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context_mock.rs
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context_mock.rs
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use crate::context::{ChainReader, SelfChainType, SelfHeader};
use crate::context_mock::MockChainContext;
use crate::ics02_client::client_def::{AnyClientState, AnyConsensusState};
use crate::ics02_client::context::ClientReader;
use crate::ics02_client::context_mock::MockClientContext;
use crate::ics03_connection::connection::ConnectionEnd;
use crate::ics03_connection::context::{ConnectionKeeper, ConnectionReader};
use crate::ics03_connection::error::Error;
use crate::ics23_commitment::commitment::CommitmentPrefix;
use crate::ics24_host::identifier::{ClientId, ConnectionId};
use std::collections::HashMap;
use tendermint::block::Height;
#[derive(Clone, Debug, Default)]
pub struct MockConnectionContext {
chain_context: MockChainContext,
client_context: MockClientContext,
connections: HashMap<ConnectionId, ConnectionEnd>,
client_connections: HashMap<ClientId, ConnectionId>,
}
impl MockConnectionContext {
pub fn new(chain_height: u64, max_history_size: usize) -> Self {
MockConnectionContext {
chain_context: MockChainContext::new(max_history_size, Height(chain_height)),
client_context: Default::default(),
connections: Default::default(),
client_connections: Default::default(),
}
}
pub fn with_client_state(self, client_id: &ClientId, latest_client_height: u64) -> Self {
let mut client_context = self.client_context.clone();
client_context.with_client_consensus_state(client_id, Height(latest_client_height));
Self {
client_context,
..self
}
}
pub fn max_size(&self) -> usize {
self.chain_context.max_size()
}
pub fn add_connection(self, id: ConnectionId, end: ConnectionEnd) -> Self {
let mut connections = self.connections.clone();
connections.insert(id, end);
Self {
connections,
..self
}
}
}
impl ConnectionReader for MockConnectionContext {
fn fetch_connection_end(&self, cid: &ConnectionId) -> Option<&ConnectionEnd> {
self.connections.get(cid)
}
fn fetch_client_state(&self, client_id: &ClientId) -> Option<AnyClientState> {
self.client_context.client_state(client_id)
}
fn chain_current_height(&self) -> Height {
self.chain_context.latest
}
/// Returns the number of consensus state historical entries for the local chain.
fn chain_consensus_states_history_size(&self) -> usize {
self.chain_context.max_size()
}
fn chain_type(&self) -> SelfChainType {
SelfChainType::Mock
}
fn commitment_prefix(&self) -> CommitmentPrefix {
CommitmentPrefix::from(vec![])
}
fn fetch_client_consensus_state(
&self,
client_id: &ClientId,
height: Height,
) -> Option<AnyConsensusState> {
self.client_context.consensus_state(client_id, height)
}
fn fetch_self_consensus_state(&self, height: Height) -> Option<AnyConsensusState> {
let hi = self.chain_context.self_historical_info(height)?.header;
match hi {
#[cfg(test)]
SelfHeader::Mock(h) => Some(h.into()),
_ => None,
}
}
fn get_compatible_versions(&self) -> Vec<String> {
vec!["test".to_string()]
}
fn pick_version(&self, counterparty_candidate_versions: Vec<String>) -> String {
counterparty_candidate_versions
.get(0)
.unwrap_or(&String::from("none"))
.to_string()
}
}
impl ConnectionKeeper for MockConnectionContext {
fn store_connection(
&mut self,
connection_id: &ConnectionId,
connection_end: &ConnectionEnd,
) -> Result<(), Error> {
self.connections
.insert(connection_id.clone(), connection_end.clone());
Ok(())
}
fn store_connection_to_client(
&mut self,
connection_id: &ConnectionId,
client_id: &ClientId,
) -> Result<(), Error> {
self.client_connections
.insert(client_id.clone(), connection_id.clone());
Ok(())
}
}