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use strict;
use warnings;
use IPC::Open3;
use Test::More;
# Make sure Module::Util::is_valid_module_name agrees with perl for every module
# on CPAN
my @modules;
BEGIN {
require CPAN;
@modules =
map { $_->id }
CPAN::Shell->expand("Module", "/./");
plan tests => 1 + @modules;
use_ok('Module::Util', qw( is_valid_module_name ));
}
# some pragmata that are valid but fail really_valid
my @known_valid = qw(
open
if
sort
);
# build a regex to recognise the names above.
my $known_valid = do { local $" = '|'; qr{^(?:@known_valid)$} };
# Check that the module name is really valid.
# Not all modules reported by CPAN are!
sub really_valid ($) {
my $module = shift;
return 1 if $module =~ $known_valid;
# Check syntax using another perl interpreter. Very time consuming!
my($in, $out, $err);
my $pid = open3($in, $out, $err, $^X, '-c', '-e', "require $module")
or die "Couldn't run $^X: $!";
close $in;
close $err if defined $err;
my $line = <$out>;
close $out;
waitpid($pid, 0);
# if we see syntax OK, the module name must be valid!
my $valid = $line =~ /syntax OK/;
# diag "$line: $valid";
return $valid
}
for my $module (@modules) {
my $valid = really_valid($module);
my $ok = not (is_valid_module_name($module) xor $valid);
ok($ok, "'$module' is ".($valid ? '' : 'not')." valid");
}
__END__
vim: ft=perl ts=8 sts=4 sw=4 sr et
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