CI: add tests to workflow

Author: J-MR-T

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  build:
+  build-and-test:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -21,10 +21,18 @@ jobs:
       - name: Install Rust
         run: rustup update stable --no-self-update && rustup default stable
 
-      - run: cargo build
+      - name: Build
+        run: cargo build
+
+      - name: Install test dependencies
+        run: cargo install --locked wasmtime-cli --root tools
+
+      - name: Codegen Tests
+        run: cargo run test --runner tools/bin/wasmtime --languages kotlin --artifacts target/artifacts tests/codegen
+
 
   notify-downstream:
-    needs: build
+    needs: build-and-test
     if: github.event_name == 'push'
     runs-on: ubuntu-latest
     steps: