public int[] decodeInt4Array(final byte[] parameterBytes, final boolean isBinary) {
        ShardingSpherePreconditions.checkState(!isBinary, () -> new UnsupportedSQLOperationException("binary mode"));
        String parameterValue = new String(parameterBytes, StandardCharsets.UTF_8);
        Collection<String> parameterElements = decodeText(parameterValue);
        int[] result = new int[parameterElements.size()];
        int index = 0;
        for (String each : parameterElements) {
            result[index++] = Integer.parseInt(each);
        }
        return result;
    }
@Test
    void assertParseInt4ArrayNormalTextMode() {
        int[] actual = DECODER.decodeInt4Array(INT_ARRAY_STR.getBytes(), false);
        assertThat(actual.length, is(2));
        assertThat(actual[0], is(11));
        assertThat(actual[1], is(12));
    }