[Xen-devel] [OSSTEST PATCH 03/26] TestSupport: Produce stack trace for undef tfileex

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

Use `confess' to see where an undef $rfile came from.  I think there
will probably be lots more of this pattern.

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
 Osstest/TestSupport.pm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Osstest/TestSupport.pm b/Osstest/TestSupport.pm
index d0d6ef3..a6ab18f 100644
--- a/Osstest/TestSupport.pm
+++ b/Osstest/TestSupport.pm
@@ -31,6 +31,7 @@ use Osstest::Logtailer;
 use File::Copy;
 use File::Basename;
 use IO::Handle;
+use Carp;
 
 BEGIN {
     use Exporter ();
@@ -523,6 +524,8 @@ sub teditfileex {
     my $code= pop @_;
     my ($ho,$rfile,$lleaf,$rdest) = @_;
 
+    confess unless defined $rfile;
+
     if (!defined $rdest) {
         $rdest= $rfile;
     }
-- 
2.1.4


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