From 754cd092aea7d0f45f02c4fa695c827f7e81c5b2 Mon Sep 17 00:00:00 2001
From: Thomas Guyot-Sionnest <dermoth@aei.ca>
Date: Sun, 26 Jan 2014 04:49:32 -0500
Subject: Fix tests with an empty NPTest.cache file

The NPTest.cache cannot be loaded when empty, and this prevents
getting the data and populating the file. This patch skips the file when
empty as if it didn't exist.

diff --git a/NPTest.pm b/NPTest.pm
index b00a708..3d6e3a2 100644
--- a/NPTest.pm
+++ b/NPTest.pm
@@ -438,7 +438,7 @@ sub LoadCache
 
     chomp($fileContents);
     my( $contentsRef ) = eval $fileContents;
-    %CACHE = %{$contentsRef};
+    %CACHE = %{$contentsRef} if (defined($contentsRef));
 
   }
 
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