[koorchik]

Summary

• Updates tests/test_suite to the current LIVR test suite. As before, negative/22-not_empty_list and negative/27-any_object stay adjusted, as PHP decodes {} and [] to the same array.
• Fixes the bugs that the new cases find, and a few more found with the tests of the JavaScript implementation that apply to PHP.

Fixes

Found with the test suite:

• or skipped empty values, so required and not_empty in its rule sets never worked.
• or took a list in its first argument as the list of rule sets, so { or: [['email', 'to_lc'], 'positive_integer'] }, the example from the LIVR docs, threw a TypeError.
• list_of_different_objects and variable_object threw a TypeError on PHP 8 (a warning on PHP 7) when the selector value is an array.
• list_of_different_objects dropped items that are not objects from the output instead of returning an error, and turned values that are not lists into empty lists.
• equal_to_field compared values with ==, so "10" was equal to "1e1" and "0123" to "123", for example in a password confirmation. It also warned when the other field is missing.

Found with the tests of the JavaScript implementation:

• Auto trim did not trim the values of lists.
• registerDefaultRules() did not replace registered rules, though the README shows it for max_number.
• An empty list of rules ('field' => [] or list_of: []) threw Rule [] not registered.

Behavior changes

• or takes each argument as a set of rules, like the JavaScript and Perl implementations. Before, when the first argument was a list, PHP took it as the list of rule sets: { or: [['email', 'to_lc'], 'positive_integer'] } threw a TypeError, and { or: [['positive_integer', { max_number: 10 }]] } meant "positive_integer or max_number" instead of both. { or: ['email', 'positive_integer'] } works as before.
• equal_to_field compares values as strings, so numeric strings in different notations are not equal anymore.
• registerDefaultRules() replaces rules with the same names.

Testing

• PHPUnit on PHP 7.2 and 8.5: 76 tests pass. New tests are in tests/05-rules_edge_cases.php and tests/03-auto_trim.php.
• phpcs passes.
• The LIVR conformance harness with the upstream test suite: 68 of 70 cases pass, 64 before. The two failures are the {} and [] cases above.
• No warnings or deprecations while running the test suite on PHP 7.2 and 8.5.

Emails are still checked with filter_var(), so quoted local parts like "a@b"@example.com are accepted, unlike in the JavaScript implementation. The version is not bumped.