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[perl5.git] / lib / Pod / t / Usage.t
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1#!perl
2use strict;
3BEGIN {
4 chdir 't' if -d 't';
5 @INC = '../lib';
6}
7
8use File::Basename;
9use File::Spec;
10use Test::More;
11plan tests => 8;
12
13use_ok( 'Pod::Usage' );
14
15# Test verbose level 0
16my $vbl_0 = << 'EOMSG';
17Usage:
18 The SYNOPSIS section is displayed with -verbose >= 0.
19
20EOMSG
21my $fake_out = tie *FAKEOUT, 'CatchOut';
22pod2usage({ -verbose => 0, -exit => 'noexit', -output => \*FAKEOUT });
23is( $$fake_out, $vbl_0, 'Verbose level 0' );
24
25my $msg = "Prefix message for pod2usage()";
26$$fake_out = '';
27pod2usage({ -verbose => 0, -exit => 'noexit', -output => \*FAKEOUT,
28 -message => $msg });
29is( $$fake_out, "$msg\n$vbl_0", '-message parameter' );
30
31SKIP: {
32 my( $file, $path ) = fileparse( $0 );
33 skip( 'File in current directory', 2 ) if -e $file;
34 $$fake_out = '';
35 eval {
36 pod2usage({ -verbose => 0, -exit => 'noexit',
37 -output => \*FAKEOUT, -input => $file });
38 };
39 like( $@, qr/^Can't open $file for reading:/,
40 'File not found without -pathlist' );
41
42 eval {
43 pod2usage({ -verbose => 0, -exit => 'noexit',
44 -output => \*FAKEOUT, -input => $file,
45 -pathlist => $path });
46 };
47 is( $$fake_out, $vbl_0, '-pathlist parameter' );
48}
49
50{ # Test exit status from pod2usage()
51 my $exit = 42;
52 my $dev_null = File::Spec->devnull;
53 my $args = join ", ", (
54 "-verbose => 0",
55 "-exit => $exit",
56 "-output => q[$dev_null]",
57 "-input => q[$0]",
58 );
59 my $prg = qq[pod2usage({ $args })];
60 my @cmd = ( $^X, '-I../lib', '-MPod::Usage', '-e', $prg );
61
62 is( system( @cmd ) >> 8, $exit, 'Exit status of pod2usage()' );
63}
64
65# Test verbose level 1
66my $vbl_1 = << 'EOMSG';
67Usage:
68 The SYNOPSIS section is displayed with -verbose >= 0.
69
70Options:
71 The OPTIONS section is displayed with -verbose >= 1.
72
73Arguments:
74 The ARGUMENTS section is displayed with -verbose >= 1.
75
76EOMSG
77$$fake_out = '';
78pod2usage( { -verbose => 1, -exit => 'noexit', -output => \*FAKEOUT } );
79is( $$fake_out, $vbl_1, 'Verbose level 1' );
80
81# Test verbose level 2
82$$fake_out = '';
83require Pod::Text; # Pod::Usage->isa( 'Pod::Text' )
84
85( my $p2tp = new Pod::Text )->parse_from_file( $0, \*FAKEOUT );
86my $pod2text = $$fake_out;
87
88$$fake_out = '';
89pod2usage( { -verbose => 2, -exit => 'noexit', -output => \*FAKEOUT } );
90my $pod2usage = $$fake_out;
91
92is( $pod2usage, $pod2text, 'Verbose level >= 2 eq pod2text' );
93
94
95package CatchOut;
96sub TIEHANDLE { bless \( my $self ), shift }
97sub PRINT { my $self = shift; $$self .= $_[0] }
98
99__END__
100
101=head1 NAME
102
103Usage.t - Tests for Pod::Usage
104
105=head1 SYNOPSIS
106
107The B<SYNOPSIS> section is displayed with -verbose >= 0.
108
109=head1 DESCRIPTION
110
111Testing Pod::Usage. This section is not displayed with -verbose < 2.
112
113=head1 OPTIONS
114
115The B<OPTIONS> section is displayed with -verbose >= 1.
116
117=head1 ARGUMENTS
118
119The B<ARGUMENTS> section is displayed with -verbose >= 1.
120
121=head1 AUTHOR
122
12320020105 Abe Timmerman <abe@ztreet.demon.nl>
124
125=cut