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#!/usr/bin/perl -w
# test rounding, accuracy, precision and fallback, round_mode and mixing
# of classes
use strict;
use Test::More tests => 684
+ 26; # own tests
use Math::BigInt 1.70;
use Math::BigFloat 1.43;
use vars qw/$mbi $mbf/;
$mbi = 'Math::BigInt';
$mbf = 'Math::BigFloat';
require 't/mbimbf.inc';
# some tests that won't work with subclasses, since the things are only
# guaranteed in the Math::BigInt/BigFloat (unless subclass chooses to support
# this)
Math::BigInt->round_mode('even'); # reset for tests
Math::BigFloat->round_mode('even'); # reset for tests
is ($Math::BigInt::rnd_mode,'even');
is ($Math::BigFloat::rnd_mode,'even');
my $x = eval '$mbi->round_mode("huhmbi");';
like ($@, qr/^Unknown round mode 'huhmbi' at/);
$x = eval '$mbf->round_mode("huhmbf");';
like ($@, qr/^Unknown round mode 'huhmbf' at/);
# old way (now with test for validity)
$x = eval '$Math::BigInt::rnd_mode = "huhmbi";';
like ($@, qr/^Unknown round mode 'huhmbi' at/);
$x = eval '$Math::BigFloat::rnd_mode = "huhmbf";';
like ($@, qr/^Unknown round mode 'huhmbf' at/);
# see if accessor also changes old variable
$mbi->round_mode('odd'); is ($Math::BigInt::rnd_mode,'odd');
$mbf->round_mode('odd'); is ($Math::BigInt::rnd_mode,'odd');
foreach my $class (qw/Math::BigInt Math::BigFloat/)
{
is ($class->accuracy(5),5); # set A
is ($class->precision(), undef); # and now P must be cleared
is ($class->precision(5),5); # set P
is ($class->accuracy(), undef); # and now A must be cleared
}
foreach my $class (qw/Math::BigInt Math::BigFloat/)
{
$class->accuracy(42);
my $x = $class->new(123); # $x gets A of 42, too!
is ($x->accuracy(),42); # really?
is ($x->accuracy(undef),42); # $x has no A, but the
# global is still in effect for $x
# so the return value of that operation should
# be 42, not undef
is ($x->accuracy(),42); # so $x should still have A = 42
$class->accuracy(undef); # reset for further tests
$class->precision(undef);
}
# bug with flog(Math::BigFloat,Math::BigInt)
$x = Math::BigFloat->new(100);
$x = $x->blog(Math::BigInt->new(10));
is ($x,2);
# bug until v1.88 for sqrt() with enough digits
for my $i (80,88,100)
{
$x = Math::BigFloat->new("1." . ("0" x $i) . "1");
$x = $x->bsqrt;
is ($x, 1);
}
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