rocketmq_protocol/protocol/header/
get_min_offset_response_header.rs

1// Copyright 2023 The RocketMQ Rust Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use rocketmq_macros::RequestHeaderCodec;
16use serde::Deserialize;
17use serde::Serialize;
18
19#[derive(Debug, Clone, Deserialize, Serialize, Default, RequestHeaderCodec)]
20#[header(
21    type_id = "rocketmq_protocol::protocol::header::get_min_offset_response_header::GetMinOffsetResponseHeader",
22    java_class = "org.apache.rocketmq.remoting.protocol.header.GetMinOffsetResponseHeader"
23)]
24pub struct GetMinOffsetResponseHeader {
25    #[header(required)]
26    pub offset: i64,
27}
28
29#[cfg(test)]
30mod tests {
31    use std::collections::HashMap;
32
33    use super::*;
34    use crate::protocol::command_custom_header::{CommandCustomHeader, FromMap};
35
36    #[test]
37    fn serde_preserves_the_offset_and_requires_a_number() {
38        let header = GetMinOffsetResponseHeader { offset: -1 };
39        let json = serde_json::to_string(&header).unwrap();
40
41        assert_eq!(json, r#"{"offset":-1}"#);
42        assert_eq!(
43            serde_json::from_str::<GetMinOffsetResponseHeader>(&json)
44                .unwrap()
45                .offset,
46            -1
47        );
48        assert!(serde_json::from_str::<GetMinOffsetResponseHeader>("{}").is_err());
49        assert!(serde_json::from_str::<GetMinOffsetResponseHeader>(r#"{"offset":"invalid"}"#).is_err());
50    }
51
52    #[test]
53    fn request_header_codec_round_trips_signed_boundaries_and_rejects_missing_or_invalid_values() {
54        for offset in [i64::MIN, 0, i64::MAX] {
55            let map = GetMinOffsetResponseHeader { offset }.to_map().unwrap();
56            let decoded = <GetMinOffsetResponseHeader as FromMap>::from(&map).unwrap();
57
58            assert_eq!(decoded.offset, offset);
59        }
60
61        assert!(<GetMinOffsetResponseHeader as FromMap>::from(&HashMap::new()).is_err());
62
63        let invalid = HashMap::from([("offset".into(), "invalid".into())]);
64        assert!(<GetMinOffsetResponseHeader as FromMap>::from(&invalid).is_err());
65    }
66}
rocketmq_protocol/protocol/header/get_min_offset_response_header.rs

rocketmq_protocol/protocol/header/
get_min_offset_response_header.rs
