Update if condition to explicitly check what is expected and add a test to reach that condition

Author: rodrigoprimo

WordPress/Sniffs/WP/OptionAutoloadSniff.php

@@ -334,7 +334,7 @@ private function check_autoload_value( array $autoload_info, $function_name ) {
 
 		$normalized_value = strtolower( $autoload_info['clean'] );
 
-		if ( \T_NS_SEPARATOR === $this->tokens[ $param_first_token ]['code'] && $param_second_token ) {
+		if ( \T_NS_SEPARATOR === $this->tokens[ $param_first_token ]['code'] && is_int( $param_second_token ) ) {
 			$token_content_lowercase = strtolower( $this->tokens[ $param_second_token ]['content'] );
 
 			if ( isset( $this->valid_values_add_and_update[ $token_content_lowercase ] ) ) {

WordPress/Tests/WP/OptionAutoloadUnitTest.3.inc

@@ -0,0 +1,8 @@
+<?php
+
+/*
+ * Intentional parse error (just a namespace separator as the third parameter).
+ * This should be the only test in this file.
+ */
+
+update_option('my_option', 'new_value', \);

WordPress/Tests/WP/OptionAutoloadUnitTest.php

@@ -117,6 +117,11 @@ public function getWarningList( $testFile = '' ) {
 					227 => 1,
 				);
 
+			case 'OptionAutoloadUnitTest.3.inc':
+				return array(
+					8 => 1,
+				);
+
 			default:
 				return array();
 		}