A crude warning test

[perl/modules/autovivification.git] / t / 30-scope.t

diff --git a/t/30-scope.t b/t/30-scope.t
index 2e951cfe6bc14615aaf2b3f8e7b10716842125e2..857a7809ce1bf7480ecd627f62624e4a94476e72 100644 (file)
--- a/t/30-scope.t
+++ b/t/30-scope.t
@@ -3,10 +3,25 @@
 use strict;
 use warnings;
 
-use Test::More tests => 4;
+use Test::More tests => 8;
 
 use lib 't/lib';
 
+{
+ my @w;
+ my $x;
+ my $res = eval {
+  local $SIG{__WARN__} = sub { push @w, join '', 'warn:', @_ };
+  no autovivification qw/warn fetch/;
+  $x->{a};
+ };
+ is   @w,    1,     'warned only once';
+ like $w[0], qr/^warn:Reference was vivified at \Q$0\E line ${\(__LINE__-3)}/,
+                        'warning looks correct';
+ is_deeply $x,   undef, 'didn\'t vivified';
+ is        $res, undef, 'returned undef';
+}
+
 our $blurp;
 
 {
@@ -26,4 +41,3 @@ our $blurp;
  $expect->{r2_eval} = { } if $] <  5.009005;
  is_deeply $blurp, $expect, 'second require test didn\'t vivify';
 }
-