Add integration tests

.github/workflows/ci.yml

@@ -36,7 +36,6 @@ jobs:
         uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3.0.2
 
       - name: Set up WordPress and WordPress Test Library
-        id: set1
         uses: ./
         with:
           version: latest
@@ -47,3 +46,48 @@ jobs:
           test -e /tmp/wordpress
           test -e /tmp/wordpress-tests-lib
           test -f /tmp/wordpress-tests-lib/wp-tests-config.php
+
+  integration:
+    name: Integration testing
+    runs-on: ubuntu-latest
+    services:
+      mysql:
+        image: mariadb:latest
+        ports:
+          - '3306:3306'
+        env:
+          MYSQL_ROOT_PASSWORD: wordpress
+          MARIADB_INITDB_SKIP_TZINFO: 1
+          MYSQL_USER: wordpress
+          MYSQL_PASSWORD: wordpress
+          MYSQL_DATABASE: wordpress_test
+    steps:
+      - name: Check out the source code
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3.0.2
+
+      - name: Set up PHP
+        uses: shivammathur/[email protected]
+        with:
+          coverage: none
+          php-version: "8.0"
+
+      - name: Install PHP Dependencies
+        uses: ramsey/[email protected]
+        with:
+          working-directory: wptest
+
+      - name: Set up WordPress and WordPress Test Library
+        uses: ./
+        with:
+          version: latest
+
+      - name: Verify MariaDB connection
+        run: |
+          while ! mysqladmin ping -h 127.0.0.1 -P ${{ job.services.mysql.ports[3306] }} --silent; do
+            sleep 1
+          done
+        timeout-minutes: 1
+
+      - name: Run tests
+        run: vendor/bin/phpunit
+        working-directory: wptest

README.md

@@ -7,15 +7,70 @@ This action sets up WordPress and WordPress Test Library. WordPress plugins can
   * `version`: WordPress version to use. Can be `trunk` or `nightly` for the latest nightly build, `latest` for the latest available WordPress release, an explicit version number (like `6.0`) to install the specific WordPress version, or a partial version (`5.9.x`) to install the latest available patch for the specific WordPress release. The default value is `latest`.
   * `cache`: whether to use cached WordPress and WordPress Test Library. The default value is `true`. Nightly releases are never cached;
   * `dir`: target directory for WordPress and WordPress Test Library; the default value is `/tmp`. **Warning:** the system will delete `wordpress`, `wordpress-test-library`, and `wordpress.zip` from that directory if they exist.
-  * `db_user`: database user for WordPress, `root` by default;
-  * `db_password`: database password for WordPress, empty by default;
+  * `db_user`: database user for WordPress, `wordpress` by default;
+  * `db_password`: database password for WordPress, `wordpress` by default;
   * `db_name`: database name for WordPress, `wordpress_test` by default. **Warning:** WordPress Test Library may delete all tables from that database;
-  * `db_host`: database host (`localhost` by default) for WordPress.
+  * `db_host`: database host (`127.0.0.1` by default) for WordPress.
 
 ## Outputs
 
   * `wp_version`: the actual WordPress version.
 
+## Environment Variables
+
+Upon success, the action sets the `WP_TESTS_DIR` environment variable; its value is the absolute path to the WordPress Test library
+
 ## Example usage
 
-TBD.
+```yaml
+name: CI
+
+on:
+  push:
+
+permissions:
+  contents: read
+
+jobs:
+  testing:
+    name: Run tests
+    runs-on: ubuntu-latest
+    services:
+      mysql:
+        image: mariadb:latest
+        ports:
+          - '3306:3306'
+        env:
+          MYSQL_ROOT_PASSWORD: wordpress
+          MARIADB_INITDB_SKIP_TZINFO: 1
+          MYSQL_USER: wordpress
+          MYSQL_PASSWORD: wordpress
+          MYSQL_DATABASE: wordpress_test
+    steps:
+      - name: Check out the source code
+        uses: actions/checkout@v3
+
+      - name: Set up PHP
+        uses: shivammathur/[email protected]
+        with:
+          coverage: none
+          php-version: "8.0"
+
+      - name: Install PHP Dependencies
+        uses: ramsey/[email protected]
+
+      - name: Set up WordPress and WordPress Test Library
+        uses: sjinks/setup-wordpress-test-library
+        with:
+          version: latest
+
+      - name: Verify MariaDB connection
+        run: |
+          while ! mysqladmin ping -h 127.0.0.1 -P ${{ job.services.mysql.ports[3306] }} --silent; do
+            sleep 1
+          done
+        timeout-minutes: 1
+
+      - name: Run tests
+        run: vendor/bin/phpunit
+```

action.yml

@@ -17,19 +17,19 @@ inputs:
   db_user:
     description: 'Database user'
     required: false
-    default: 'root'
+    default: 'wordpress'
   db_password:
     description: 'Database password'
     required: false
-    default: ''
+    default: 'wordpress'
   db_name:
     description: 'Database name'
     required: false
     default: 'wordpress_test'
   db_host:
     description: 'Database host'
     required: false
-    default: 'localhost'
+    default: '127.0.0.1'
 
 outputs:
   wp_version:

jest.config.js

@@ -11,6 +11,7 @@ module.exports = {
         '<rootDir>/dist/',
         '<rootDir>/lib/',
         '<rootDir>/node_modules/',
+        '<rootDir>/wptest/',
     ],
     testResultsProcessor: 'jest-sonar-reporter',
     reporters: [

src/main.ts

@@ -29,10 +29,10 @@ function getInputs(): Inputs {
         version: core.getInput('version', options) || 'latest',
         cache: core.getBooleanInput('cache', options) && process.env.RUNNER_TOOL_CACHE !== undefined,
         dir: core.getInput('dir', options) || tmpdir(),
-        db_user: core.getInput('db_user', options) || 'root',
-        db_password: core.getInput('db_password', options) || '',
+        db_user: core.getInput('db_user', options) || 'wordpress',
+        db_password: core.getInput('db_password', options) || 'wordpress',
         db_name: core.getInput('db_name', options) || 'wordpress_test',
-        db_host: core.getInput('db_host', options) || 'localhost',
+        db_host: core.getInput('db_host', options) || '127.0.0.1',
     };
 
     result.dir = path.resolve(result.dir);

wptest/.gitignore

@@ -0,0 +1,2 @@
+/vendor/
+/.phpunit.result.cache

wptest/composer.json

@@ -0,0 +1,6 @@
+{
+    "require-dev": {
+        "phpunit/phpunit": "^9.5",
+        "yoast/phpunit-polyfills": "^1.0"
+    }
+}