workaround PHP sleep() mocking limitation

bootstrap-dev-sleep.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Malkusch\Lock\Tests;
+
+use phpmock\environment\SleepEnvironmentBuilder;
+
+// workaround https://github.com/php/php-src/issues/17116
+(static function () {
+    $sleepBuilder = new SleepEnvironmentBuilder();
+    $sleepBuilder->addNamespace('Malkusch\Lock\Mutex');
+    $sleepBuilder->addNamespace('Malkusch\Lock\Util');
+    $sleepBuilder->addNamespace('Malkusch\Lock\Tests\Mutex');
+    $sleepBuilder->addNamespace('Malkusch\Lock\Tests\Util');
+    $sleep = $sleepBuilder->build();
+    $sleep->enable();
+    $sleep->disable();
+})();

composer.json

@@ -79,7 +79,10 @@
     "autoload-dev": {
         "psr-4": {
             "Malkusch\\Lock\\Tests\\": "tests/"
-        }
+        },
+        "files": [
+            "bootstrap-dev-sleep.php"
+        ]
     },
     "config": {
         "allow-plugins": {