From 059a6237e4164817e222fdad2410fce4afd0eccb Mon Sep 17 00:00:00 2001
From: "John P. Bloch" <johnpbloch@users.noreply.github.com>
Date: Tue, 14 Aug 2018 09:39:08 -0500
Subject: [PATCH] Add a message to the internal functions exception

Fixes #122
---
 php/WP_Mock/Functions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/php/WP_Mock/Functions.php b/php/WP_Mock/Functions.php
index 3fab6dd6..8fdd3279 100644
--- a/php/WP_Mock/Functions.php
+++ b/php/WP_Mock/Functions.php
@@ -274,7 +274,7 @@ private function validate_function_name( $function_name ) {
 				$this->internal_functions = $defined_functions['internal'];
 			}
 			if ( in_array( $function_name, $this->internal_functions ) ) {
-				throw new \InvalidArgumentException;
+				throw new \InvalidArgumentException( 'Cannot override internal PHP functions!' );
 			}
 		}