chore: add automated unit test execution

.github/workflows/test.yml

@@ -0,0 +1,25 @@
+name: Test
+on:
+  push:
+  pull_request:
+
+jobs:
+  release:
+    name: Unit tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Setup Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: "lts/*"
+      - uses: pnpm/action-setup@v2.2.2
+        with:
+          version: latest
+      - name: Install dependencies
+        run: pnpm i
+      - name: Run unit tests
+        run: pnpm run test