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#!perl
use strict;
use warnings;
use Test::More tests => 48;
use Math::BigInt;
my $x;
my $y;
###############################################################################
# bdigitsum()
# Finite numbers.
$x = Math::BigInt -> new("123");
isa_ok($x, 'Math::BigInt');
$y = $x -> bdigitsum();
isa_ok($y, 'Math::BigInt');
is($x, "6");
is($y, "6");
$x = Math::BigInt -> new("0");
isa_ok($x, 'Math::BigInt');
$y = $x -> bdigitsum();
isa_ok($y, 'Math::BigInt');
is($x, "0");
is($y, "0");
$x = Math::BigInt -> new("-123");
isa_ok($x, 'Math::BigInt');
$y = $x -> bdigitsum();
isa_ok($y, 'Math::BigInt');
is($x, "6");
is($y, "6");
# Infinity
$x = Math::BigInt -> binf("+");
isa_ok($x, 'Math::BigInt');
$y = $x -> bdigitsum();
isa_ok($y, 'Math::BigInt');
is($x, "NaN");
is($y, "NaN");
$x = Math::BigInt -> binf("-");
isa_ok($x, 'Math::BigInt');
$y = $x -> bdigitsum();
isa_ok($y, 'Math::BigInt');
is($x, "NaN");
is($y, "NaN");
# NaN
$x = Math::BigInt -> bnan();
isa_ok($x, 'Math::BigInt');
$y = $x -> bdigitsum();
isa_ok($y, 'Math::BigInt');
is($x, "NaN");
is($y, "NaN");
###############################################################################
# digitsum()
# Finite numbers.
$x = Math::BigInt -> new("123");
isa_ok($x, 'Math::BigInt');
$y = $x -> digitsum();
isa_ok($y, 'Math::BigInt');
is($x, "123");
is($y, "6");
$x = Math::BigInt -> new("0");
isa_ok($x, 'Math::BigInt');
$y = $x -> digitsum();
isa_ok($y, 'Math::BigInt');
is($x, "0");
is($y, "0");
$x = Math::BigInt -> new("-123");
isa_ok($x, 'Math::BigInt');
$y = $x -> digitsum();
isa_ok($y, 'Math::BigInt');
is($x, "-123");
is($y, "6");
# Infinity
$x = Math::BigInt -> binf("+");
isa_ok($x, 'Math::BigInt');
$y = $x -> digitsum();
isa_ok($y, 'Math::BigInt');
is($x, "inf");
is($y, "NaN");
$x = Math::BigInt -> binf("-");
isa_ok($x, 'Math::BigInt');
$y = $x -> digitsum();
isa_ok($y, 'Math::BigInt');
is($x, "-inf");
is($y, "NaN");
# NaN
$x = Math::BigInt -> bnan();
isa_ok($x, 'Math::BigInt');
$y = $x -> digitsum();
isa_ok($y, 'Math::BigInt');
is($x, "NaN");
is($y, "NaN");
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