assertTrue(bufferManager.getTotalAllocated() > initialAllocated, "Total allocated should increase");
        assertTrue(bufferManager.getActiveRegions() > 0, "Active regions should be positive");

        // Release regions
        bufferManager.releaseSendRegion(region1);
        bufferManager.releaseReceiveRegion(region2);
    }

    @Test

        return totalReleased.get();
    }

    /**
     * Get number of currently active regions
     *
     * @return active regions (allocated - released)
     */
    public long getActiveRegions() {
        return totalAllocated.get() - totalReleased.get();
    }

    /**
     * Get number of available send regions in pool
     *
     * @return available send regions
     */