chore: run test in ci (#42)

.editorconfig

@@ -9,3 +9,6 @@ end_of_line = lf
 insert_final_newline = true
 indent_style = space
 indent_size = 4
+
+[*.yaml]
+indent_size = 2

.github/workflows/ci.yaml

@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  pull_request:
+    types: [ opened, synchronize ]
+  push:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.x, 18.x, 20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'yarn'
+
+    - name: Install dependencies
+      run: yarn
+
+    - name: Run Jest tests
+      run: yarn test