Add clearCache

Author: KanDisheng

source/Config.php

@@ -68,6 +68,15 @@ public static function addDirectory($directory = '.')
         return true;
     }
 
+    /**
+     * Clear Cache
+     */
+    public static function clearCache()
+    {
+        self::$cache = array();
+        return true;
+    }
+
     /**
      * Get
      * @param $key

test/ConfigTest.php

@@ -45,11 +45,20 @@ public function testConstruct()
      * Test Add Directory
      * @return void
      */
-    public function testSetDirectory()
+    public function testAddDirectory()
     {
         $this->assertEquals(Config::addDirectory($this->testDirectory), true);
     }
 
+    /**
+     * Test Clear Cache
+     * @return void
+     */
+    public function testClearCache()
+    {
+        $this->assertEquals(Config::clearCache(), true);
+    }
+
     /**
      * Test Get From Directory
      * @return void