xref: /freebsd/crypto/openssl/external/perl/Text-Template-1.56/t/hash.t (revision e0c4386e7e71d93b0edc0c8fa156263fc4a8b0b6) 
1#!perl
2#
3# test apparatus for Text::Template module
4# still incomplete.
5
6use strict;
7use warnings;
8use Test::More tests => 13;
9
10use_ok 'Text::Template' or exit 1;
11
12my $template = 'We will put value of $v (which is "good") here -> {$v}';
13
14my $v = 'oops (main)';
15$Q::v = 'oops (Q)';
16
17my $vars = { 'v' => \'good' };
18
19# (1) Build template from string
20$template = Text::Template->new('type' => 'STRING', 'source' => $template);
21isa_ok $template, 'Text::Template';
22
23# (2) Fill in template in anonymous package
24my $result2 = 'We will put value of $v (which is "good") here -> good';
25my $text = $template->fill_in(HASH => $vars);
26is $text, $result2;
27
28# (3) Did we clobber the main variable?
29is $v, 'oops (main)';
30
31# (4) Fill in same template again
32my $result4 = 'We will put value of $v (which is "good") here -> good';
33$text = $template->fill_in(HASH => $vars);
34is $text, $result4;
35
36# (5) Now with a package
37my $result5 = 'We will put value of $v (which is "good") here -> good';
38$text = $template->fill_in(HASH => $vars, PACKAGE => 'Q');
39is $text, $result5;
40
41# (6) We expect to have clobbered the Q variable.
42is $Q::v, 'good';
43
44# (7) Now let's try it without a package
45my $result7 = 'We will put value of $v (which is "good") here -> good';
46$text = $template->fill_in(HASH => $vars);
47is $text, $result7;
48
49# (8-11) Now what does it do when we pass a hash with undefined values?
50# Roy says it does something bad. (Added for 1.20.)
51my $WARNINGS = 0;
52{
53    local $SIG{__WARN__} = sub { $WARNINGS++ };
54    local $^W = 1;    # Make sure this is on for this test
55    my $template8 = 'We will put value of $v (which is "good") here -> {defined $v ? "bad" : "good"}';
56    my $result8   = 'We will put value of $v (which is "good") here -> good';
57    my $template  = Text::Template->new('type' => 'STRING', 'source' => $template8);
58    my $text = $template->fill_in(HASH => { 'v' => undef });
59
60    # (8) Did we generate a warning?
61    cmp_ok $WARNINGS, '==', 0;
62
63    # (9) Was the output correct?
64    is $text, $result8;
65
66    # (10-11) Let's try that again, with a twist this time
67    $WARNINGS = 0;
68    $text = $template->fill_in(HASH => [ { 'v' => 17 }, { 'v' => undef } ]);
69
70    # (10) Did we generate a warning?
71    cmp_ok $WARNINGS, '==', 0;
72
73    # (11) Was the output correct?
74    SKIP: {
75        skip 'not supported before 5.005', 1 unless $] >= 5.005;
76
77        is $text, $result8;
78    }
79}
80
81# (12) Now we'll test the multiple-hash option  (Added for 1.20.)
82$text = Text::Template::fill_in_string(q{$v: {$v}.  @v: [{"@v"}].},
83    HASH => [
84        { 'v' => 17 },
85        { 'v' => [ 'a', 'b', 'c' ] },
86        { 'v' => \23 }
87    ]
88);
89
90my $result = q{$v: 23.  @v: [a b c].};
91is $text, $result;
92