#!/usr/bin/perl -w
# Copyright 2011, 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 => 1515;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
use Math::NumSeq::RepdigitRadix;
# uncomment this to run the ### lines
#use Smart::Comments;
#------------------------------------------------------------------------------
# VERSION
{
my $want_version = 71;
ok ($Math::NumSeq::RepdigitRadix::VERSION, $want_version,
'VERSION variable');
ok (Math::NumSeq::RepdigitRadix->VERSION, $want_version,
'VERSION class method');
ok (eval { Math::NumSeq::RepdigitRadix->VERSION($want_version); 1 },
1,
"VERSION class check $want_version");
my $check_version = $want_version + 1000;
ok (! eval { Math::NumSeq::RepdigitRadix->VERSION($check_version); 1 },
1,
"VERSION class check $check_version");
}
#------------------------------------------------------------------------------
# characteristic()
{
my $seq = Math::NumSeq::RepdigitRadix->new;
ok ($seq->characteristic('digits'), undef, 'characteristic(digits)');
ok ($seq->characteristic('smaller'), 1, 'characteristic(smaller)');
ok ($seq->characteristic('integer'), 1, 'characteristic(integer)');
ok (! $seq->characteristic('increasing'), 1,
'characteristic(increasing)');
ok (! $seq->characteristic('non_decreasing'), 1,
'characteristic(non_decreasing)');
ok ($seq->characteristic('increasing_from_i'), undef,
'characteristic(increasing_from_i)');
ok ($seq->characteristic('non_decreasing_from_i'), undef,
'characteristic(non_decreasing_from_i)');
}
#------------------------------------------------------------------------------
# next() and ith()
sub is_a_repdigit {
my ($n, $radix) = @_;
### is_a_repdigit: "$n, $radix"
if ($radix < 2) {
die "radix < 2";
}
if ($n == 0) {
return 1;
}
my $digit = $n % $radix;
for (;;) {
$n = int($n/$radix);
if ($n) {
if (($n % $radix) != $digit) {
### no ...
return 0;
}
} else {
### yes ...
return 1;
}
}
}
{
my $seq = Math::NumSeq::RepdigitRadix->new;
foreach my $i ($seq->i_start .. 500) {
my ($got_i, $radix) = $seq->next;
ok ($got_i, $i, "next() i");
ok ($radix == 0 || is_a_repdigit($i,$radix));
my $ith_radix = $seq->ith($i);
ok ($radix, $ith_radix, "ith($i) value");
}
}
#------------------------------------------------------------------------------
# ith() on BigInt
{
my $seq = Math::NumSeq::RepdigitRadix->new;
my $small = 123;
require Math::BigInt;
my $big = Math::BigInt->new(123);
ok ($seq->ith($big), $seq->ith($small));
}
exit 0;