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PJACKLAM / Math-BigInt-2.005002 / xt / author / bcos-mbi-upg-mbf.t 

            

              
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# -*- mode: perl; -*-
# Verify that the output is a Math::BigInt when the output is an integer.
use strict;
use warnings;
use Test::More;
use Math::BigInt;
use Math::BigFloat;
Math::BigInt -> upgrade("Math::BigFloat");
my ($x, $y, $test);
$test = '$x = Math::BigInt -> new(1); $x -> bcos(20);';
note "\n", $test, "\n\n";
$y = eval $test;
die $@ if $@;
subtest $test => sub {
    plan tests => 4;
    is(ref($x), "Math::BigFloat", 'class of $x');
    is($x, "0.54030230586813971740", 'value of $x');
    is($x -> accuracy(), 20, 'accuracy of $x');
    is($x -> precision(), undef, 'precision of $x');
};
$test = '$x = Math::BigInt -> new(1); $x -> bcos(undef, 1);';
note "\n", $test, "\n\n";
$y = eval $test;
die $@ if $@;
subtest $test => sub {
    plan tests => 4;
    is(ref($x), "Math::BigInt", 'class of $x');
    is($x, "1", 'value of $x');         # 0.54030... rounded to integer
    is($x -> accuracy(), undef, 'accuracy of $x');
    is($x -> precision(), 1, 'precision of $x');
};
$test = '$x = Math::BigInt -> new(1); $x -> accuracy(20); $x -> bcos()';
note "\n", $test, "\n\n";
$y = eval $test;
die $@ if $@;
subtest $test => sub {
    plan tests => 4;
    is(ref($x), "Math::BigFloat", 'class of $x');
    is($x, "0.54030230586813971740", 'value of $x');
    is($x -> accuracy(), 20, 'accuracy of $x');
    is($x -> precision(), undef, 'precision of $x');
};
$test = '$x = Math::BigInt -> new(1); $x -> precision(1); $x -> bcos();';
note "\n", $test, "\n\n";
$y = eval $test;
die $@ if $@;
subtest $test => sub {
    plan tests => 4;
    is(ref($x), "Math::BigInt", 'class of $x');
    is($x, "1", 'value of $x');         # 0.54030... rounded to integer
    is($x -> accuracy(), undef, 'accuracy of $x');
    is($x -> precision(), 1, 'precision of $x');
};
done_testing();