Validation rules DSL syntax is not checked (at least in 'like' rules) which may lead to allowing invalid data.

[allter]

Validation rules DSL syntax is not checked (at least in 'like' rules).

This may lead to silently passing through invalid data when programmer makes a mistake.

In the following example rules 'like' and 'max_length' are not properly separated which is difficult to spot. The result is that the check is enforced only some of the time (depending on the perl hash walking order which is different each run).

use Test::More;
use Validator::LIVR qw();

my $validator = Validator::LIVR->new({
  # wrong line:
  field => ['required', {like => "^[A-Za-z]+\$", max_length => 20}],
  # correct line:
  # field => ['required', {like => "^[A-Za-z]+\$"}, {max_length => 20}],
});
my $passed_fields = $validator->validate( { field => "invalid_data" } );
ok ! $passed_fields, 'invalid data is not allowed';
done_testing;

[koorchik]

Good point! I will add more tests to the main LIVR test suite covering this issue. Thank you!