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#!perl
use strict;
use warnings;
use Test::More tests => 55;
# test whether Math::BigInt->config() and Math::BigFloat->config() works
use Math::BigInt lib => 'Calc';
use Math::BigFloat;
my $mbi = 'Math::BigInt';
my $mbf = 'Math::BigFloat';
##############################################################################
# Math::BigInt
{
can_ok($mbi, 'config');
my $cfg = $mbi->config();
is(ref($cfg), 'HASH', 'ref() of output from $mbi->config()');
is($cfg->{lib}, 'Math::BigInt::Calc', 'lib');
is($cfg->{lib_version}, $Math::BigInt::Calc::VERSION, 'lib_version');
is($cfg->{class}, $mbi, 'class');
is($cfg->{upgrade} || '', '', 'upgrade');
is($cfg->{div_scale}, 40, 'div_Scale');
is($cfg->{precision} || 0, 0, 'precision'); # should test for undef
is($cfg->{accuracy} || 0, 0, 'accuracy');
is($cfg->{round_mode}, 'even', 'round_mode');
is($cfg->{trap_nan}, 0, 'trap_nan');
is($cfg->{trap_inf}, 0, 'trap_inf');
is($mbi->config('lib'), 'Math::BigInt::Calc', 'config("lib")');
# can set via hash ref?
$cfg = $mbi->config({ trap_nan => 1 });
is($cfg->{trap_nan}, 1, 'can set "trap_nan" via hash ref');
# reset for later
$mbi->config(trap_nan => 0);
}
##############################################################################
# Math::BigFloat
{
can_ok($mbf, 'config');
my $cfg = $mbf->config();
is(ref($cfg), 'HASH', 'ref() of output from $mbf->config()');
is($cfg->{lib}, 'Math::BigInt::Calc', 'lib');
is($cfg->{with}, 'Math::BigInt::Calc', 'with');
is($cfg->{lib_version}, $Math::BigInt::Calc::VERSION, 'lib_version');
is($cfg->{class}, $mbf, 'class');
is($cfg->{upgrade} || '', '', 'upgrade');
is($cfg->{div_scale}, 40, 'div_Scale');
is($cfg->{precision} || 0, 0, 'precision'); # should test for undef
is($cfg->{accuracy} || 0, 0, 'accuracy');
is($cfg->{round_mode}, 'even', 'round_mode');
is($cfg->{trap_nan}, 0, 'trap_nan');
is($cfg->{trap_inf}, 0, 'trap_inf');
is($mbf->config('lib'), 'Math::BigInt::Calc', 'config("lib")');
# can set via hash ref?
$cfg = $mbf->config({ trap_nan => 1 });
is($cfg->{trap_nan}, 1, 'can set "trap_nan" via hash ref');
# reset for later
$mbf->config(trap_nan => 0);
}
##############################################################################
# test setting values
my $test = {
trap_nan => 1,
trap_inf => 1,
accuracy => 2,
precision => 3,
round_mode => 'zero',
div_scale => '100',
upgrade => 'Math::BigInt::SomeClass',
downgrade => 'Math::BigInt::SomeClass',
};
my $c;
foreach my $key (keys %$test) {
# see if setting in MBI works
eval { $mbi->config($key => $test->{$key}); };
$c = $mbi->config();
is("$key = $c->{$key}", "$key = $test->{$key}", "$key = $test->{$key}");
$c = $mbf->config();
# see if setting it in MBI leaves MBF alone
ok(($c->{$key} || 0) ne $test->{$key},
"$key ne \$c->{$key}");
# see if setting in MBF works
eval { $mbf->config($key => $test->{$key}); };
$c = $mbf->config();
is("$key = $c->{$key}", "$key = $test->{$key}", "$key = $test->{$key}");
}
##############################################################################
# test setting illegal keys (should croak)
eval { $mbi->config('some_garbage' => 1); };
like($@,
qr/ ^ Illegal \s+ key\(s\) \s+ 'some_garbage' \s+ passed \s+ to \s+
Math::BigInt->config\(\) \s+ at
/x,
'Passing invalid key to Math::BigInt->config() causes an error.');
eval { $mbf->config('some_garbage' => 1); };
like($@,
qr/ ^ Illegal \s+ key\(s\) \s+ 'some_garbage' \s+ passed \s+ to \s+
Math::BigFloat->config\(\) \s+ at
/x,
'Passing invalid key to Math::BigFloat->config() causes an error.');
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