Added test for custom redis client

Author: Geolim4

tests/RedisCustomClient.test.php

@@ -0,0 +1,37 @@
+<?php
+
+/**
+ * @author Khoa Bui (khoaofgod)  <[email protected]> http://www.phpfastcache.com
+ * @author Georges.L (Geolim4)  <[email protected]>
+ */
+
+use Phpfastcache\CacheManager;
+use Phpfastcache\Helper\TestHelper;
+use Phpfastcache\Drivers\Redis\Config as RedisConfig;
+use Redis as RedisClient;
+
+chdir(__DIR__);
+require_once __DIR__ . '/../vendor/autoload.php';
+$testHelper = new TestHelper('Redis custom client');
+
+try{
+    $redisClient = new RedisClient();
+    $redisClient->connect('127.0.0.1', 6379, 5);
+    $redisClient->select(0);
+    $cacheInstance = CacheManager::getInstance('Redis', (new RedisConfig())->setRedisClient($redisClient));
+    $cacheKey = 'redisCustomClient';
+    $cacheItem = $cacheInstance->getItem($cacheKey);
+    $cacheItem->set(1337);
+    $cacheInstance->save($cacheItem);
+    $cacheInstance->detachAllItems();
+    unset($cacheItem);
+    if($cacheInstance->getItem($cacheKey)->get() === 1337){
+        $testHelper->printPassText('Successfully written and read data from outside redis client');
+    }else{
+        $testHelper->printFailText('Error writing or reading data from outside redis client');
+    }
+}catch (\RedisException $e){
+    $testHelper->printFailText('A Redis exception occurred: ' . $e->getMessage());
+}
+
+$testHelper->terminateTest();