Use wp-env for PHP unit test

.github/workflows/pr-checks.yml

@@ -45,9 +45,45 @@ jobs:
               if: success() || failure()
               run: npm run lint:pkg-json
 
+    compute-previous-wordpress-version:
+        name: Compute previous WordPress version
+        runs-on: ubuntu-latest
+        permissions: {}
+        outputs:
+            previous-wordpress-version: ${{ steps.get-previous-wordpress-version.outputs.previous-wordpress-version }}
+
+        steps:
+            - name: Get previous WordPress version
+              id: get-previous-wordpress-version
+              run: |
+                  curl \
+                    -H "Accept: application/json" \
+                    -o versions.json \
+                    "http://api.wordpress.org/core/stable-check/1.0/"
+                  LATEST_WP_VERSION="$(jq --raw-output 'with_entries(select(.value=="latest"))|keys[]' versions.json)"
+                  # shellcheck disable=SC2034
+                  IFS='.' read -r LATEST_WP_MAJOR LATEST_WP_MINOR LATEST_WP_PATCH <<< "${LATEST_WP_VERSION}"
+                  if [[ "${LATEST_WP_MINOR}" == "0" ]]; then
+                    PREVIOUS_WP_SERIES="$((LATEST_WP_MAJOR - 1)).9"
+                  else
+                    PREVIOUS_WP_SERIES="${LATEST_WP_MAJOR}.$((LATEST_WP_MINOR - 1))"
+                  fi
+                  PREVIOUS_WP_VERSION="$(jq --raw-output --arg series "${PREVIOUS_WP_SERIES}" 'with_entries(select(.key|startswith($series)))|keys[-1]' versions.json)"
+                  echo "previous-wordpress-version=${PREVIOUS_WP_VERSION}" >> "$GITHUB_OUTPUT"
+                  rm versions.json
+
     tests:
-        name: Test Suite
+        name: PHP ${{ matrix.php }}${{ matrix.wordpress != '' && format( ' (WP {0})', matrix.wordpress ) || '' }}
+        needs: [compute-previous-wordpress-version]
         runs-on: ubuntu-latest
+        strategy:
+            fail-fast: false
+            matrix:
+                php: ['7.4', '8.0', '8.1', '8.2', '8.3']
+                wordpress: ['', 'previous major version']
+        env:
+            WP_ENV_PHP_VERSION: ${{ matrix.php }}
+            WP_ENV_CORE: ${{ matrix.wordpress == '' && 'WordPress/WordPress' || format( 'https://wordpress.org/wordpress-{0}.zip', needs.compute-previous-wordpress-version.outputs.previous-wordpress-version ) }}
         steps:
             - name: Checkout
               uses: actions/checkout@v3
@@ -66,23 +102,24 @@ jobs:
             - name: Install Node Dependencies
               run: npm i
 
-            - name: Compile JavaScript App
-              run: npm run build
-
-            - name: Setup MySQL
-              if: success() || failure()
-              uses: shogo82148/actions-setup-mysql@v1
+            - name: Set up PHP
+              uses: shivammathur/setup-php@v2
               with:
-                  mysql-version: '8.0'
+                  php-version: '${{ matrix.php }}'
+                  ini-file: development
+                  coverage: none
+
+            - name: Docker debug information
+              run: docker -v
 
-            - name: Run JavaScript unit tests
-              run: npm run test:unit
+            - name: Start Docker environment
+              run: npm run wp-env start
 
-            - name: Install Subversion
-              run: sudo apt-get update -y && sudo apt-get install -y subversion
+            - name: Docker container debug information
+              run: npm run wp-env run tests-cli wp core version
+
+            - name: Log running Docker containers
+              run: docker ps -a
 
             - name: Run PHP tests
-              run: |
-                  mysql -uroot -h127.0.0.1 -e 'SELECT version()' \
-                  && ./bin/install-wp-tests.sh --wp-version=trunk --recreate-db wordpress_test root ''  > /dev/null \
-                  && composer run-script test
+              run: npm run test:unit:php

package.json

@@ -48,9 +48,9 @@
 		"lint:php:fix": "composer run-script format",
 		"lint:md-docs": "wp-scripts lint-md-docs",
 		"lint:pkg-json": "wp-scripts lint-pkg-json",
-		"test:php": "npm run test:php:setup && wp-env run tests-wordpress --env-cwd='wp-content/plugins/create-block-theme' composer run-script test",
-		"test:php:watch": "wp-env run cli --env-cwd='wp-content/plugins/create-block-theme' composer run-script test:watch",
-		"test:php:setup": "wp-env start",
+		"test:unit:php:setup": "wp-env start",
+		"test:unit:php:base": "wp-env run tests-wordpress --env-cwd='wp-content/plugins/create-block-theme' vendor/bin/phpunit -c phpunit.xml.dist --verbose",
+		"test:unit:php": "npm run test:unit:php:setup && npm run test:unit:php:base",
 		"packages-update": "wp-scripts packages-update",
 		"start": "wp-scripts start src/admin-landing-page.js src/plugin-sidebar.js",
 		"composer": "wp-env run cli --env-cwd=wp-content/plugins/create-block-theme composer",

tests/bootstrap.php

@@ -19,11 +19,6 @@
 	define( 'WP_TESTS_PHPUNIT_POLYFILLS_PATH', $_phpunit_polyfills_path );
 }
 
-if ( ! file_exists( "{$_tests_dir}/includes/functions.php" ) ) {
-	echo "Could not find {$_tests_dir}/includes/functions.php, have you run bin/install-wp-tests.sh ?" . PHP_EOL; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
-	exit( 1 );
-}
-
 // Give access to tests_add_filter() function.
 require_once "{$_tests_dir}/includes/functions.php";