chain.add((text, field, langs) -> text.replace("A", "X"));

        String result = chain.normalize("abc", "field");

        assertEquals("XBC", result);
    }

    @Test
    public void test_emptyChain() throws Exception {
        NormalizerChain chain = new NormalizerChain();

        String result = chain.normalize("test", "field");

        assertEquals("test", result);
    }

    @Test