@Test
    public void test_destroyProcess_nonExistent() {
        int result = processHelper.destroyProcess("nonexistent");
        assertEquals(-1, result);
    }

    @Test
    public void test_setProcessDestroyTimeout() {
        processHelper.setProcessDestroyTimeout(20);
        // We can't directly verify the timeout value, but we can ensure the method doesn't throw
        assertTrue(true);
    }

    @Test