@Test(expected = RuntimeException.class)
    public void testConcatNoEscaping() {
        concatKv(
                new String[]{"f1", "f2", "f3", "f4"},
                new String[]{"a", "\"b", "c", "d"},
                '&', '=', null, '\"');
    }
Unit tests for kv splitting and concating.
inlong-sort/sort-formats/format-rowdata/format-rowdata-kv/src/test/java/org/apache/inlong/sort/formats/kv/KvUtilsTest.java