Add rule test for bug-6799 to verify no false positive on count() comparison

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: phpstan-bot

tests/PHPStan/Rules/Comparison/NumberComparisonOperatorsConstantConditionRuleTest.php

@@ -288,6 +288,11 @@ public function testBug13874(): void
 		$this->analyse([__DIR__ . '/data/bug-13874.php'], []);
 	}
 
+	public function testBug6799(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-6799.php'], []);
+	}
+
 	public function testBug12163(): void
 	{
 		$this->analyse([__DIR__ . '/../../Analyser/nsrt/bug-12163.php'], [

tests/PHPStan/Rules/Comparison/data/bug-6799.php

@@ -0,0 +1,38 @@
+<?php declare(strict_types = 1);
+
+namespace Bug6799Rule;
+
+class HelloWorld
+{
+	/**
+	 * @param string[] $where
+	 * @param string $sqlTableName
+	 * @param mixed[] $filter
+	 * @param string $value
+	 */
+	protected function listingAddWhereFilterAtableDefault(array &$where, string $sqlTableName, array $filter, string $value): void
+	{
+		if ($value != "" && !empty($filter) && !empty($filter['sql']) && is_string($filter['sql'])) {
+			$where[] = "`" . $sqlTableName . "`.`" . (string)$filter['sql'] . "` = '" . $value . "'";
+		}
+	}
+
+	/**
+	 * @param string[] $filterValues
+	 * @param string[] $where
+	 * @param string[] $tables
+	 * @param mixed[] $filters
+	 */
+	protected function listingAddWhereFilterAtable(array $filterValues, array &$where, array &$tables, array $filters): void
+	{
+		if (!empty($filterValues) && !empty($filters)) {
+			$whereFilter = array();
+			foreach ($filterValues as $type => $value) {
+				call_user_func_array(array($this, 'listingAddWhereFilterAtableDefault'), array(&$whereFilter, 'xxxx', $filters[$type], $value));
+			}
+			if (count($whereFilter) > 0) {
+				$where[] = implode(' OR ', $whereFilter);
+			}
+		}
+	}
+}