Raised CI_Loader test coverage to 93%

Signed-off-by: dchill42 <dchill42@gmail.com>
diff --git a/tests/mocks/core/common.php b/tests/mocks/core/common.php
index b001074..9289b27 100644
--- a/tests/mocks/core/common.php
+++ b/tests/mocks/core/common.php
@@ -170,9 +170,10 @@
 
 if ( ! function_exists('is_loaded'))
 {
-	function is_loaded()
+	function &is_loaded()
 	{
-		throw new Exception('Bad Isolation: mock up environment');
+		$loaded = array();
+		return $loaded;
 	}
 }
 
@@ -190,4 +191,4 @@
 	{
 		return TRUE;
 	}
-}
+}
\ No newline at end of file
diff --git a/tests/mocks/core/loader.php b/tests/mocks/core/loader.php
deleted file mode 100644
index 7ea4da3..0000000
--- a/tests/mocks/core/loader.php
+++ /dev/null
@@ -1,13 +0,0 @@
-<?php
-
-class Mock_Core_Loader extends CI_Loader {
-
-	/**
-	 * Give public access to _ci_autoloader for testing
-	 */
-	public function autoload()
-	{
-		$this->_ci_autoloader();
-	}
-
-}