add test workflow (#9)

.github/workflows/test.yml

@@ -0,0 +1,26 @@
+name: test
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+  workflow_call:
+
+concurrency:
+  group: test-${{ github.head_ref }}
+  cancel-in-progress: true
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build
+        run: cargo build --verbose
+
+      - name: Run tests
+        run: cargo test --verbose