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#!/usr/bin/perl -w
use Test;
use strict;
BEGIN
{
$| = 1;
# to locate the testing files
my $location = $0; $location =~ s/upgradef.t//i;
if ($ENV{PERL_CORE})
{
# testing with the core distribution
@INC = qw(../t/lib);
}
unshift @INC, qw(../lib); # to locate the modules
if (-d 't')
{
chdir 't';
require File::Spec;
unshift @INC, File::Spec->catdir(File::Spec->updir, $location);
}
else
{
unshift @INC, $location;
}
print "# INC = @INC\n";
plan tests => 0
+ 6; # our own tests
}
###############################################################################
package Math::BigFloat::Test;
use Math::BigFloat;
require Exporter;
use vars qw/@ISA/;
@ISA = qw/Exporter Math::BigFloat/;
use overload;
sub isa
{
my ($self,$class) = @_;
return if $class =~ /^Math::Big(Int|Float)/; # we aren't one of these
UNIVERSAL::isa($self,$class);
}
sub bmul
{
return __PACKAGE__->new(123);
}
sub badd
{
return __PACKAGE__->new(321);
}
###############################################################################
package main;
# use Math::BigInt upgrade => 'Math::BigFloat';
use Math::BigFloat upgrade => 'Math::BigFloat::Test';
use vars qw ($scale $class $try $x $y $z $f @args $ans $ans1 $ans1_str $setup
$ECL $CL);
$class = "Math::BigFloat";
$CL = "Math::BigInt::Calc";
$ECL = "Math::BigFloat::Test";
ok (Math::BigFloat->upgrade(),$ECL);
ok (Math::BigFloat->downgrade()||'','');
$x = $class->new(123); $y = $ECL->new(123); $z = $x->bmul($y);
ok (ref($z),$ECL); ok ($z,123);
$x = $class->new(123); $y = $ECL->new(123); $z = $x->badd($y);
ok (ref($z),$ECL); ok ($z,321);
# not yet:
# require 'upgrade.inc'; # all tests here for sharing
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