assertEquals("123 abc", normalizeText(" 123\nabc ", 100, -1, -1, false));
        assertEquals("1234567890 1234567890", normalizeText("1234567890 1234567890", 100, -1, -1, false));
    }

    public void test_getContent_maxAlphanum() {
        assertEquals("", normalizeText((String) null, 100, 2, -1, false));
        assertEquals("", normalizeText("", 100, 2, -1, false));
        assertEquals("", normalizeText(" ", 100, 2, -1, false));