<?php
declare(strict_types=1);
namespace Tests\Unit\Lib\Sanitizer;
use Butschster\ContextGenerator\Modifier\Sanitizer\Rule\RegexReplacementRule;
use PHPUnit\Framework\Attributes\Test;
use Tests\TestCase;
class RegexReplacementRuleTest extends TestCase
{
#[Test]
public function it_should_return_correct_name(): void
{
$rule = new RegexReplacementRule('test-rule', []);
$this->assertEquals('test-rule', $rule->getName());
}
#[Test]
public function it_should_not_modify_content_with_empty_patterns(): void
{
$rule = new RegexReplacementRule('empty-patterns', []);
$content = "This content should remain unchanged";
$this->assertEquals($content, $rule->apply($content));
}
#[Test]
public function it_should_apply_single_regex_pattern(): void
{
$rule = new RegexReplacementRule(
name: 'single-pattern',
patterns: ['/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b/' => '[EMAIL_REMOVED]'],
);
$content = "Contact us at test@example.com for more information";
$expected = "Contact us at [EMAIL_REMOVED] for more information";
$this->assertEquals($expected, $rule->apply($content));
}
#[Test]
public function it_should_apply_multiple_regex_patterns(): void
{
$rule = new RegexReplacementRule(
name: 'multiple-patterns',
patterns: [
'/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b/' => '[EMAIL_REMOVED]',
'/\b(?:\d{1,3}\.){3}\d{1,3}\b/' => '[IP_ADDRESS_REMOVED]',
],
);
$content = "Contact us at test@example.com or visit our server at 192.168.1.1";
$expected = "Contact us at [EMAIL_REMOVED] or visit our server at [IP_ADDRESS_REMOVED]";
$this->assertEquals($expected, $rule->apply($content));
}
#[Test]
public function it_should_handle_capture_groups_correctly(): void
{
$rule = new RegexReplacementRule(
name: 'capture-groups',
patterns: [
'/password\s*=\s*["\'](.+?)["\']/' => 'password="[REDACTED]"',
],
);
$content = "config = { password = \"supersecret123\" }";
$expected = "config = { password=\"[REDACTED]\" }";
$this->assertEquals($expected, $rule->apply($content));
}
#[Test]
public function it_should_work_with_multiline_content(): void
{
$rule = new RegexReplacementRule(
name: 'multiline',
patterns: [
'/\/\*.*?\*\//s' => '[COMMENT_REMOVED]',
],
);
$content = "function test() {\n /* This is a\n multiline comment */\n return true;\n}";
$expected = "function test() {\n [COMMENT_REMOVED]\n return true;\n}";
$this->assertEquals($expected, $rule->apply($content));
}
#[Test]
public function it_should_handle_complex_regex_patterns(): void
{
$rule = new RegexReplacementRule(
name: 'complex-patterns',
patterns: [
'/\b\d{4}[-\s]?\d{4}[-\s]?\d{4}[-\s]?\d{4}\b/' => '[CREDIT_CARD_REMOVED]',
'/\b(?:\+\d{1,3}[-\s]?)?\(?\d{3}\)?[-\s]?\d{3}[-\s]?\d{4}\b/' => '[PHONE_NUMBER_REMOVED]',
],
);
$content = "Card: 1234 5678 9012 3456, Phone: (123) 456-7890";
$expected = "Card: [CREDIT_CARD_REMOVED], Phone: ([PHONE_NUMBER_REMOVED]";
$this->assertEquals($expected, $rule->apply($content));
}
#[Test]
public function it_should_return_unchanged_content_with_no_matches(): void
{
$rule = new RegexReplacementRule(
name: 'no-matches',
patterns: [
'/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}\b/' => '[EMAIL_REMOVED]',
],
);
$content = "This content has no email addresses";
$this->assertEquals($content, $rule->apply($content));
}
#[Test]
public function it_should_handle_overlapping_patterns_correctly(): void
{
$rule = new RegexReplacementRule(
name: 'overlapping-patterns',
patterns: [
'/secret\d+key/' => '[SECRET_KEY_REMOVED]',
'/secret\d+code/' => '[SECRET_CODE_REMOVED]',
],
);
$content = "The code is secret123key and secret456code";
$expected = "The code is [SECRET_KEY_REMOVED] and [SECRET_CODE_REMOVED]";
$this->assertEquals($expected, $rule->apply($content));
}
}
