Map<String, Object> stats = resourceManager.getStatistics();
        assertTrue((long) stats.get("totalReleased") > 0);
    }

    @Test
    @DisplayName("Test managed resource wrapper")
    void testManagedResource() throws Exception {
        TestResource resource = new TestResource("test3");

        try (ResourceManager.ManagedResource<TestResource> managed = resourceManager.manage(resource)) {