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#!/usr/bin/perl -w
# Copyright 2011, 2013 Kevin Ryde
# 0-examples-xrefs.t is shared by several distributions.
#
# 0-examples-xrefs.t is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3, or (at your option) any
# later version.
#
# 0-examples-xrefs.t is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this file. If not, see <http://www.gnu.org/licenses/>.
BEGIN { require 5 }
use strict;
use ExtUtils::Manifest;
use Test::More;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
my $manifest = ExtUtils::Manifest::maniread();
my @example_files = grep m{examples/.*\.pl$}, keys %$manifest;
my @lib_files = grep m{lib/.*\.(pm|pod)$}, keys %$manifest;
sub any_file_contains_example {
my ($example) = @_;
my $filename;
foreach $filename (@lib_files) {
if (pod_contains_example($filename, $example)) {
return 1;
}
}
foreach $filename (@example_files) {
if ($filename ne $example
&& raw_contains_example($filename, $example)) {
return 1;
}
}
return 0;
}
sub pod_contains_example {
my ($filename, $example) = @_;
open FH, "< $filename" or die "Cannot open $filename: $!";
my $content = do { local $/; <FH> }; # slurp
close FH or die "Error closing $filename: $!";
return scalar ($content =~ /F<\Q$example\E>
|F<examples>\s+directory
/xs);
}
sub raw_contains_example {
my ($filename, $example) = @_;
$example =~ s{^examples/}{};
open FH, "< $filename" or die "Cannot open $filename: $!";
my $ret = scalar (grep /\b\Q$example\E\b/, <FH>);
close FH or die "Error closing $filename: $!";
return $ret > 0;
}
plan tests => scalar(@example_files) + 1;
my $example;
foreach $example (@example_files) {
is (any_file_contains_example($example), 1,
"$example mentioned in some lib/ file");
}
ok(1);
exit 0;
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