fix expectation + waitForTermination

Author: medilies

src/Dompurify/DompurifyService.php

@@ -113,5 +113,20 @@ public function throwIfFailedOnTerm(): void
         throw new ProcessFailedException($this->serviceProcess);
     }
 
+    public function waitForTermination(int $timeout): void
+    {
+        $elapsed = 0;
+        $sleepInterval = 100; // Sleep for 100 milliseconds
+
+        while ($this->serviceProcess->isRunning() && $elapsed < $timeout) {
+            usleep($sleepInterval * 1000);
+            $elapsed += $sleepInterval;
+        }
+
+        if ($this->serviceProcess->isRunning()) {
+            throw new XsslessException('Process did not terminate within the given timeout');
+        }
+    }
+
     // ========================================================================
 }

tests/Dompurify/DompurifyServiceTest.php

@@ -70,7 +70,6 @@
     ));
 
     expect(fn () => $service->start())->toThrow(ProcessFailedException::class);
-    expect($service->serviceProcess->getTermSignal())->toBe(127);
-    // TODO: fix https://github.com/medilies/xssless/actions/runs/10283025153/job/28455979969
-    // TODO: wait for signal
+    $service->waitForTermination(1000);
+    expect($service->serviceProcess->getExitCode())->toBe(127);
 });