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#!perl
# test calling conventions, and :constant overloading
use strict;
use warnings;
use lib 't';
my $VERSION = '1.999823'; # adjust manually to match latest release
use Test::More tests => 5;
##############################################################################
package Math::BigInt::Test;
use Math::BigInt;
our @ISA = qw/Math::BigInt/; # subclass of MBI
use overload;
##############################################################################
package Math::BigFloat::Test;
use Math::BigFloat;
our @ISA = qw/Math::BigFloat/; # subclass of MBF
use overload;
##############################################################################
package main;
use Math::BigInt try => 'Calc';
use Math::BigFloat;
my ($x, $expected, $try);
my $class = 'Math::BigInt';
# test whether use Math::BigInt qw/VERSION/ works
$try = "use $class " . ($VERSION . '1') . ";";
$try .= ' $x = $class->new(123); $x = "$x";';
eval $try;
like($@, qr/ ^ Math::BigInt \s+ ( version \s+ )? \S+ \s+ required--this \s+
is \s+ only \s+ version \s+ \S+ /x,
$try);
# test whether fallback to calc works
$try = qq|use $class $VERSION, "try", "foo, bar, ";|
. qq| $class\->config("lib");|;
$expected = eval $try;
like($expected, qr/^Math::BigInt::(Fast)?Calc\z/, $try);
# test whether constant works or not, also test for qw($VERSION)
# bgcd() is present in subclass, too
$try = qq|use $class $VERSION, "bgcd", ":constant";|
. q| $x = 2**150; bgcd($x); $x = "$x";|;
$expected = eval $try;
is($expected, "1427247692705959881058285969449495136382746624", $try);
# test whether Math::BigInt::Scalar via use works (w/ dff. spellings of calc)
$try = qq|use $class $VERSION, "lib", "Scalar";|
. q| $x = 2**10; $x = "$x";|;
$expected = eval $try;
is($expected, "1024", $try);
$try = qq|use $class $VERSION, "lib", "$class\::Scalar";|
. q| $x = 2**10; $x = "$x";|;
$expected = eval $try;
is($expected, "1024", $try);
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