#! perl
# Copyright (C) 2007,2014, Parrot Foundation.
# 041-return_undef.t

use strict;
use warnings;

use Test::More tests => 12;
use Carp;
use lib qw( lib t/configure/testlib );
use Parrot::Configure;
use Parrot::Configure::Options qw( process_options );
use Parrot::Configure::Utils qw | capture |;

$| = 1;
is($|, 1, "output autoflush is set");

my ($args, $step_list_ref) = process_options( {
    argv            => [ ],
    mode            => q{configure},
} );
ok(defined $args, "process_options returned successfully");
my %args = %$args;

my $conf = Parrot::Configure->new;
ok(defined $conf, "Parrot::Configure->new() returned okay");

my $step = q{init::zeta};
my $description = 'Determining if your computer does zeta';

$conf->add_steps( $step );
my @confsteps = @{$conf->steps};
isnt(scalar @confsteps, 0,
    "Parrot::Configure object 'steps' key holds non-empty array reference");
is(scalar @confsteps, 1,
    "Parrot::Configure object 'steps' key holds ref to 1-element array");
my $nontaskcount = 0;
foreach my $k (@confsteps) {
    $nontaskcount++ unless $k->isa("Parrot::Configure::Task");
}
is($nontaskcount, 0, "Each step is a Parrot::Configure::Task object");
is($confsteps[0]->step, $step,
    "'step' element of Parrot::Configure::Task struct identified");
ok(! ref($confsteps[0]->object),
    "'object' element of Parrot::Configure::Task struct is not yet a ref");

$conf->options->set(%args);

{
    my $rv;
    my ($stdout, $stderr);
    capture ( sub {$rv    = $conf->runsteps}, \$stdout, \$stderr );
    ok($rv, "runsteps successfully ran $step");
    like($stdout,
    qr/$description/s,
    "Got correct description for $step");
    like($stderr,
    qr/step $step failed:/,
    "Got error message expected upon running $step");
}

pass("Completed all tests in $0");

################### DOCUMENTATION ###################

=head1 NAME

041-return_undef.t - see what happens when configuration step returns an
undefined value

=head1 SYNOPSIS

    % prove t/configure/041-return_undef.t

=head1 DESCRIPTION

The files in this directory test functionality used by F<Configure.pl>.

The tests in this file examine what happens when your configuration step
module returns something other than the object but has some other defined
result method.

=head1 AUTHOR

James E Keenan

=head1 SEE ALSO

Parrot::Configure, F<Configure.pl>.

=cut

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