14 plan(skip_all => "Your system has no SIGALRM") if !exists $SIG{ALRM};
19 These are like the 010_complex_merge_classless test,
20 but an infinite loop has been made in the heirarchy,
21 to test that we can fail cleanly instead of going
26 # initial setup, everything sane
52 # A series of 8 abberations that would cause infinite loops,
53 # each one undoing the work of the previous
55 sub { @E::ISA = qw/F/ },
56 sub { @E::ISA = qw/D/; @C::ISA = qw/F/ },
57 sub { @C::ISA = qw//; @A::ISA = qw/K/ },
58 sub { @A::ISA = qw//; @J::ISA = qw/F K/ },
59 sub { @J::ISA = qw/F/; @H::ISA = qw/K G/ },
60 sub { @H::ISA = qw/G/; @B::ISA = qw/B/ },
61 sub { @B::ISA = qw//; @K::ISA = qw/K J I/ },
62 sub { @K::ISA = qw/J I/; @D::ISA = qw/A H B C/ },
65 foreach my $loopy (@loopies) {
67 local $SIG{ALRM} = sub { die "ALRMTimeout" };
70 mro::get_linear_isa('K', 'dfs');
74 if($err =~ /ALRMTimeout/) {
75 ok(0, "Loop terminated by SIGALRM");
77 elsif($err =~ /Recursive inheritance detected/) {
78 ok(1, "Graceful exception thrown");
81 ok(0, "Unrecognized exception: $err");
85 ok(0, "Infinite loop apparently succeeded???");