assertTrue(tempFile.exists());
        assertTrue(tempFile.canRead());
        assertTrue(tempFile.canWrite());
        tempFile.delete();
    }

    @Test
    public void test_calibrateCpuLoad_withTimeout() {
        systemHelper.setSystemCpuCheckInterval(100L);
        final boolean result = systemHelper.calibrateCpuLoad(1L);
        assertTrue(result || !result); // Can be either depending on CPU load
    }