gallerymaker/modules/sigtrap.t
2014-12-11 21:58:53 -05:00

89 lines
2.5 KiB
Perl

#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
use strict;
use Config;
use Test::More tests => 15;
use_ok( 'sigtrap' );
package main;
local %SIG;
# use a version of sigtrap.pm somewhat too high
eval{ sigtrap->import(99999) };
like( $@->{description}, qr/version 99999 required,/, 'import excessive version number' );
# use an invalid signal name
eval{ sigtrap->import('abadsignal') };
like( $@->{description}, qr/^Unrecognized argument abadsignal/, 'send bad signame to import' );
eval{ sigtrap->import('handler') };
like( $@->{description}, qr/^No argument specified/, 'send handler without subref' );
sigtrap->import('AFAKE');
cmp_ok( %SIG{AFAKE}, '\==', \&sigtrap::handler_traceback, 'install normal handler' );
sigtrap->import('die', 'AFAKE', 'stack-trace', 'FAKE2');
cmp_ok( %SIG{AFAKE}, '\==', \&sigtrap::handler_die, 'install the die handler' );
cmp_ok( %SIG{FAKE2}, '\==',\&sigtrap::handler_traceback, 'install traceback handler' );
my @normal = qw( HUP INT PIPE TERM );
%SIG{[@normal]} = '' x @normal;
sigtrap->import('normal-signals');
is( (grep { ref $_ } %SIG{[@normal]}), @normal, 'check normal-signals set' );
my @error = qw( ABRT BUS EMT FPE ILL QUIT SEGV SYS TRAP );
%SIG{[@error]} = '' x @error;
sigtrap->import('error-signals');
is( (grep { ref $_ } %SIG{[@error]}), @error, 'check error-signals set' );
my @old = qw( ABRT BUS EMT FPE ILL PIPE QUIT SEGV SYS TERM TRAP );
%SIG{[@old]} = '' x @old;
sigtrap->import('old-interface-signals');
is( (grep { ref $_ } %SIG{[@old]}), @old, 'check old-interface-signals set' );
my $handler = sub {};
sigtrap->import(handler => $handler, 'FAKE3');
cmp_ok( %SIG{FAKE3}, '\==', $handler, 'install custom handler' );
%SIG{FAKE} = 'IGNORE';
sigtrap->import('untrapped', 'FAKE');
is( %SIG{FAKE}, 'IGNORE', 'respect existing handler set to IGNORE' );
my $out = tie *STDOUT, 'TieOut';
%SIG{FAKE} = 'DEFAULT';
$sigtrap::Verbose = 1;
sigtrap->import('any', 'FAKE');
cmp_ok( %SIG{FAKE}, '\==', \&sigtrap::handler_traceback, 'should set default handler' );
like( $out->read, qr/^Installing handler/, 'does it talk with $Verbose set?' );
# handler_die croaks with first argument
eval { sigtrap::handler_die('FAKE') };
like( $@->{description}, qr/^Caught a SIGFAKE/, 'does handler_die() croak?' );
package TieOut;
sub TIEHANDLE {
bless(\(my $scalar), @_[0]);
}
sub PRINT {
my $self = shift;
$$self .= join '', @_;
}
sub WRITE {
my ($self, $msg, $length) = @_;
$$self .= $msg;
}
sub read {
my $self = shift;
substr($$self, 0, length($$self), '');
}