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#!/usr/bin/perl -w
# Copyright 2010, 2011, 2012, 2013, 2014 Kevin Ryde
# This file is part of Math-PlanePath.
#
# Math-PlanePath is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# Math-PlanePath is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with Math-PlanePath. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Test;
plan tests => 76;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
require Math::PlanePath::Staircase;
#------------------------------------------------------------------------------
# VERSION
{
my $want_version = 117;
ok ($Math::PlanePath::Staircase::VERSION, $want_version,
'VERSION variable');
ok (Math::PlanePath::Staircase->VERSION, $want_version,
'VERSION class method');
ok (eval { Math::PlanePath::Staircase->VERSION($want_version); 1 },
1,
"VERSION class check $want_version");
my $check_version = $want_version + 1000;
ok (! eval { Math::PlanePath::Staircase->VERSION($check_version); 1 },
1,
"VERSION class check $check_version");
my $path = Math::PlanePath::Staircase->new;
ok ($path->VERSION, $want_version, 'VERSION object method');
ok (eval { $path->VERSION($want_version); 1 },
1,
"VERSION object check $want_version");
ok (! eval { $path->VERSION($check_version); 1 },
1,
"VERSION object check $check_version");
}
#------------------------------------------------------------------------------
# n_start, x_negative, y_negative
{
my $path = Math::PlanePath::Staircase->new (height => 123);
ok ($path->n_start, 1, 'n_start()');
ok ($path->x_negative, 0, 'x_negative() instance method');
ok ($path->y_negative, 0, 'y_negative() instance method');
}
{
# width not a parameter as such ...
my @pnames = map {$_->{'name'}}
Math::PlanePath::Staircase->parameter_info_list;
ok (join(',',@pnames), 'n_start');
}
#------------------------------------------------------------------------------
# first few values
{
my @data = ([ 0.75, -0.25,0 ],
[ 1, 0,0 ],
[ 1.25, 0,-0.25 ],
[ 1.75, -0.25, 2 ],
[ 2, 0,2 ],
[ 2.25, 0, 1.75 ],
[ 2.75, 0, 1.25 ],
[ 3, 0,1 ],
[ 3.25, 0.25, 1 ],
[ 4, 1,1 ],
[ 4.25, 1,0.75 ],
[ 5, 1,0 ],
[ 5.25, 1.25, 0 ],
[ 6, 2,0 ],
[ 6.25, 2, -0.25 ],
[ 6.75, -0.25, 4 ],
[ 7, 0,4 ],
[ 8, 0,3 ],
[ 9, 1,3 ],
[ 10, 1,2 ],
[ 11, 2,2 ],
[ 12, 2,1 ],
[ 13, 3,1 ],
[ 14, 3,0 ],
[ 15, 4,0 ],
);
my $path = Math::PlanePath::Staircase->new;
foreach my $elem (@data) {
my ($n, $want_x, $want_y) = @$elem;
my ($got_x, $got_y) = $path->n_to_xy ($n);
ok ($got_x, $want_x, "x at n=$n");
ok ($got_y, $want_y, "y at n=$n");
}
foreach my $elem (@data) {
my ($want_n, $x, $y) = @$elem;
next unless $want_n == int($want_n);
my $got_n = $path->xy_to_n ($x, $y);
ok ($got_n, $want_n, "n at x=$x,y=$y");
}
}
exit 0;
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