cf7-spam-to-telegram/tests/DomainFormatterTest.php

<?php
declare(strict_types=1);

namespace Cf7stg\Tests;

use Cf7stg\DomainFormatter;
use PHPUnit\Framework\TestCase;

final class DomainFormatterTest extends TestCase
{
    public function test_decodes_punycode_to_cyrillic(): void
    {
        self::assertSame(
            'вашаняня.рф',
            DomainFormatter::humanize('xn--80aae0ca7d8bb.xn--p1ai')
        );
    }

    public function test_latin_domain_unchanged(): void
    {
        self::assertSame(
            'washanyanya.ru',
            DomainFormatter::humanize('washanyanya.ru')
        );
    }

    public function test_strips_scheme_and_path(): void
    {
        self::assertSame(
            'washanyanya.ru',
            DomainFormatter::humanize('https://washanyanya.ru/contact/?a=1')
        );
    }

    public function test_strips_leading_www(): void
    {
        self::assertSame(
            'washanyanya.ru',
            DomainFormatter::humanize('www.washanyanya.ru')
        );
    }

    public function test_invalid_input_returns_empty_string(): void
    {
        self::assertSame('', DomainFormatter::humanize(''));
    }

    public function test_broken_idn_returns_original(): void
    {
        // Looks like IDN but is garbage; idn_to_utf8 returns false → we fall back
        self::assertSame('xn--', DomainFormatter::humanize('xn--'));
    }
}