updated tests.

Author: ljonesfl

tests/Patterns/Singleton/MemcacheTest.php

@@ -112,6 +112,17 @@ public function testInvalidateSetsToFalse(): void
 
 	public function testGetMemcacheCreatesConnectionOnFirstCall(): void
 	{
+		// Skip if Memcached server not available (though Memcached doesn't connect until use)
+		if (class_exists('\Memcached', false)) {
+			try {
+				$testMemcached = new \Memcached();
+				$testMemcached->addServer('127.0.0.1', 11211);
+				// Memcached doesn't connect until first operation, so this is usually safe
+			} catch (\Throwable $e) {
+				$this->markTestSkipped('Memcached not available: ' . $e->getMessage());
+			}
+		}
+
 		// Reset static memcache
 		$reflection = new \ReflectionClass(Memcache::class);
 		$property = $reflection->getProperty('_memcache');

tests/Patterns/Singleton/RedisTest.php

@@ -134,6 +134,20 @@ public function testInvalidateDeletesKey(): void
 
 	public function testGetRedisCreatesConnectionOnFirstCall(): void
 	{
+		// Skip if we can't connect to Redis server
+		if (class_exists('\Redis', false)) {
+			try {
+				$testRedis = new \Redis();
+				@$testRedis->connect('127.0.0.1', 6379, 0.1);
+				if (!$testRedis->ping()) {
+					$this->markTestSkipped('Redis server not available');
+				}
+				$testRedis->close();
+			} catch (\Throwable $e) {
+				$this->markTestSkipped('Redis server not available: ' . $e->getMessage());
+			}
+		}
+
 		// Reset static redis
 		$reflection = new \ReflectionClass(Redis::class);
 		$property = $reflection->getProperty('_redis');