casa-mp-base

diff --git a/src/jsontestrunner/main.cpp b/src/jsontestrunner/main.cpp

index d2d41aa..2155d29 100644

--- a/src/jsontestrunner/main.cpp

+++ b/src/jsontestrunner/main.cpp

@@ -58,9 +58,11 @@

     return "";

   fseek(file, 0, SEEK_END);

   long const size = ftell(file);

+  if (size == -1)

+    return "";

   size_t const usize = static_cast<unsigned long>(size);

   fseek(file, 0, SEEK_SET);

-  char* buffer = new char[size + 1];

+  char* buffer = new char[usize + 1];

   buffer[size] = 0;

   Json::String text;

   if (fread(buffer, 1, usize, file) == usize)