lru.put("aaa", "111");
        lru.put("bbb", "222");
        lru.put("ccc", "333");
        assertThat(lru.get("aaa"), is("111"));
        Iterator<String> i = lru.keySet().iterator();
        assertThat(i.next(), is("bbb"));
        assertThat(i.next(), is("ccc"));
        assertThat(i.next(), is("aaa"));
        lru.put("ddd", "444");
        assertThat(lru.size(), is(3));

        assertEquals("1", "xml", ResourceUtil.getExtension("aaa/bbb.xml"));
        assertEquals("2", null, ResourceUtil.getExtension("aaa"));
    }

    /**
     * @throws Exception
     */
    public void testRemoteExtension() throws Exception {
        assertEquals("1", "aaa/bbb", ResourceUtil.removeExtension("aaa/bbb.xml"));
        assertEquals("2", "aaa/bbb", ResourceUtil.removeExtension("aaa/bbb"));
    }

    /**

        assertTrue(values[3].startsWith("aaa:"));

        localLogMsg.remove();
        crawlerStatsHelper.done(key);
        assertNull(localLogMsg.get());
    }

    @Test
    public void test_beginDoneWithRecord2() {
        String key = "test";
        crawlerStatsHelper.begin(key);
        crawlerStatsHelper.record(key, "aaa");
        crawlerStatsHelper.record(key, "bbb");

        assertEquals("action:ACCESS\tuser:-\tpath:/\texecute:aaa", localLogMsg.get());

        activityHelper.access(createUser("testuser", new String[0]), "/aaa", "bbb");
        assertEquals("action:ACCESS\tuser:testuser\tpath:/aaa\texecute:bbb", localLogMsg.get());

        activityHelper.access(createUser("testuser", new String[] { "111", "222" }), "/aaa/bbb", "ccc");

     * @throws Exception
     */
    @Test
    public void test() throws Exception {
        final StringReader reader = new StringReader("aaa\nbbb\nccc\n");
        final LineIterator it = new LineIterator(reader);
        assertThat(it.hasNext(), is(true));
        assertThat(it.next(), is("aaa"));
        assertThat(it.hasNext(), is(true));
        assertThat(it.next(), is("bbb"));
        assertThat(it.hasNext(), is(true));

        assertEquals("L1:aaa", documentHelper.appendLineNumber("L", "aaa"));
        assertEquals("L1:aaa", documentHelper.appendLineNumber("L", "aaa\n"));
        assertEquals("L1:aaa\nL2:bbb", documentHelper.appendLineNumber("L", "aaa\nbbb"));
        assertEquals("L1:aaa\nL2:bbb\nL3:ccc", documentHelper.appendLineNumber("L", "aaa\nbbb\nccc"));
    }

    @Test
    public void test_init() {

        list.add("aaa");
        list.add("bbb");
        list.add("ccc");

        final IndexedIterator<String> it = new IndexedIterator<String>(list.iterator());

        assertThat(it.hasNext(), is(true));

        final Indexed<String> indexed1 = it.next();
        assertThat(indexed1.getIndex(), is(0));
        assertThat(indexed1.getElement(), is("aaa"));

         */
        public static final String s = null;

        /**
         * @return 何か
         */
        public static String hoge() {
            return "aaa";
        }

        /**
         *
         */
        public String aaa;

        /**
         *
         */
        public transient String bbb;
    }

        Map<String, Object> doc = new HashMap<>();
        assertEquals("aaa", languageHelper.createScript(doc, "aaa").getIdOrCode());

        doc.put("lang", "ja");
        assertEquals("aaa;ctx._source.title_ja=ctx._source.title;ctx._source.content_ja=ctx._source.content",
                languageHelper.createScript(doc, "aaa").getIdOrCode());
    }

    @Test
    public void test_getReindexScriptSource() {

     * </p>
     *
     * @param rootDir the root directory (must not be {@literal null})