ci: migrate integration tests from SVN to wp-env

Modernises the integration test infrastructure to use wp-env instead of
the legacy SVN-based test setup. GitHub-hosted runners no longer include
SVN by default, causing test failures. This migration aligns with
WordPress's recommended testing approach and ensures consistency between
local development and CI environments.

Updates the workflow to install wp-env, removes MySQL service
configuration (now provided by wp-env), and eliminates the prepare-ci
script. Adds yoast/phpunit-polyfills ^2.0 for PHPUnit 9 compatibility
and renames composer scripts to reflect their integration test purpose.

Removes bin/install-wp-tests.sh (182 lines) which is no longer needed.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: GaryJones

.github/workflows/integrations.yml

@@ -54,11 +54,15 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Install wordpress environment
+        run: npm install -g @wordpress/env
+
       - name: Setup PHP ${{ matrix.php }}
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
           coverage: ${{ matrix.coverage && 'xdebug' || 'none' }}
+          tools: composer
 
       - name: Setup problem matchers for PHP
         run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"
@@ -69,19 +73,14 @@ jobs:
       - name: Install Composer dependencies
         uses: ramsey/composer-install@v3
 
-      - name: Start MySQL Service
-        run: sudo systemctl start mysql.service
-
-      - name: Setting mysql_native_password for PHP <= 7.3
-        if: ${{ matrix.php <= 7.3 }}
-        run: mysql -u root -proot -e "ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';"
-
-      - name: Prepare environment for integration tests
-        run: composer prepare-ci --no-interaction
+      - name: Setup wp-env
+        run: wp-env start
+        env:
+          WP_ENV_CORE: WordPress/WordPress#${{ matrix.wordpress == 'latest' && 'master' || matrix.wordpress }}
 
       - name: Run integration tests
         if: ${{ matrix.coverage == false }}
-        run: composer test --no-interaction
+        run: composer test-integration --no-interaction
 
       - name: Run integration tests with code coverage
         if: ${{ matrix.coverage == true  }}

bin/install-wp-tests.sh

@@ -22,6 +22,7 @@
 		"automattic/vipwpcs": "^3",
 		"php-parallel-lint/php-parallel-lint": "^1.0",
 		"phpcompatibility/phpcompatibility-wp": "^2.1",
+		"yoast/phpunit-polyfills": "^2.0",
 		"yoast/wp-test-utils": "^1"
 	},
 	"config": {
@@ -35,9 +36,7 @@
 		"coverage": [
 			"@php ./vendor/bin/phpunit --coverage-html ./.phpunit.cache/coverage-html"
 		],
-		"coverage-ci": [
-			"@php ./vendor/bin/phpunit"
-		],
+		"coverage-ci": "wp-env run tests-cli --env-cwd=wp-content/plugins/ad-code-manager ./vendor/bin/phpunit",
 		"cs": [
 			"@php ./vendor/bin/phpcs -q"
 		],
@@ -51,27 +50,18 @@
 		"lint-ci": [
 			"@php ./vendor/php-parallel-lint/php-parallel-lint/parallel-lint . -e php --exclude vendor --exclude .git --checkstyle"
 		],
-		"prepare-ci": [
-			"bash bin/install-wp-tests.sh wordpress_test root root localhost"
-		],
-		"test": [
-			"@php ./vendor/bin/phpunit --no-coverage --order-by=random"
-		],
-		"test-ms": [
-			"@putenv WP_MULTISITE=1",
-			"@composer test"
-		]
+		"test-integration": "wp-env run tests-cli --env-cwd=wp-content/plugins/ad-code-manager ./vendor/bin/phpunit --no-coverage --order-by=random",
+		"test-integration-ms": "wp-env run tests-cli --env-cwd=wp-content/plugins/ad-code-manager /bin/bash -c 'WP_MULTISITE=1 ./vendor/bin/phpunit --no-coverage --order-by=random'"
 	},
 	"scripts-descriptions": {
 		"coverage": "Run tests with code coverage reporting",
-		"coverage-ci": "Run tests with code coverage reporting and send results to stdout",
+		"coverage-ci": "Run integration tests with code coverage reporting in wp-env",
 		"cs": "Run PHP Code Sniffer",
 		"cs-fix": "Run PHP Code Sniffer and fix violations",
 		"i18n": "Generate a POT file for translation",
 		"lint": "Run PHP linting",
 		"lint-ci": "Run PHP linting and send results to stdout",
-		"prepare-ci": "Prepare the environment for integration tests",
-		"test": "Run all tests for the Ad Code Manager plugin",
-		"test-ms": "Run integration tests for the Ad Code Manager plugin in multisite mode"
+		"test-integration": "Run integration tests in wp-env",
+		"test-integration-ms": "Run integration tests in multisite mode in wp-env"
 	}
 }