assertEquals("12 ab", normalizeText(" 123\nabc ", 100, 2, -1, false));
        assertEquals("12", normalizeText(" 123abc ", 100, 2, -1, false));
    }

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

        assertEquals("12 ab", documentHelper.getContent(null, responseData, " 123\nabc ", dataMap));
        assertEquals("12", documentHelper.getContent(null, responseData, " 123abc ", dataMap));
    }

    public void test_getContent_maxSymbol() {
        DocumentHelper documentHelper = new DocumentHelper() {
            protected int getMaxSymbolTermSize() {
                return 2;
            }
        };