Add workflow to run tests

Author: wpscholar

.github/workflows/test.yml

@@ -0,0 +1,51 @@
+name: Run Plugin Tests
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version: [ '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
+        wp-version: [ '6.0', '6.1', '6.2', '6.3', '6.4', '6.5', '6.6' ]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '7.4'
+
+      - name: Install npm dependencies
+        run: npm ci
+
+      - name: Install Composer dependencies
+        run: composer install --prefer-dist --no-interaction --no-progress
+
+      - name: Write .wp-env.override.json
+        run: |
+          echo '{' > .wp-env.override.json
+          echo '  "core": "WordPress/WordPress#${{ matrix.wp-version }}",' >> .wp-env.override.json
+          echo '  "phpVersion": "${{ matrix.php-version }}"' >> .wp-env.override.json
+          echo '}' >> .wp-env.override.json
+
+      - name: Run wp-env and PHPUnit tests
+        run: |
+          npm run start:env
+          npm run test
+
+      - name: Stop wp-env
+        if: always()
+        run: npm run stop:env 

.wp-env.json

@@ -1,5 +1,5 @@
 {
-  "core": "WordPress/WordPress#6.0",
+  "core": null,
   "plugins": ["."],
   "phpVersion": "7.4",
   "config": {