diff --git a/src/Driver/RedisDriver.php b/src/Driver/RedisDriver.php
index 0387ba5..bfd2cc6 100644
--- a/src/Driver/RedisDriver.php
+++ b/src/Driver/RedisDriver.php
@@ -40,12 +40,10 @@ class RedisDriver extends AbstractDriver {
 	 */
 	public function __construct(array $config = [], array $options = [])
 	{
-		// @codeCoverageIgnoreStart
 		if ( ! class_exists('Predis\\Client'))
 		{
 			throw new CacheException("The redis driver requires the predis/predis composer package to be installed.");
 		}
-		// @codeCoverageIgnoreEnd
 
 		$this->conn = new Client($config, $options);
 	}
diff --git a/tests/Driver/MemcacheDriverTest.php b/tests/Driver/MemcacheDriverTest.php
index 9f09794..2f8a591 100644
--- a/tests/Driver/MemcacheDriverTest.php
+++ b/tests/Driver/MemcacheDriverTest.php
@@ -17,16 +17,24 @@
 namespace Aviat\Banker\Tests\Driver;
 
 use Aviat\Banker\Driver\MemcacheDriver;
+use Aviat\Banker\Exception\CacheException;
 
 class MemcacheDriverTest extends DriverTestBase {
 
 	public function setup()
 	{
-		$this->driver = new MemcacheDriver([
-			'host' => 'localhost',
-			'port' => '11211',
-			'persistent' => false,
-		]);
-		$this->driver->flush();
+		try 
+		{
+			$this->driver = new MemcacheDriver([
+				'host' => 'localhost',
+				'port' => '11211',
+				'persistent' => false,
+			]);
+			$this->driver->flush();
+		}
+		catch (CacheException $e)
+		{
+			$this->markTestSkipped();
+		}
 	}
 }
diff --git a/tests/Driver/RedisDriverTest.php b/tests/Driver/RedisDriverTest.php
index c54cbb5..746f14b 100644
--- a/tests/Driver/RedisDriverTest.php
+++ b/tests/Driver/RedisDriverTest.php
@@ -22,7 +22,15 @@ class RedisDriverTest extends DriverTestBase {
 	
 	public function setup()
 	{
-		$this->driver = new RedisDriver();
+		$config = [];
+		if (array_key_exists('REDIS_HOST', $_ENV)) 
+		{
+			$config['scheme'] = 'tcp';
+			$config['host'] = $_ENV['REDIS_HOST'];
+			$config['port'] = 6379;
+		}
+		
+		$this->driver = new RedisDriver($config);
 		$this->driver->flush();
 	}