ibc-relayer-cli 1.13.2

Hermes is an IBC Relayer written in Rust 
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use abscissa_core::clap::Parser;
use abscissa_core::{Command, Runnable};

use ibc_relayer::chain::handle::ChainHandle;
use ibc_relayer::chain::requests::QueryChannelClientStateRequest;
use ibc_relayer_types::core::ics24_host::identifier::{ChainId, ChannelId, PortId};

use crate::application::app_config;
use crate::cli_utils::spawn_chain_runtime;
use crate::conclude::{exit_with_unrecoverable_error, Output};

/// The data structure that represents the arguments when invoking the `query channel client` CLI command.
///
/// `query channel client --chain <chain_id> --port <port_id> --channel <channel_id>`
///
/// If successful the channel's client state is displayed.
#[derive(Clone, Command, Debug, Parser, PartialEq, Eq)]
pub struct QueryChannelClientCmd {
    #[clap(
        long = "chain",
        required = true,
        value_name = "CHAIN_ID",
        help_heading = "REQUIRED",
        help = "Identifier of the chain to query"
    )]
    chain_id: ChainId,

    #[clap(
        long = "port",
        required = true,
        value_name = "PORT_ID",
        help_heading = "REQUIRED",
        help = "Identifier of the port to query"
    )]
    port_id: PortId,

    #[clap(
        long = "channel",
        visible_alias = "chan",
        required = true,
        value_name = "CHANNEL_ID",
        help_heading = "REQUIRED",
        help = "Identifier of the channel to query"
    )]
    channel_id: ChannelId,
}

impl Runnable for QueryChannelClientCmd {
    fn run(&self) {
        let config = app_config();

        let chain = spawn_chain_runtime(&config, &self.chain_id)
            .unwrap_or_else(exit_with_unrecoverable_error);

        match chain.query_channel_client_state(QueryChannelClientStateRequest {
            port_id: self.port_id.clone(),
            channel_id: self.channel_id.clone(),
        }) {
            Ok(cs) => Output::success(cs).exit(),
            Err(e) => Output::error(e).exit(),
        }
    }
}

#[cfg(test)]
mod tests {
    use super::QueryChannelClientCmd;

    use std::str::FromStr;

    use abscissa_core::clap::Parser;
    use ibc_relayer_types::core::ics24_host::identifier::{ChainId, ChannelId, PortId};

    #[test]
    fn test_query_channel_client() {
        assert_eq!(
            QueryChannelClientCmd {
                chain_id: ChainId::from_string("chain_id"),
                port_id: PortId::from_str("port_id").unwrap(),
                channel_id: ChannelId::from_str("channel-07").unwrap()
            },
            QueryChannelClientCmd::parse_from([
                "test",
                "--chain",
                "chain_id",
                "--port",
                "port_id",
                "--channel",
                "channel-07"
            ])
        )
    }

    #[test]
    fn test_query_channel_client_chan_alias() {
        assert_eq!(
            QueryChannelClientCmd {
                chain_id: ChainId::from_string("chain_id"),
                port_id: PortId::from_str("port_id").unwrap(),
                channel_id: ChannelId::from_str("channel-07").unwrap()
            },
            QueryChannelClientCmd::parse_from([
                "test",
                "--chain",
                "chain_id",
                "--port",
                "port_id",
                "--chan",
                "channel-07"
            ])
        )
    }

    #[test]
    fn test_query_channel_client_no_chan() {
        assert!(QueryChannelClientCmd::try_parse_from([
            "test", "--chain", "chain_id", "--port", "port_id"
        ])
        .is_err())
    }

    #[test]
    fn test_query_channel_client_no_port() {
        assert!(QueryChannelClientCmd::try_parse_from([
            "test",
            "--chain",
            "chain_id",
            "--channel",
            "channel-07"
        ])
        .is_err())
    }

    #[test]
    fn test_query_channel_client_no_chain() {
        assert!(QueryChannelClientCmd::try_parse_from([
            "test",
            "--port",
            "port_id",
            "--channel",
            "channel-07"
        ])
        .is_err())
    }
}