added basic unit tests

.gitea/workflows/build.yaml

@@ -0,0 +1,18 @@
+name: CI
+on:
+  push:
+    branches: [ master ]
+jobs:
+  build:
+    runs-on: woryzen
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+      - name: Run unit tests
+        run: |
+          cargo test
+      - name: Publish artifacts
+        env:
+          CARGO_REGISTRIES_GITEA_TOKEN: Bearer ${{ secrets.PUBLISHER_TOKEN }}
+        run: |
+          cargo publish