Math-BigInt/xt/author/new-mbi.t
# -*- mode: perl; -*-
use strict;
use warnings;
use Test::More tests => 106;
use Scalar::Util qw< refaddr >;
my $class;
BEGIN { $class = 'Math::BigInt'; }
BEGIN { use_ok($class); }
while (<DATA>) {
s/#.*$//; # remove comments
s/\s+$//; # remove trailing whitespace
next unless length; # skip empty lines
my ($in0, $out0) = split /:/;
my $x;
my $test = qq|\$x = $class -> new("$in0");|;
my $desc = $test;
eval $test;
die $@ if $@; # this should never happen
subtest $desc, sub {
plan tests => 2,
# Check output.
is(ref($x), $class, "output arg is a $class");
is($x, $out0, 'output arg has the right value');
};
}
# new()
{
my $x = $class -> new();
subtest qq|\$x = $class -> new();|, => sub {
plan tests => 2;
is(ref($x), $class, "output arg is a $class");
is($x, "0", 'output arg has the right value');
};
}
# new("")
{
no warnings "numeric";
my $x = $class -> new("");
subtest qq|\$x = $class -> new("");|, => sub {
plan tests => 2;
is(ref($x), $class, "output arg is a $class");
#is($x, "0", 'output arg has the right value');
is($x, "NaN", 'output arg has the right value');
};
}
# new(undef)
{
no warnings "uninitialized";
my $x = $class -> new(undef);
subtest qq|\$x = $class -> new(undef);|, => sub {
plan tests => 2;
is(ref($x), $class, "output arg is a $class");
is($x, "0", 'output arg has the right value');
};
}
# new($x)
#
# In this case, when $x isa Math::BigInt, only the sign and value should be
# copied from $x, not the accuracy or precision.
{
my ($a, $p, $x, $y);
$a = $class -> accuracy(); # get original
$class -> accuracy(4711); # set new global value
$x = $class -> new("314"); # create object
$x -> accuracy(41); # set instance value
$y = $class -> new($x); # create new object
is($y -> accuracy(), 4711, 'object has the global accuracy');
$class -> accuracy($a); # reset
$p = $class -> precision(); # get original
$class -> precision(4711); # set new global value
$x = $class -> new("314"); # create object
$x -> precision(41); # set instance value
$y = $class -> new($x); # create new object
is($y -> precision(), 4711, 'object has the global precision');
$class -> precision($p); # reset
}
# Make sure that library thingies are indeed copied.
{
my ($x, $y);
$x = $class -> new("314"); # create object
$y = $class -> new($x); # create new object
subtest 'library thingy is copied' => sub {
my @keys = ('value');
plan tests => scalar @keys;
for my $key (@keys) {
isnt(refaddr($y -> {$key}), refaddr($x -> {$key}),
'library thingy is a copy');
}
};
}
__END__
NaN:NaN
inf:inf
infinity:inf
+inf:inf
+infinity:inf
-inf:-inf
-infinity:-inf
# This is the same data as in from_bin-mbf.t, except that some of them are
# commented out, since new() only treats input as binary if it has a "0b" or
# "0B" prefix, possibly with a leading "+" or "-" sign. Duplicates from above
# are also commented out.
0b1p+0:1
0b.1p+1:1
0b.01p+2:1
0b.001p+3:1
0b.0001p+4:1
0b10p-1:1
0b100p-2:1
0b1000p-3:1
-0b1p+0:-1
0b0p+0:0
0b0p+7:0
0b0p-7:0
0b0.p+0:0
0b.0p+0:0
0b0.0p+0:0
0b1100101011111110:51966
0B1100101011111110:51966
b1100101011111110:51966
B1100101011111110:51966
#1100101011111110:51966
0b1.1001p+3:NaN
0b10010.001101p-1:NaN
-0b.11110001001101010111100110111101111p+31:NaN
0b10.0100011010001010110011110001001101p+34:39093746765
0b.p+0:NaN
#NaN:NaN
#+inf:NaN
#-inf:NaN
# This is more or less the same data as in from_oct-mbf.t, except that some of
# them are commented out, since new() does not consider a number with just a
# leading zero to be an octal number. Duplicates from above are also commented
# out.
# Without "0o" prefix.
001p+0:1
00.4p+1:1
00.2p+2:1
00.1p+3:1
00.04p+4:1
02p-1:1
04p-2:1
010p-3:1
-01p+0:-1
00p+0:0
00p+7:0
00p-7:0
00.p+0:0
00.0p+0:0
#145376:51966
#0145376:51966
#00145376:51966
03.1p+2:NaN
022.15p-1:NaN
-00.361152746757p+32:NaN
044.3212636115p+30:39093746765
0.p+0:NaN
.p+0:NaN
# With "0o" prefix.
0o01p+0:1
0o0.4p+1:1
0o0.2p+2:1
0o0.1p+3:1
0o0.04p+4:1
0o02p-1:1
0o04p-2:1
0o010p-3:1
-0o1p+0:-1
0o0p+0:0
0o0p+7:0
0o0p-7:0
0o0.p+0:0
0o.0p+0:0
0o0.0p+0:0
0o145376:51966
0O145376:51966
o145376:51966
O145376:51966
0o3.1p+2:NaN
0o22.15p-1:NaN
-0o0.361152746757p+32:NaN
0o44.3212636115p+30:39093746765
0o.p+0:NaN
#NaN:NaN
#+inf:NaN
#-inf:NaN
# This is the same data as in from_hex-mbf.t, except that some of them are
# commented out, since new() only treats input as hexadecimal if it has a "0x"
# or "0X" prefix, possibly with a leading "+" or "-" sign.
0x1p+0:1
0x.8p+1:1
0x.4p+2:1
0x.2p+3:1
0x.1p+4:1
0x2p-1:1
0x4p-2:1
0x8p-3:1
-0x1p+0:-1
0x0p+0:0
0x0p+7:0
0x0p-7:0
0x0.p+0:0
0x.0p+0:0
0x0.0p+0:0
0xcafe:51966
0Xcafe:51966
xcafe:51966
Xcafe:51966
#cafe:51966
0x1.9p+3:NaN
0x12.34p-1:NaN
-0x.789abcdefp+32:NaN
0x12.3456789ap+31:39093746765
0x.p+0:NaN
#NaN:NaN
#+inf:NaN
#-inf:NaN