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#!/usr/bin/perl -w
use Test;
use strict;
BEGIN
{
$| = 1;
# to locate the testing files
my $location = $0; $location =~ s/isa.t//i;
if ($ENV{PERL_CORE})
{
# testing with the core distribution
@INC = qw(../t/lib);
}
unshift @INC, qw(../lib);
if (-d 't')
{
chdir 't';
require File::Spec;
unshift @INC, File::Spec->catdir(File::Spec->updir, $location);
}
else
{
unshift @INC, $location;
}
print "# INC = @INC\n";
plan tests => 7;
}
use Math::BigInt::Subclass;
use Math::BigFloat::Subclass;
use Math::BigInt;
use Math::BigFloat;
use vars qw ($class $try $x $y $f @args $ans $ans1 $ans1_str $setup $CL);
$class = "Math::BigInt::Subclass";
$CL = "Math::BigInt::Calc";
# Check that a subclass is still considered a BigInt
ok ($class->new(123)->isa('Math::BigInt'),1);
# ditto for plain Math::BigInt
ok (Math::BigInt->new(123)->isa('Math::BigInt'),1);
# But Math::BigFloats aren't
ok (Math::BigFloat->new(123)->isa('Math::BigInt') || 0,0);
# see what happens if we feed a Math::BigFloat into new()
$x = Math::BigInt->new(Math::BigFloat->new(123));
ok (ref($x),'Math::BigInt');
ok ($x->isa('Math::BigInt'),1);
# ditto for subclass
$x = Math::BigInt->new(Math::BigFloat->new(123));
ok (ref($x),'Math::BigInt');
ok ($x->isa('Math::BigInt'),1);
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