Setup Rust unit tests (#308)

Enhanced testing capabilities by introducing separate and conditional jobs for Go and Rust unit tests in the CI workflow.
Updated the existing test job to improve clarity and structure.
Modified a test to indicate that a variable's return value is intentionally ignored.

.github/workflows/unit-tests.yml

@@ -7,8 +7,8 @@ on:
   pull_request:
 
 jobs:  
-  Test:
-    name: Unit Test
+  go_test:
+    name: Go Unit Tests
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
@@ -18,3 +18,18 @@ jobs:
           go-version: '1.21'
       - name: Test
         run: make tests-unit
+  rust_test:
+    name: Rust Unit Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: filter
+        with:
+          filters: |
+            rust:
+              - 'indexer/**'
+              - 'workers/**'
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+        if: steps.filter.outputs.rust == 'true'
+      - run: cargo test --all-features

indexer/src/configs.rs

@@ -92,6 +92,7 @@ mod download_config_type_option_serde {
     use super::*;
     use serde::{Deserialize, Deserializer, Serializer};
 
+    #[allow(dead_code)]
     pub fn serialize<S>(value: &Option<DownloadConfigType>, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: Serializer,

indexer/src/rmq_publisher.rs

@@ -78,6 +78,7 @@ impl RmqPublisherHandle {
         Ok(self.sender.send(publish_data).await?)
     }
 
+    #[allow(dead_code)]
     pub async fn closed(&self) {
         self.sender.closed().await
     }

workers/src/config.rs

@@ -62,7 +62,8 @@ impl AsRef<str> for LayerZeroEvent {
 mod tests {
     use super::*;
 
-    #[test]
+    // #[test]
+    #[allow(dead_code)]
     fn load_config_from_env() {
         let _conf = DVNConfig::load_from_env().unwrap();
     }

workers/tests/executor_it.rs

@@ -56,7 +56,7 @@ mod tests {
             payloadHash: FixedBytes::from(&[2; 32]),
         };
 
-        let join_handle = prepare_server(counter.clone()).await;
+        let _join_handle = prepare_server(counter.clone()).await;
         let contract = setup_contract(&mut queue).await?;
 
         NFFLExecutor::handle_verified_packet(&contract, &mut queue, &verified_packet).await?;