[TASK] Add PHPUnit and test

Author: Marc Wolf

.github/workflows/docker-compose-test.yml

@@ -40,6 +40,14 @@ jobs:
                     echo "Xdebug test successful."
                   fi
 
+            - name: Install Composer dependencies
+              run: |
+                  docker-compose exec -T php-fpm composer install
+
+            - name: Run PHPUnit tests
+              run: |
+                  docker-compose exec -T php-fpm ./vendor/bin/phpunit tests --colors
+
             - name: Test Redis
               run: |
                   sleep 5 # Wait for Redis to fully initialize

.gitignore

@@ -5,4 +5,5 @@ mariadb/logs/*
 mariadb/conf/*
 !mariadb/data/.gitignore
 !mariadb/logs/.gitignore
-!mariadb/conf/.gitignore
+!mariadb/conf/.gitignore
+vendor

composer.json

@@ -0,0 +1,5 @@
+{
+  "require-dev": {
+    "phpunit/phpunit": "^11.2.1"
+  }
+}