Test PHP 8.1 (#14109)

* Test PHP 8.1
Would love to remove the PHP7 versions, but we need to update our minimum version first.

* Try mariadb 10.8

* Reduce the number of open connections during testing.

.github/workflows/test.yml

@@ -25,13 +25,18 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          -
+            php-version: 8.1
+            name: Unit
+            skip-web-check: 1
+            database: mariadb:10.8
           -
             php-version: 8.0
             name: Unit
             skip-web-check: 1
             database: mariadb:10.5
           -
-            php-version: 8.0
+            php-version: 8.1
             name: Web
             skip-unit-check: 1
             database: mysql:5.7

tests/TestCase.php

@@ -35,4 +35,13 @@ abstract class TestCase extends BaseTestCase
             }
         }
     }
+
+    protected function tearDown(): void
+    {
+        $this->beforeApplicationDestroyed(function () {
+            $this->getConnection()->disconnect();
+        });
+
+        parent::tearDown();
+    }
 }

tests/bootstrap.php

@@ -83,3 +83,5 @@ if (getenv('DBTEST')) {
 
 Config::reload(); // reload the config including database config
 \LibreNMS\Util\OS::updateCache(true); // Force update of OS Cache
+
+app()->terminate(); // destroy the bootstrap Laravel application