#!perl

use warnings;
use File::Basename;
use File::Spec;
use Test::More;
plan tests => 7;

use Pod::Usage;

# Test verbose level 0
my $vbl_0 = << 'EOMSG';
Usage:
    The SYNOPSIS section is displayed with -verbose >= 0.

EOMSG
my $fake_out = \$('');
open my $fake_out_fh, '>>', $fake_out;
pod2usage(\%( verbose => 0, exit => 'noexit', output => $fake_out_fh ));
is( $$fake_out, $vbl_0, 'Verbose level 0' );

my $msg = "Prefix message for pod2usage()";
$$fake_out = '';
pod2usage(\%( verbose => 0, exit => 'noexit', output => $fake_out_fh,
              message => $msg ));
is( $$fake_out, "$msg\n$vbl_0", 'message parameter' );

SKIP: do {
    my @( $file, $path, _ ) =  fileparse( $^PROGRAM_NAME );
    skip( 'File in current directory', 2 ) if -e $file; 
    $$fake_out = '';
    try {
        pod2usage(\%( verbose => 0, exit => 'noexit', 
                    output => $fake_out_fh, input => $file ));
    };
    like( $^EVAL_ERROR->message, qr/^Can't open $file/, 
          'File not found without -pathlist' );

    try {
        pod2usage(\%( verbose => 0, exit => 'noexit',
                    output => $fake_out_fh, input => $file, 
                    pathlist => $path ));
    };
    is( $$fake_out, $vbl_0, '-pathlist parameter' );
};

SKIP: do { # Test exit status from pod2usage()
    skip "Exit status broken on Mac OS", 1 if $^OS_NAME eq 'MacOS';
    my $exit = ($^OS_NAME eq 'VMS' ?? 2 !! 42);
    my $dev_null = File::Spec->devnull;
    my $args = join ", ", @( (
        "verbose => 0", 
        "exit    => $exit",
        "output  => q\{$dev_null\}",
        "input   => q\{$^PROGRAM_NAME\}",
    ));
    my $cq = (($^OS_NAME eq 'MSWin32'
               || $^OS_NAME eq 'NetWare'
               || $^OS_NAME eq 'VMS') ?? '"'
              !! "");
    my @params = @( "$($cq)-I../lib$cq",  "$($cq)-MPod::Usage$cq", '-e' );
    my $prg = qq[$($cq)pod2usage(\\\%( $args ))$cq];
    my @cmd = @( $^EXECUTABLE_NAME, < @params, $prg );

    print $^STDOUT, "# cmd = $(join ' ',@cmd)\n";

    is( system( < @cmd ) >> 8, $exit, 'Exit status of pod2usage()' );
};

# Test verbose level 1
my $vbl_1 = << 'EOMSG';
Usage:
    The SYNOPSIS section is displayed with -verbose >= 0.

Options:
    The OPTIONS section is displayed with -verbose >= 1.

Arguments:
    The ARGUMENTS section is displayed with -verbose >= 1.

EOMSG
$$fake_out = '';
pod2usage( \%( verbose => 1, exit => 'noexit', output => $fake_out_fh ) );
is( $$fake_out, $vbl_1, 'Verbose level 1' );

# Test verbose level 2
$$fake_out = '';
require Pod::Text; # Pod::Usage->isa( 'Pod::Text' )

( my $p2tp = Pod::Text->new() )->parse_from_file( $^PROGRAM_NAME, $fake_out_fh );
my $pod2text = $$fake_out;

$$fake_out = '';
pod2usage( \%( verbose => 2, exit => 'noexit', output => $fake_out_fh ) );
my $pod2usage = $$fake_out;

is( $pod2usage, $pod2text, 'Verbose level >= 2 eq pod2text' );


__END__

=head1 NAME

Usage.t - Tests for Pod::Usage

=head1 SYNOPSIS

The B<SYNOPSIS> section is displayed with -verbose >= 0.

=head1 DESCRIPTION

Testing Pod::Usage. This section is not displayed with -verbose < 2.

=head1 OPTIONS

The B<OPTIONS> section is displayed with -verbose >= 1.

=head1 ARGUMENTS

The B<ARGUMENTS> section is displayed with -verbose >= 1.

=head1 AUTHOR

20020105 Abe Timmerman <abe@ztreet.demon.nl>

=cut