Add tests

.github/workflows/ci.yml

@@ -0,0 +1,49 @@
+env: {}
+
+# FILE GENERATED WITH: npx ghat fregante/ghatemplates/node
+# SOURCE: https://github.com/fregante/ghatemplates
+# OPTIONS: {"exclude":["Test"]}
+
+name: CI
+on:
+  - pull_request
+  - push
+jobs:
+  Lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: .nvmrc
+          cache: npm
+      - name: install
+        run: npm ci || npm install
+      - name: XO
+        run: npx xo
+  Test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: .nvmrc
+          cache: npm
+      - name: install
+        run: npm ci || npm install
+      - name: build
+        run: npm run build --if-present
+      - name: AVA
+        run: npx ava
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: .nvmrc
+          cache: npm
+      - name: install
+        run: npm ci || npm install
+      - name: build
+        run: npm run build