ci: add job to run batcher tests

.github/workflows/build-rust.yml → .github/workflows/build-and-test-rust.yml

@@ -1,4 +1,4 @@
-name: build-rust-projects
+name: build-and-test-rust-projects
 
 on:
   merge_group:
@@ -7,13 +7,13 @@ on:
   pull_request:
     branches: ["*"]
     paths:
-        - 'batcher/**'
-        - '.github/workflows/build-rust.yml'
+      - "batcher/**"
+      - ".github/workflows/build-rust.yml"
 
 jobs:
   build:
     runs-on: aligned-runner
-    
+
     steps:
       - uses: actions/checkout@v4
 
@@ -45,3 +45,24 @@ jobs:
         run: |
           cd batcher
           cargo build --all
+
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Cache Rust dependencies
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            batcher/target
+          key: ${{ runner.os }}-rust-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-rust-
+      - name: Run tests
+        run: |
+          cd batcher
+          cargo test --all