assertEquals("1.024EB", MemoryUtil.byteCountToDisplaySize(FileUtils.ONE_EB));
    }

    public void test_getUsedMemory() {
        assertTrue(MemoryUtil.getUsedMemory() >= 0);
    }

    public void test_sizeOf() throws Exception {
        // System.out.println("size: " + getObjectSize(""));
        assertEquals(24L, MemoryUtil.sizeOf(Integer.MAX_VALUE));
        assertEquals(24L, MemoryUtil.sizeOf(Long.MAX_VALUE));

        assertTrue(content.contains("テスト"));
        assertTrue(content.contains("テキスト"));
    }

    public void test_getTika_zip_bom() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/zip/test_size.zip");
        tikaExtractor.maxCompressionRatio = 1;
        tikaExtractor.maxUncompressionSize = 10000;
        try {
            tikaExtractor.getText(in, null);
            fail();