ci: add new test action

.github/workflows/test.yml

@@ -0,0 +1,41 @@
+name: "test"
+
+on:
+    push:
+        branches:
+            - main
+    pull_request:
+
+jobs:
+    test:
+        runs-on: ubuntu-latest
+
+        strategy:
+            matrix:
+                node-version: [18.x]
+
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+              with:
+                  # Make sure the actual branch is checked out when running on pull requests
+                  ref: ${{ github.head_ref }}
+                  repository: ${{github.event.pull_request.head.repo.full_name || github.repository }}
+
+            - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v3
+              with:
+                  node-version: ${{ matrix.node-version }}
+
+            - name: Install dependencies
+              run: yarn install --immutable
+
+            - name: Test
+              run: yarn run test
+
+            - name: Upload coverage to Codecov
+              uses: codecov/codecov-action@v3
+              with:
+                  directory: ./coverage/
+                  fail_ci_if_error: true
+                  verbose: true