random: Add additional test for Randomizer::getFloat() (#12436)

Author: TimWolla

ext/random/tests/02_engine/all_serialize_user.phpt

@@ -4,22 +4,13 @@ Random: Engine: Serialization of user engines must preserve the sequence
 <?php
 
 use Random\Engine;
+use Random\Engine\Test\TestCountingEngine32;
 use Random\Engine\Test\TestShaEngine;
 
 require __DIR__ . "/../engines.inc";
 
-final class CountingEngine32 implements Engine
-{
-    private int $count = 0;
-
-    public function generate(): string
-    {
-        return pack('V', ++$this->count);
-    }
-}
-
 $engines = [];
-$engines[] = new CountingEngine32();
+$engines[] = new TestCountingEngine32();
 $engines[] = new TestShaEngine();
 
 foreach ($engines as $engine) {
@@ -42,6 +33,6 @@ die('success');
 
 ?>
 --EXPECT--
-CountingEngine32
+Random\Engine\Test\TestCountingEngine32
 Random\Engine\Test\TestShaEngine
 success