Add full_cycle test using the new Electrum chain source

.. as we do with `BitcoindRpc`, we now test `Electrum` support by
running the `full_cycle` test in CI.

Author: tnull

tests/common/mod.rs

@@ -12,7 +12,7 @@ pub(crate) mod logging;
 
 use logging::TestLogWriter;
 
-use ldk_node::config::{Config, EsploraSyncConfig};
+use ldk_node::config::{Config, ElectrumSyncConfig, EsploraSyncConfig};
 use ldk_node::io::sqlite_store::SqliteStore;
 use ldk_node::payment::{PaymentDirection, PaymentKind, PaymentStatus};
 use ldk_node::{
@@ -255,6 +255,7 @@ type TestNode = Node;
 #[derive(Clone)]
 pub(crate) enum TestChainSource<'a> {
 	Esplora(&'a ElectrsD),
+	Electrum(&'a ElectrsD),
 	BitcoindRpc(&'a BitcoinD),
 }
 
@@ -311,6 +312,11 @@ pub(crate) fn setup_node(
 			let sync_config = EsploraSyncConfig { background_sync_config: None };
 			builder.set_chain_source_esplora(esplora_url.clone(), Some(sync_config));
 		},
+		TestChainSource::Electrum(electrsd) => {
+			let electrum_url = format!("tcp://{}", electrsd.electrum_url);
+			let sync_config = ElectrumSyncConfig { background_sync_config: None };
+			builder.set_chain_source_electrum(electrum_url.clone(), Some(sync_config));
+		},
 		TestChainSource::BitcoindRpc(bitcoind) => {
 			let rpc_host = bitcoind.params.rpc_socket.ip().to_string();
 			let rpc_port = bitcoind.params.rpc_socket.port();

tests/integration_tests_rust.rs

@@ -45,6 +45,14 @@ fn channel_full_cycle() {
 	do_channel_full_cycle(node_a, node_b, &bitcoind.client, &electrsd.client, false, true, false);
 }
 
+#[test]
+fn channel_full_cycle_electrum() {
+	let (bitcoind, electrsd) = setup_bitcoind_and_electrsd();
+	let chain_source = TestChainSource::Electrum(&electrsd);
+	let (node_a, node_b) = setup_two_nodes(&chain_source, false, true, false);
+	do_channel_full_cycle(node_a, node_b, &bitcoind.client, &electrsd.client, false, true, false);
+}
+
 #[test]
 fn channel_full_cycle_bitcoind() {
 	let (bitcoind, electrsd) = setup_bitcoind_and_electrsd();