static private BufferedReader toBufferedReader(Reader reader) {
        return reader instanceof BufferedReader ? (BufferedReader) reader : new BufferedReader(reader);
    }
@Test
    public void testToBufferedReader() throws Exception {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 10; i++) {
            sb.append("testToBufferedReader").append("\n");
        }

        StringReader reader = new StringReader(sb.toString());
        Method method = IOTinyUtils.class.getDeclaredMethod("toBufferedReader", new Class[]{Reader.class});
        method.setAccessible(true);
        Object bReader = method.invoke(IOTinyUtils.class, reader);

        assertTrue(bReader instanceof BufferedReader);
    }