rocketmq-remoting 0.9.0

// Copyright 2023 The RocketMQ Rust Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use rocketmq_macros::RequestHeaderCodecV2;
use serde::Deserialize;
use serde::Serialize;

use crate::protocol::CheetahString;

#[derive(Clone, Debug, Serialize, Deserialize, Default, RequestHeaderCodecV2)]
#[serde(rename_all = "camelCase")]
pub struct GetMetaDataResponseHeader {
    pub group: Option<CheetahString>,
    pub controller_leader_id: Option<CheetahString>,
    pub controller_leader_address: Option<CheetahString>,
    pub is_leader: Option<bool>,
    pub peers: Option<CheetahString>,
}

#[cfg(test)]
mod tests {
    use std::collections::HashMap;

    use super::*;
    use crate::protocol::command_custom_header::CommandCustomHeader;
    use crate::protocol::command_custom_header::FromMap;

    #[test]
    fn get_meta_data_response_header_serializes_correctly() {
        let header = GetMetaDataResponseHeader {
            group: Some(CheetahString::from_static_str("test_group")),
            controller_leader_id: Some(CheetahString::from_static_str("1")),
            controller_leader_address: Some(CheetahString::from_static_str("192.168.1.1:9876")),
            is_leader: Some(true),
            peers: Some(CheetahString::from_static_str("192.168.1.1:9876,192.168.1.2:9876")),
        };
        let map = header.to_map().unwrap();
        assert_eq!(
            map.get(&CheetahString::from_static_str(GetMetaDataResponseHeader::GROUP))
                .unwrap(),
            "test_group"
        );
        assert_eq!(
            map.get(&CheetahString::from_static_str(
                GetMetaDataResponseHeader::CONTROLLER_LEADER_ID
            ))
            .unwrap(),
            "1"
        );
        assert_eq!(
            map.get(&CheetahString::from_static_str(
                GetMetaDataResponseHeader::CONTROLLER_LEADER_ADDRESS
            ))
            .unwrap(),
            "192.168.1.1:9876"
        );
        assert_eq!(
            map.get(&CheetahString::from_static_str(GetMetaDataResponseHeader::IS_LEADER))
                .unwrap(),
            "true"
        );
        assert_eq!(
            map.get(&CheetahString::from_static_str(GetMetaDataResponseHeader::PEERS))
                .unwrap(),
            "192.168.1.1:9876,192.168.1.2:9876"
        );
    }

    #[test]
    fn get_meta_data_response_header_deserializes_correctly() {
        let mut map = HashMap::new();
        map.insert(
            CheetahString::from_static_str(GetMetaDataResponseHeader::GROUP),
            CheetahString::from("test_group"),
        );
        map.insert(
            CheetahString::from_static_str(GetMetaDataResponseHeader::CONTROLLER_LEADER_ID),
            CheetahString::from("1"),
        );
        map.insert(
            CheetahString::from_static_str(GetMetaDataResponseHeader::CONTROLLER_LEADER_ADDRESS),
            CheetahString::from("192.168.1.1:9876"),
        );
        map.insert(
            CheetahString::from_static_str(GetMetaDataResponseHeader::IS_LEADER),
            CheetahString::from("true"),
        );
        map.insert(
            CheetahString::from_static_str(GetMetaDataResponseHeader::PEERS),
            CheetahString::from("192.168.1.1:9876,192.168.1.2:9876"),
        );
        let header = <GetMetaDataResponseHeader as FromMap>::from(&map).unwrap();
        assert_eq!(header.group, Some(CheetahString::from_static_str("test_group")));
        assert_eq!(header.controller_leader_id, Some(CheetahString::from_static_str("1")));
        assert_eq!(
            header.controller_leader_address,
            Some(CheetahString::from_static_str("192.168.1.1:9876"))
        );
        assert_eq!(header.is_leader, Some(true));
        assert_eq!(
            header.peers,
            Some(CheetahString::from_static_str("192.168.1.1:9876,192.168.1.2:9876"))
        );
    }

    #[test]
    fn get_meta_data_response_header_handles_missing_optional_fields() {
        let map = HashMap::new();
        let header = <GetMetaDataResponseHeader as FromMap>::from(&map).unwrap();
        assert!(header.group.is_none());
        assert!(header.controller_leader_id.is_none());
        assert!(header.controller_leader_address.is_none());
        assert!(header.is_leader.is_none());
        assert!(header.peers.is_none());
    }
}