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# -*- perl -*-
# callback.t - Test script for Term::ReadLine:GNU callback function
#
# $Id: callback.t 454 2014-03-02 14:28:30Z hayashi $
#
# Copyright (c) 2014 Hiroo Hayashi. All rights reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the same terms as Perl itself.
BEGIN {
print "1..7\n"; $n = 1;
$ENV{PERL_RL} = 'Gnu'; # force to use Term::ReadLine::Gnu
}
END {print "not ok 1\tfail to loading\n" unless $loaded;}
# 'define @ARGV' is deprecated
my $verbose = scalar @ARGV && ($ARGV[0] eq 'verbose');
use strict;
use warnings;
use vars qw($loaded $n);
eval "use ExtUtils::testlib;" or eval "use lib './blib';";
use Term::ReadLine;
$loaded = 1;
print "ok 1\tloading\n"; $n++;
########################################################################
# test new method
my $term = new Term::ReadLine 'ReadLineTest';
print defined $term ? "ok $n\n" : "not ok $n\n"; $n++;
my $attribs = $term->Attribs;
print defined $attribs ? "ok $n\n" : "not ok $n\n"; $n++;
my ($version) = $attribs->{library_version} =~ /(\d+\.\d+)/;
########################################################################
# check Tk is installed and X Window is available
#disable the warning, "Too late to run INIT block at..."
{
no warnings 'uninitialized';
if (eval "use Tk; 1" && $ENV{DISPLAY} ne '') {
print "ok $n\tuse Tk\n"; $n++;
} else {
print "ok $n\t# skipped since Tk is not available.\n"; $n++;
print "ok $n\t# skipped since Tk is not available.\n"; $n++;
print "ok $n\t# skipped since Tk is not available.\n"; $n++;
print "ok $n\t# skipped since Tk is not available.\n"; $n++;
exit 0;
}
}
########################################################################
my ($IN, $OUT);
if ($verbose) {
# wait for Perl Tk script from tty
$IN = $attribs->{instream};
$OUT = $attribs->{outstream};
} else {
# test automatically
# to surpress warning on GRL 4.2a (and above?).
$attribs->{prep_term_function} = sub {} if ($version > 4.1);
# open(IN, 't/button.pl') or die "cannot open 't/button.pl': $!\n";
# $IN = \*IN;
# old Perl did not work with the next line...
$IN = \*DATA; # does not work. Why?
open(NULL, '>/dev/null') or die "cannot open \`/dev/null\': $!\n";
$attribs->{outstream} = $OUT = \*NULL;
}
########################################################################
my $mw;
$mw = MainWindow->new();
$mw->protocol('WM_DELETE_WINDOW' => \&quit);
$attribs->{instream} = $IN;
$mw->fileevent($IN, 'readable', $attribs->{callback_read_char});
print "ok $n\tcallback_read_char\n"; $n++;
$term->callback_handler_install("> ", sub {
my $line = shift;
quit() unless defined $line;
eval $line;
print $OUT "$@\n" if $@;
});
print "ok $n\tcallback_handler_install\n"; $n++;
&MainLoop;
sub quit {
$mw->fileevent($IN, 'readable', '');
$term->callback_handler_remove();
$mw->destroy;
print "ok $n\n"; $n++;
exit 0;
}
__END__
$b=$mw->Button(-text=>'hello',-command=>sub{print $OUT 'hello'})
$b->pack;
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