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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 => 75;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
require Math::PlanePath::DiamondSpiral;
#------------------------------------------------------------------------------
# VERSION
{
my $want_version = 117;
ok ($Math::PlanePath::DiamondSpiral::VERSION, $want_version,
'VERSION variable');
ok (Math::PlanePath::DiamondSpiral->VERSION, $want_version,
'VERSION class method');
ok (eval { Math::PlanePath::DiamondSpiral->VERSION($want_version); 1 },
1,
"VERSION class check $want_version");
my $check_version = $want_version + 1000;
ok (! eval { Math::PlanePath::DiamondSpiral->VERSION($check_version); 1 },
1,
"VERSION class check $check_version");
my $path = Math::PlanePath::DiamondSpiral->new;
ok ($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");
}
#------------------------------------------------------------------------------
# rect_to_n_range()
{
my $path = Math::PlanePath::DiamondSpiral->new;
foreach my $elem
(
[0,-2, -2,-2, 13,39], # Y=-2, X=-2 to 0 being 39,24,13
[-2,1, 2,1, 3,21], # Y=1, X=-2..2 being 21,10,3,8,17
[1,-2, 1,2, 2,18], # X=1, Y=-2..2 being 14,6,2,8,18
[0,-2, 0,2, 1,13], # X=0, Y=-2..2 being 13,5,1,3,9
[-1,-2, -1,2, 4,24], # X=-1, Y=-2..2 being 24,12,4,10,20
#
# [-2,-1, 2,-1, 3,24], # Y=-1, X=-2..2 being 9,3,4,12,24
# [-2,-1, 1,-1, 3,12], # Y=-1, X=-2..1 being 9,3,4,12
) {
my ($x1,$y1,$x2,$y2, $want_lo, $want_hi) = @$elem;
my ($got_lo, $got_hi) = $path->rect_to_n_range ($x1,$y1, $x2,$y2);
ok ($got_lo, $want_lo, "lo on $x1,$y1 $x2,$y2");
ok ($got_hi, $want_hi, "hi on $x1,$y1 $x2,$y2");
}
}
#------------------------------------------------------------------------------
# n_start, x_negative, y_negative
{
my $path = Math::PlanePath::DiamondSpiral->new (height => 123);
ok ($path->n_start, 1, 'n_start()');
ok ($path->x_negative, 1, 'x_negative()');
ok ($path->y_negative, 1, 'y_negative()');
}
{
my @pnames = map {$_->{'name'}}
Math::PlanePath::DiamondSpiral->parameter_info_list;
ok (join(',',@pnames), 'n_start');
}
#------------------------------------------------------------------------------
# xy_to_n
{
my @data = ([1, 0,0 ],
[2, 1,0 ],
[3, 0,1 ],
[4, -1,0 ],
[5, 0,-1 ],
[5.25, 0.25,-1 ],
[5.75, 0.75,-1 ],
[6, 1,-1 ],
[7, 2,0 ],
[8, 1,1 ],
[9, 0,2 ],
[10, -1,1 ],
[11, -2,0 ],
[12, -1,-1 ],
[13, 0,-2 ],
[13.25, 0.25,-2 ],
[13.75, 0.75,-2 ],
[14, 1,-2 ],
);
my $path = Math::PlanePath::DiamondSpiral->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;
$want_n = int ($want_n + 0.5);
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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