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#!/usr/bin/env perl
use strict;
use warnings;
use Test::More;
use Math::Prime::Util qw/next_prime/;
use Math::BigInt try=>"GMP,Pari";
use Math::BigFloat;
use Config;
use Carp;
my @incorrect = (
-4,
'-',
'+',
'++4',
'+-4',
'-0004',
'a',
'5.6',
'4e',
'1.1e12',
'1e8',
'NaN',
Math::BigInt->new("-4"),
Math::BigFloat->new("15.6"),
);
push @incorrect, Math::BigInt->bnan() if $Config{d_isnan};
my %correct = (
4 => 5,
'+4' => 5,
'0004' => 5,
'+0004' => 5,
5.0 => 7,
1e8 => 100000007,
Math::BigInt->new("10000000000000000000000012") => "10000000000000000000000013",
Math::BigFloat->new("9") => 11,
);
plan tests => 2 # undefined and empty string
+ scalar(@incorrect) # values that should be rejected
+ scalar(keys(%correct)) # values that should be accepted
+ 2 # infinity and nan
+ 1; # long invalid string
eval { next_prime(undef); };
like($@, qr/^Parameter must be defined/, "next_prime(undef)");
eval { next_prime(""); };
like($@, qr/ ('' )?must be a positive integer/, "next_prime('')");
foreach my $v (@incorrect) {
eval { next_prime($v); };
like($@, qr/ '\Q$v\E' must be a positive integer/, "next_prime($v)");
}
while (my($v, $expect) = each (%correct)) {
is(next_prime($v), $expect, "Correct: next_prime($v)");
}
# The next two tests really are not critical, but are nice to check.
SKIP: {
skip "Your machine does not have NaN", 1 unless $Config{d_isinf};
my $infinity = ($^O ne 'MSWin32') ? 0+'inf' : '1.#INF';
$infinity = Math::BigInt->binf()->numify() if 65535 > $infinity;
$infinity = +(20**20**20) if 65535 > $infinity;
skip "Your machine seems to not have infinity", 1 if 65535 > $infinity;
eval { next_prime($infinity); };
like($@, qr/must be a positive integer/, "next_prime( infinity )");
}
SKIP: {
skip "Your machine does not have NaN" unless $Config{d_isnan};
my $nan = ($^O ne 'MSWin32') ? 0+'nan' : '1.#IND';
$nan = Math::BigInt->bnan()->numify() if $nan >= 0;
$nan = -sin('inf') if $nan >= 0;
skip "Your machine seems to not have NaN", 1 if $nan >= 0 || $nan =~ /^\d*$/;
eval { next_prime($nan); };
like($@, qr/must be a positive integer/, "next_prime( nan ) [nan = '$nan']");
}
SKIP: {
skip "You need to upgrade either Perl or Carp to avoid invalid non-native inputs from causing a segfault. Makefile.PL should have requested a Carp upgrade.", 1
if $] < 5.008 && $Carp::VERSION < 1.17;
eval { next_prime("11111111111111111111111111111111111111111x"); };
like($@, qr/must be a positive integer/, "next_prime('111...111x')");
}
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