Use GitHub Actions

.github/workflows/test.yml

@@ -0,0 +1,39 @@
+name: test
+
+on:
+  push:
+    branches:
+      - "**"
+    tags-ignore:
+      - v*
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - run: echo "::set-output name=version::$(cat .nvmrc)"
+        id: nvmrc
+
+      - name: Setup node
+        uses: actions/setup-node@v1
+        with:
+          node-version: "${{ steps.nvmrc.outputs.version }}"
+
+      - run: echo "::set-output name=dir::$(yarn cache dir)"
+        id: yarn-cache
+
+      - name: Restore dependency cache
+        uses: actions/cache@v2
+        with:
+          path: "${{ steps.yarn-cache.outputs.dir }}"
+          key: ${{ runner.os }}-yarn-cache-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-cache-
+
+      - name: Install dependencies
+        run: yarn --frozen-lockfile
+
+      - name: Test
+        run: yarn test