6 use Test::More tests => 66;
8 # Default: upgrade => "Math::BigFloat", downgrade => "Math::BigInt";
11 my $class = "Math::BigInt";
14 ###############################################################################
19 note("\n\n" . $x . "\n\n");
22 is(ref($x), $class, "\$x = 1 + inf makes a $class");
23 is($x->bstr(), "inf", '$x = 1 + inf; $x->bstr() = "inf"');
26 is(ref($x), $class, "\$x = 1 * inf makes a $class");
27 is($x->bstr(), "inf", '$x = 1 * inf; $x->bstr() = "inf"');
29 # these don't work without exporting inf()
31 is(ref($x), $class, "\$x = inf makes a $class");
32 is($x->bstr(), "inf", '$x = inf; $x->bstr() = "inf"');
35 is(ref($x), $class, "\$x = inf + inf makes a $class");
36 is($x->bstr(), "inf", '$x = inf + inf; $x->bstr() = "inf"');
39 is(ref($x), $class, "\$x = inf * inf makes a $class");
40 is($x->bstr(), "inf", '$x = inf * inf; $x->bstr() = "inf"');
42 ###############################################################################
47 is(ref($x), $class, "\$x = 1 + NaN makes a $class");
48 is($x->bstr(), "NaN", '$x = 1 + NaN; $x->bstr() = "NaN"');
51 is(ref($x), $class, "\$x = 1 * NaN makes a $class");
52 is($x->bstr(), "NaN", '$x = 1 * NaN; $x->bstr() = "NaN"');
54 # these don't work without exporting NaN()
56 is(ref($x), $class, "\$x = NaN makes a $class");
57 is($x->bstr(), "NaN", '$x = NaN; $x->bstr() = "NaN"');
60 is(ref($x), $class, "\$x = NaN + NaN makes a $class");
61 is($x->bstr(), "NaN", '$x = NaN + NaN; $x->bstr() = "NaN"');
64 is(ref($x), $class, "\$x = NaN * NaN makes a $class");
65 is($x->bstr(), "NaN", '$x = NaN * NaN; $x->bstr() = "NaN"');
67 ###############################################################################
71 # these don't work without exporting NaN() or inf()
74 is(ref($x), $class, "\$x = NaN + inf makes a $class");
75 is($x->bstr(), "NaN", '$x = NaN + inf; $x->bstr() = "NaN"');
78 is(ref($x), $class, "\$x = NaN * inf makes a $class");
79 is($x->bstr(), "NaN", '$x = NaN * inf; $x->bstr() = "NaN"');
82 is(ref($x), $class, "\$x = inf * NaN makes a $class");
83 is($x->bstr(), "NaN", '$x = inf * NaN; $x->bstr() = "NaN"');
85 ###############################################################################
86 # inf and NaN as strings.
88 for my $nan (qw/ nan naN nAn nAN Nan NaN NAn NAN /) {
90 is($x->bstr(), "NaN", qq|\$x = 1 + "$nan"|);
91 is(ref($x), $class, "\$x is a $class");
94 for my $inf (qw/ inf inF iNf iNF Inf InF INf INF
95 infinity Infinity InFiNiTy iNfInItY
99 is($x->bstr(), "inf", qq|\$x = 1 + "$inf"|);
100 is(ref($x), $class, "\$x is a $class");