#331 looks better with tests

(cherry picked from commit 1e22514)

Author: Geolim4

.travis.yml

@@ -30,3 +30,4 @@ script:
   - php -f tests/NewCacheInstance.test.php
   - php -f tests/Psr6InterfaceImplements.test.php
   - php -f tests/AbstractProxy.test.php
+  - php -f tests/AttachingDetachingMethods.test.php

tests/AttachingDetachingMethods.test.php

@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * @author Khoa Bui (khoaofgod)  <[email protected]> http://www.phpfastcache.com
+ * @author Georges.L (Geolim4)  <[email protected]>
+ */
+
+use phpFastCache\CacheManager;
+use phpFastCache\Core\Pool\ExtendedCacheItemPoolInterface;
+use Psr\Cache\CacheItemPoolInterface;
+
+
+chdir(__DIR__);
+require_once __DIR__ . '/../vendor/autoload.php';
+
+$status = 0;
+echo "Testing [a|de]ttaching methods\n";
+
+/**
+ * Testing memcached as it is declared in .travis.yml
+ */
+$driverInstance = CacheManager::getInstance('Files');
+
+if (!is_object($driverInstance)) {
+    echo '[FAIL] CacheManager::getInstance() returned an invalid variable type:' . gettype($driverInstance) . "\n";
+    $status = 1;
+}else if(!($driverInstance instanceof CacheItemPoolInterface)){
+    echo '[FAIL] CacheManager::getInstance() returned an invalid class:' . get_class($driverInstance) . "\n";
+    $status = 1;
+}else{
+    $key = 'test_attaching_detaching';
+
+    $itemDetached = $driverInstance->getItem($key);
+    $driverInstance->detachItem($itemDetached);
+    $itemAttached = $driverInstance->getItem($key);
+
+    if(!$driverInstance->isAttached($itemDetached))
+    {
+        echo '[PASS] ExtendedCacheItemPoolInterface::isAttached() identified $itemDetached as being detached.' . "\n";
+    }
+    else
+    {
+        echo '[FAIL] ExtendedCacheItemPoolInterface::isAttached() failed to identify $itemDetached as to be detached.' . "\n";
+        $status = 1;
+    }
+
+    try{
+        $driverInstance->attachItem($itemDetached);
+        echo '[FAIL] ExtendedCacheItemPoolInterface::attachItem() attached $itemDetached without trowing an error.' . "\n";
+        $status = 1;
+    }catch(\LogicException $e){
+        echo '[PASS] ExtendedCacheItemPoolInterface::attachItem() failed to attach $itemDetached by trowing a LogicException exception.' . "\n";
+    }
+
+}
+
+exit($status);