#!/usr/bin/perl -w
# Copyright 2012, 2013, 2014 Kevin Ryde
# This file is part of Math-NumSeq.
#
# Math-NumSeq 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-NumSeq 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-NumSeq. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Test;
plan tests => 35;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
use Math::NumSeq::Tetrahedral;
#------------------------------------------------------------------------------
# VERSION
{
my $want_version = 72;
ok ($Math::NumSeq::Tetrahedral::VERSION, $want_version,
'VERSION variable');
ok (Math::NumSeq::Tetrahedral->VERSION, $want_version,
'VERSION class method');
ok (eval { Math::NumSeq::Tetrahedral->VERSION($want_version); 1 },
1,
"VERSION class check $want_version");
my $check_version = $want_version + 1000;
ok (! eval { Math::NumSeq::Tetrahedral->VERSION($check_version); 1 },
1,
"VERSION class check $check_version");
}
#------------------------------------------------------------------------------
# characteristic(), i_start(), parameters
{
my $seq = Math::NumSeq::Tetrahedral->new;
ok ($seq->characteristic('increasing'), 1, 'characteristic(increasing)');
ok ($seq->characteristic('integer'), 1, 'characteristic(integer)');
ok ($seq->i_start, 0, 'i_start()');
my @pnames = map {$_->{'name'}} $seq->parameter_info_list;
ok (join(',',@pnames),
'');
}
#------------------------------------------------------------------------------
# value_to_i_floor()
{
my $seq = Math::NumSeq::Tetrahedral->new;
ok ($seq->value_to_i_floor(0), 0);
ok ($seq->value_to_i_floor(0.5), 0);
ok ($seq->value_to_i_floor(1), 1);
ok ($seq->value_to_i_floor(1.5), 1);
ok ($seq->value_to_i_floor(2), 1);
ok ($seq->value_to_i_floor(3.5), 1);
ok ($seq->value_to_i_floor(4), 2);
ok ($seq->value_to_i_floor(4.5), 2);
ok ($seq->value_to_i_floor(55.5), 5);
ok ($seq->value_to_i_floor(56.5), 6);
ok ($seq->value_to_i_floor(56.5), 6);
# T(-1) = (-1)*0*1/6 = 0
# T(-2) = (-2)*(-1)*0/6 = 0
ok ($seq->value_to_i_floor(-0.5), -3);
ok ($seq->value_to_i_floor(-1), -3);
# T(-3) = (-3)*(-2)*(-1)/6 = -1
ok ($seq->value_to_i_floor(-1.5), -4);
ok ($seq->value_to_i_floor(-3.5), -4);
ok ($seq->value_to_i_floor(-4), -4);
# T(-4) = (-4)*(-3)*(-2)/6 = -4
ok ($seq->value_to_i_floor(-4.001), -5);
ok ($seq->value_to_i_floor(-4.5), -5);
ok ($seq->value_to_i_floor(-5), -5);
ok ($seq->value_to_i_floor(-9.5), -5);
ok ($seq->value_to_i_floor(-10), -5);
# T(-5) = (-5)*(-4)*(-3)/6 = -10
ok ($seq->value_to_i_floor(-10.5), -6);
ok ($seq->value_to_i_floor(-19), -6);
ok ($seq->value_to_i_floor(-20), -6);
# T(-6) = (-6)*(-5)*(-4)/6 = -20
ok ($seq->value_to_i_floor(-20.001), -7);
ok ($seq->value_to_i_floor(-20.5), -7);
ok ($seq->value_to_i_floor(-21), -7);
}
exit 0;