1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
# -*- mode: perl; -*-
use strict;
use warnings;
use Test::More;
BEGIN {
eval "use Math::BigRat";
plan skip_all => 'Math::BigRat required for these tests' if $@;
}
plan tests => 10;
use bignum upgrade => undef;
is(bignum -> downgrade(), "Math::BigInt",
"bignum's upgrade class is Math::BigInt");
is(bignum -> upgrade(), undef,
"bignum's downgrade class is undefined");
is(Math::BigInt -> upgrade(), undef,
"Math::BigInt's upgrade class is undefined");
is(Math::BigFloat -> downgrade(), "Math::BigInt",
"Math::BigFloat's downgrade class is Math::BigInt");
my $i1 = 7;
my $i2 = 2;
my $f1 = 3.75;
my $f2 = 1.25;
is(ref($i1), "Math::BigInt", "literal $i1 is a Math::BigInt");
is(ref($f1), "Math::BigFloat", "literal $f1 is a Math::BigFloat");
# Verify that the result is not upgraded to a Math::BigFloat.
cmp_ok($i1/$i2, "==", "3", "$i1/$i2 is 3");
is(ref($i1/$i2), "Math::BigInt",
"$i1/$i2 is 3 as a Math::BigInt due to no upgrading");
# Verify that the result is downgraded to a Math::BigInt.
cmp_ok($f1/$f2, "==", "3", "$f1/$f2 is 3");
is(ref($f1/$f2), "Math::BigInt",
"$f1/$f2 is 3 as a Math::BigInt due to downgrading");
|
