add test for sending asset witness functionality

Author: Arshia-r-m

src/test/mod.rs

@@ -1723,6 +1723,7 @@ mod openchannel_optional_addr;
 mod payment;
 mod refuse_high_fees;
 mod restart;
+mod send_asset_witness;
 mod send_receive;
 mod swap_assets_liquidity_both_ways;
 mod swap_reverse_same_channel;

src/test/send_asset_witness.rs

@@ -0,0 +1,42 @@
+use super::*;
+
+const TEST_DIR_BASE: &str = "tmp/send_asset_witness/";
+
+#[serial_test::serial]
+#[tokio::test(flavor = "multi_thread", worker_threads = 1)]
+#[traced_test]
+async fn test_send_asset_witness() {
+    initialize();
+
+    let test_dir_node1 = format!("{TEST_DIR_BASE}node1");
+    let test_dir_node2 = format!("{TEST_DIR_BASE}node2");
+
+    let (node1_addr, _) = start_node(&test_dir_node1, NODE1_PEER_PORT, false).await;
+    let (node2_addr, _) = start_node(&test_dir_node2, NODE2_PEER_PORT, false).await;
+
+    fund_and_create_utxos(node1_addr, None).await;
+    fund_and_create_utxos(node2_addr, None).await;
+
+    let asset_id = issue_asset_nia(node1_addr).await.asset_id;
+
+    let witness_recipient_id = rgb_invoice(node2_addr, Some(asset_id.clone()), true)
+        .await
+        .recipient_id;
+
+    send_asset(
+        node1_addr,
+        &asset_id,
+        Assignment::Fungible(100),
+        witness_recipient_id,
+    )
+    .await;
+
+    mine(false);
+
+    refresh_transfers(node2_addr).await;
+    refresh_transfers(node2_addr).await;
+    refresh_transfers(node1_addr).await;
+
+    assert_eq!(asset_balance_spendable(node1_addr, &asset_id).await, 900);
+    assert_eq!(asset_balance_spendable(node2_addr, &asset_id).await, 100);
+}