1#!./perl
2
3BEGIN {
4    chdir 't' if -d 't';
5    @INC = '../lib';
6    require "./test.pl";
7}
8
9plan tests => 36;
10
11use_ok('Config');
12
13# Some (safe?) bets.
14
15ok(keys %Config > 500, "Config has more than 500 entries");
16
17ok(each %Config);
18
19is($Config{PERL_REVISION}, 5, "PERL_REVISION is 5");
20
21# Check that old config variable names are aliased to their new ones.
22my %grandfathers = ( PERL_VERSION       => 'PATCHLEVEL',
23                     PERL_SUBVERSION    => 'SUBVERSION',
24                     PERL_CONFIG_SH     => 'CONFIG'
25                   );
26while( my($new, $old) = each %grandfathers ) {
27    isnt($Config{$new}, undef,       "$new is defined");
28    is($Config{$new}, $Config{$old}, "$new is aliased to $old");
29}
30
31ok( exists $Config{cc},      "has cc");
32
33ok( exists $Config{ccflags}, "has ccflags");
34
35ok(!exists $Config{python},  "has no python");
36
37ok( exists $Config{d_fork},  "has d_fork");
38
39ok(!exists $Config{d_bork},  "has no d_bork");
40
41like($Config{ivsize},     qr/^(4|8)$/, "ivsize is 4 or 8 (it is $Config{ivsize})");
42
43# byteorder is virtual, but it has rules. 
44
45like($Config{byteorder}, qr/^(1234|4321|12345678|87654321)$/, "byteorder is 1234 or 4321 or 12345678 or 87654321 (it is $Config{byteorder})");
46
47is(length $Config{byteorder}, $Config{ivsize}, "byteorder is as long as ivsize (which is $Config{ivsize})");
48
49# ccflags_nolargefiles is virtual, too.
50
51ok(exists $Config{ccflags_nolargefiles}, "has ccflags_nolargefiles");
52
53# Utility functions.
54
55{
56    # make sure we can export what we say we can export.
57    package Foo;
58    my @exports = qw(myconfig config_sh config_vars config_re);
59    Config->import(@exports);
60    foreach my $func (@exports) {
61	::ok( __PACKAGE__->can($func), "$func exported" );
62    }
63}
64
65like(Config::myconfig(),       qr/osname=\Q$Config{osname}\E/,   "myconfig");
66like(Config::config_sh(),      qr/osname='\Q$Config{osname}\E'/, "config_sh");
67like(join("\n", Config::config_re('c.*')),
68			       qr/^c.*?=/,                   'config_re' );
69
70my $out = tie *STDOUT, 'FakeOut';
71
72Config::config_vars('cc');
73my $out1 = $$out;
74$out->clear;
75
76Config::config_vars('d_bork');
77my $out2 = $$out;
78$out->clear;
79
80untie *STDOUT;
81
82like($out1, qr/^cc='\Q$Config{cc}\E';/, "config_vars cc");
83like($out2, qr/^d_bork='UNKNOWN';/, "config_vars d_bork is UNKNOWN");
84
85# Read-only.
86
87undef $@;
88eval { $Config{d_bork} = 'borkbork' };
89like($@, qr/Config is read-only/, "no STORE");
90
91ok(!exists $Config{d_bork}, "still no d_bork");
92
93undef $@;
94eval { delete $Config{d_fork} };
95like($@, qr/Config is read-only/, "no DELETE");
96
97ok( exists $Config{d_fork}, "still d_fork");
98
99undef $@;
100eval { %Config = () };
101like($@, qr/Config is read-only/, "no CLEAR");
102
103ok( exists $Config{d_fork}, "still d_fork");
104
105{
106    package FakeOut;
107
108    sub TIEHANDLE {
109	bless(\(my $text), $_[0]);
110    }
111
112    sub clear {
113	${ $_[0] } = '';
114    }
115
116    sub PRINT {
117	my $self = shift;
118	$$self .= join('', @_);
119    }
120}
121
122# Signal-related variables
123# (this is actually a regression test for Configure.)
124
125is($Config{sig_num_init}  =~ tr/,/,/, $Config{sig_size}, "sig_num_init size");
126is($Config{sig_name_init} =~ tr/,/,/, $Config{sig_size}, "sig_name_init size");
127