ENGCOM-8303: Fix exception which is thrown on search results page #30318

 - Merge Pull Request #30318 from wojtekn/magento2:fix_search_results_page_exception
 - Merged commits:
   1. ce1263d
   2. ccec05a
   3. 970d179
   4. 38c4a3e
   5. 88f6101

Author: magento-engcom-team

app/code/Magento/Search/Model/SynonymAnalyzer.php

@@ -42,6 +42,7 @@ public function __construct(SynonymReader $synReader)
      *   3 => [ 0 => "british", 1 => "english" ],
      *   4 => [ 0 => "queen", 1 => "monarch" ]
      * ]
+     *
      * @param string $phrase
      * @return array
      * @throws \Magento\Framework\Exception\LocalizedException
@@ -136,6 +137,9 @@ private function getSearchPattern(array $words): string
     {
         $patterns = [];
         for ($lastItem = count($words); $lastItem > 0; $lastItem--) {
+            $words = array_map(function ($word) {
+                return preg_quote($word, '/');
+            }, $words);
             $phrase = implode("\s+", \array_slice($words, 0, $lastItem));
             $patterns[] = '^' . $phrase . ',';
             $patterns[] = ',' . $phrase . ',';

app/code/Magento/Search/Test/Unit/Model/SynonymAnalyzerTest.php

@@ -49,9 +49,9 @@ protected function setUp(): void
      */
     public function testGetSynonymsForPhrase()
     {
-        $phrase = 'Elizabeth is the british queen';
+        $phrase = 'Elizabeth/Angela is the british queen';
         $expected = [
-            0 => [ 0 => "Elizabeth" ],
+            0 => [ 0 => "Elizabeth/Angela" ],
             1 => [ 0 => "is" ],
             2 => [ 0 => "the" ],
             3 => [ 0 => "british", 1 => "english" ],

dev/tests/integration/testsuite/Magento/Search/Model/SynonymAnalyzerTest.php

@@ -78,6 +78,10 @@ public static function loadGetSynonymsForPhraseDataProvider()
                 'phrase' => 'schlicht',
                 'expectedResult' => [['schlicht', 'natürlich']]
             ],
+            'withSlashInSearchPhrase' => [
+                'phrase' => 'orange hill/peak',
+                'expectedResult' => [['orange', 'magento'], ['hill/peak']]
+            ],
         ];
     }