add test

contracts/axelarnet-gateway/src/contract/execute.rs

@@ -55,7 +55,7 @@ pub enum Error {
     InvalidToken,
     #[error("invalid routing destination")]
     InvalidRoutingDestination,
-    #[error("failed converting the nexus message for the router")]
+    #[error("failed to convert the nexus message for the router")]
     InvalidNexusMessageForRouter,
 }
 

contracts/axelarnet-gateway/tests/execute.rs

@@ -394,3 +394,20 @@ fn contract_call_with_token_to_amplifier_chains_fails() {
         ExecuteError::InvalidRoutingDestination,
     );
 }
+
+#[test]
+fn route_from_nexus_to_router() {
+    let mut deps = mock_dependencies();
+
+    utils::instantiate_contract(deps.as_mut()).unwrap();
+
+    let response = assert_ok!(utils::route_from_nexus(
+        deps.as_mut(),
+        vec![
+            messages::dummy_from_nexus(&vec![1, 2, 3]),
+            messages::dummy_from_nexus(&vec![4, 5, 6]),
+        ]
+    ));
+
+    goldie::assert_json!(response.messages)
+}

contracts/axelarnet-gateway/tests/testdata/route_from_nexus_to_router.golden

@@ -0,0 +1,16 @@
+[
+  {
+    "id": 0,
+    "msg": {
+      "wasm": {
+        "execute": {
+          "contract_addr": "router",
+          "msg": "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",
+          "funds": []
+        }
+      }
+    },
+    "gas_limit": null,
+    "reply_on": "never"
+  }
+]

contracts/axelarnet-gateway/tests/utils/execute.rs

@@ -70,3 +70,15 @@ pub fn route_to_router(
         GatewayExecuteMsg::RouteMessages(msgs),
     )
 }
+
+pub fn route_from_nexus(
+    deps: DepsMut,
+    msgs: Vec<nexus::execute::Message>,
+) -> Result<Response<nexus::execute::Message>, ContractError> {
+    contract::execute(
+        deps,
+        mock_env(),
+        mock_info("nexus", &[]),
+        GatewayExecuteMsg::RouteMessagesFromNexus(msgs),
+    )
+}

contracts/axelarnet-gateway/tests/utils/messages.rs

@@ -1,3 +1,5 @@
+use axelar_core_std::nexus;
+use cw_storage_plus::Prefixer;
 use router_api::{CrossChainId, Message};
 use sha3::Digest;
 
@@ -22,3 +24,17 @@ pub fn dummy_to_router(payload: &impl AsRef<[u8]>) -> Message {
         payload_hash: sha3::Keccak256::digest(payload).into(),
     }
 }
+
+pub fn dummy_from_nexus(payload: &impl AsRef<[u8]>) -> nexus::execute::Message {
+    nexus::execute::Message {
+        source_chain: "Ethereum".parse().unwrap(),
+        source_address: "source-address".parse().unwrap(),
+        destination_chain: "destination-chain".parse().unwrap(),
+        destination_address: "destination-address".parse().unwrap(),
+        payload_hash: sha3::Keccak256::digest(payload).into(),
+        source_tx_id: "source-chain".as_bytes().to_vec().try_into().unwrap(),
+        source_tx_index: 0,
+        id: "source-chain-0".to_string(),
+        token: None,
+    }
+}