wp-env does not properly mount /wordpress-phpunit in GitLab CI (tests-wordpress)

Hi everyone,

I’m running into an issue when using @wordpress/env (wp-env) in a GitLab CI/CD pipeline to run PHPUnit tests.

The test runner inside the tests-wordpress container fails with the following error:

Could not find /wordpress-phpunit/includes/functions.php, have you run install-wp-tests.sh ?

gitlab-ci.yml

stages:
  - test

.parallel:
  parallel:
    matrix:
      - PHP_VERSION: ['8.2']
        WP_VERSION: ['6.6']

.installApkDependencies: &installApkDependencies |
  apk add --no-cache \
      shadow \
      nodejs \
      npm \
      unzip \
      git \
      su-exec \
      curl \
      php${PHP_VERSION/./} \
      php${PHP_VERSION/./}-curl \
      php${PHP_VERSION/./}-phar \
      php${PHP_VERSION/./}-mbstring \
      php${PHP_VERSION/./}-iconv \
      php${PHP_VERSION/./}-openssl \
      php${PHP_VERSION/./}-dom \
      php${PHP_VERSION/./}-xml \
      php${PHP_VERSION/./}-xmlwriter \
      php${PHP_VERSION/./}-tokenizer \
      php${PHP_VERSION/./}-json \
      php${PHP_VERSION/./}-fileinfo \
      php${PHP_VERSION/./}-simplexml \
      php${PHP_VERSION/./}-xmlreader \
      php${PHP_VERSION/./}-zip \
      unzip \
      php${PHP_VERSION/./}-ctype \
      php${PHP_VERSION/./}-zlib
      

.installcomposer: &installcomposer |
  curl -sS https://getcomposer.org/installer -o composer-setup.php
  php composer-setup.php --install-dir=/usr/local/bin --filename=composer
  rm -rf composer-setup.php

test:
  stage: test
  image: docker:28.0.4
  services:
    - name: docker:28.0.4-dind
  variables:
    DOCKER_HOST: tcp://docker:2375
    DOCKER_TLS_CERTDIR: ""
  before_script:
    - *installApkDependencies

    - "[ -f /usr/bin/php ] || ln -s /usr/bin/php${PHP_VERSION/./} /usr/bin/php"

    - *installcomposer

    - adduser -D -u 1000 wpuser
    - chown -R wpuser:wpuser .
  
    - su-exec wpuser composer install
    - su-exec wpuser npm ci

  script:
    - echo "🚀 Testing PHP ${PHP_VERSION} on WP ${WP_VERSION}" 
    - su-exec wpuser sh -c "WP_ENV_CORE=\"WordPress/WordPress#${WP_VERSION}\" npm run env:start-ci"
    - su-exec wpuser sh -c "npm run env:path"
    - su-exec wpuser sh -c "npm run env run tests-wordpress composer update -- -W --working-dir=wp-content/plugins/plugin-test-ci/"
    - su-exec wpuser sh -c "npm run env run tests-wordpress composer update -- --dev yoast/phpunit-polyfills -W --working-dir=wp-content/plugins/plugin-test-ci/"
    - su-exec wpuser sh -c "npm run test:php"


  after_script:
    - echo "AFTER SCRIPT"
    - su-exec wpuser npm run env:stop || true
    - echo "y" | su-exec wpuser npm run env:destroy || true
  parallel: !reference [.parallel,parallel]
  resource_group: parallel

Questions:

1. Is this a known issue with wp-env?

2. Is there a recommended way to run wp-env PHP tests inside CI/CD pipelines (other than GitHub Actions)?

3. Any example .gitlab-ci.yml setups available for wp-env + PHPUnit?