assertTrue((long) stats.get("totalAllocated") >= 2);
        assertTrue((long) stats.get("totalReleased") >= 1);
        assertNotNull(stats.get("activeResources"));
        assertNotNull(stats.get("closedResources"));
    }

    @Test
    @DisplayName("Test get active resources")
    void testGetActiveResources() {
        TestResource resource = new TestResource("active1");