better testing of extra module load failures

diff --git a/t/crash.t b/t/crash.t
index 5134293..4aebc1c 100644 (file)
--- a/t/crash.t
+++ b/t/crash.t
@@ -1,16 +1,29 @@
-use strictures;
+use strict;
+use warnings FATAL => 'all';
+use Test::More
+  $] < 5.008004 ? ( skip_all => "can't test extra loading on perl < 5.8.4" )
+                : ( tests => 1 );
+use File::Spec;
 
-use Test::More tests => 1;
+my %extras = map { my $m = "$_.pm"; $m =~ s{::}{/}g; $m => 1 } qw(
+  indirect
+  multidimensional
+  bareword::filehandles
+);
 
-SKIP: {
-  skip 'Have all the modules; can\'t check this', 1
-    unless not eval {
-      require indirect;
-      require multidimensional;
-      require bareword::filehandles;
-      1;
-    };
+unshift @INC, sub {
+  my $mod = $_[1];
+  die "Can't locate $mod in \@INC\n"
+    if $extras{$mod};
+  return 0;
+};
 
-  pass('can manage to survive with some modules missing!');
-}
+my $err = do {
+  local $ENV{PERL_STRICTURES_EXTRA} = 1;
+  local *STDERR;
+  open STDERR, '>', File::Spec->devnull;
+  eval q{use strictures;};
+  $@;
+};
 
+is $err, '', 'can manage to survive with some modules missing!';