Add tests

.github/workflows/ci.yaml

@@ -1,16 +1,16 @@
-name: test
+name: ci
 
 on:
   pull_request:
     branches: master
   push:
     branches: master
-    tags:
 
 jobs:
-  test:
+  ci:
     runs-on: ${{ matrix.os }}
     strategy:
+      fail-fast: false
       matrix:
         os:
           - ubuntu-latest

.github/workflows/test.yml

@@ -0,0 +1,33 @@
+name: test
+
+on:
+  pull_request:
+    branches: master
+  push:
+    branches: master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        # https://github.com/actions/checkout
+        name: Checkout
+        uses: actions/checkout@v1
+      -
+        name: Install
+        run: npm ci
+      -
+        name: Build
+        run: npm run build
+      -
+        name: Test
+        run: npm run test
+      -
+        name: Check for uncommitted changes
+        # Ensure no changes, but ignore node_modules dir since dev/fresh ci deps installed.
+        run: |
+          git diff --exit-code --stat -- . ':!node_modules' \
+          || (echo "##[error] found changed files after build. please 'npm run build && npm run format'" \
+                  "and check in all changes" \
+              && exit 1)