minor #33932 [String] Added test for replaceMatches (honarkhah)

This PR was merged into the 5.0-dev branch.

Discussion
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[String] Added test for replaceMatches

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix #33905
| License       | MIT
| Doc PR        |

Added test for String:replaceMatches

Commits
-------

1cbbddd4a9 [String] Added test for replaceMatches

Author: nicolas-grekas

Tests/AbstractAsciiTestCase.php

@@ -833,6 +833,34 @@ public static function provideReplace()
         ];
     }
 
+    /**
+     * @dataProvider provideReplaceMatches
+     */
+    public function testReplaceMatches(string $expectedString, string $origin, string $fromRegexp, $to)
+    {
+        $origin = static::createFromString($origin);
+        $result = $origin->replaceMatches($fromRegexp, $to);
+
+        $this->assertEquals(static::createFromString($expectedString), $result);
+    }
+
+    public static function provideReplaceMatches()
+    {
+        return [
+            ['April,15,2003', 'April 15, 2003', '/(\w+) (\d+), (\d+)/i', '${1},$2,$3'],
+            ['5/27/1999', '1999-5-27', '/(19|20)(\d{2})-(\d{1,2})-(\d{1,2})/', '\3/\4/\1\2'],
+            ['Copyright 2000', 'Copyright 1999', '([0-9]+)', '2000'],
+            ['hello world! this is a test', 'HELLO WORLD! THIS is a test', '/\b([A-Z]+)\b/', function ($word) {
+                return strtolower($word[1]);
+            }],
+            ['COPYRIGHT 1999', 'Copyright 1999', '/[a-z]/', function ($matches) {
+                foreach ($matches as $match) {
+                    return strtoupper($match);
+                }
+            }],
+        ];
+    }
+
     /**
      * @dataProvider provideReplaceIgnoreCase
      */

Tests/AbstractUnicodeTestCase.php

@@ -439,6 +439,16 @@ public static function provideReplace(): array
         );
     }
 
+    public static function provideReplaceMatches(): array
+    {
+        return array_merge(
+            parent::provideReplaceMatches(),
+            [
+                ['This is a dj-vu situation!', 'This is a déjà-vu situation!', '/([à-ú])/', ''],
+            ]
+        );
+    }
+
     public static function provideReplaceIgnoreCase(): array
     {
         return array_merge(