP CLI equivalent of the built in initialization script for WooCommerce Core E2E testing:

wp core install --url=http://localhost:8084 --admin_user=admin --admin_password=password --admin_email=wooadmin@example.org

Project specific initialization can be added through an executable file at tests/e2e/docker/initialize.sh. WooCommerce core's script is:

#!/bin/bash

echo "Initializing WooCommerce E2E"

wp plugin activate woocommerce
wp theme install twentynineteen --activate

Container Configuration

The built in container initialization needs to know the particulars of your test install to run the tests. The built in uses the following default settings:

{
  "url": "http://localhost:8084/",
  "appName": "{repository-folder-name}",
  "users": {
    "admin": {
      "username": "admin",
      "password": "password",
      "email": "admin@woocommercecoree2etestsuite.com"
    }
  }
}

You can override these in /tests/e2e/config/default.json.

The appName entry is optional. If present, it is used as a prefix for the docker container names.
The customer entry is not required by the sequencer but is required for the core test suite.
The test sequencer does not use the user account email addresses.

{
  "url": "http://localhost:8089/",
  "users": {
    "admin": {
      "username": "admin",
      "password": "password",
    },
    "customer": {
      "username": "customer",
      "password": "password",
    }
  }
}

Folder Mapping

The built in container defaults to mapping the root folder of the repository to a folder in the plugins folder. For example woocommerce is mapped to /var/www/html/wp-content/plugins/woocommerce. Use the WC_E2E_FOLDER_MAPPING environment variable to override this mapping.

Storefront Theme - WC_E2E_FOLDER_MAPPING=/var/www/html/wp-content/themes/storefront npm explore @woocommerce/e2e-environment -- npm run docker:up
Site Project - WC_E2E_FOLDER_MAPPING=/var/www/html/wp-content/plugins npm explore @woocommerce/e2e-environment -- npm run docker:up

Travis CI Supported Versions

Travis CI uses environment variables to allow control of some software versions in the testing environment. The built in container supports these variables:

WP_VERSION - WordPress (default latest)
TRAVIS_PHP_VERSION - PHP (default latest)
TRAVIS_MARIADB_VERSION - MariaDB (default latest)

Travis CI

To enable Travis CI testing in your repository add the following to the appropriate sections of your .travis.yml config file.

version: ~> 1.0

  include:
    - name: "Core E2E Tests"
    php: 7.4
    env: WP_VERSION=latest WP_MULTISITE=0 RUN_E2E=1

....

script:
  - npm install jest --global
  - npm explore @woocommerce/e2e-environment -- npm run docker:up
  - npm explore @woocommerce/e2e-environment -- npm run test:e2e

....

after_script:
  - npm explore @woocommerce/e2e-environment -- npm run docker:down

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