Add connections test

tests/unit/Utopia/Pools/ConnectionsTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Tests\Unit\Utopia\Pools;
+
+use Appwrite\Utopia\Pools\Connections;
+use PHPUnit\Framework\TestCase;
+use Utopia\Pools\Connection;
+use Utopia\Pools\Pool;
+
+class ConnectionsTest extends TestCase
+{
+    public function testAdd()
+    {
+        $connections = new Connections();
+        $connection = new Connection('resource');
+        $connections->add($connection);
+        $this->assertEquals(1, $connections->count());
+    }
+
+    public function testRemove()
+    {
+        $connections = new Connections();
+        $connection = new Connection('resource');
+        $connections->add($connection);
+        $connections->remove($connection->getID());
+        $this->assertEquals(0, $connections->count());
+    }
+
+    public function testReclaim()
+    {
+        $connections = new Connections();
+        $pool = new Pool('test', 1, function () {
+            return 'resource';
+        });
+        $connection = $pool->pop();
+        $connections->add($connection);
+        $connections->reclaim();
+        $this->assertEquals(1, $pool->count());
+    }
+}