Added autoloader unit test with minor supporting change in Loader

Signed-off-by: dchill42 <dchill42@gmail.com>
diff --git a/tests/mocks/core/loader.php b/tests/mocks/core/loader.php
index e28650d..c0e0213 100644
--- a/tests/mocks/core/loader.php
+++ b/tests/mocks/core/loader.php
@@ -30,6 +30,15 @@
 		$this->_ci_helper_paths 	= array($this->app_path, $this->base_path);
 		$this->_ci_model_paths 		= array($this->app_path);
 		$this->_ci_view_paths 		= array($this->app_path.'views/' => TRUE);
+		$this->_ci_autoloader_path	= $this->app_path;
+	}
+
+	/**
+	 * Give public access to _ci_autoloader for testing
+	 */
+	public function autoload()
+	{
+		$this->_ci_autoloader();
 	}
 
 }