ci: add automated testing and coverage upload

.github/workflows/main.yml

@@ -0,0 +1,43 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+
+  workflow_dispatch:
+
+jobs:
+  test-and-coverage:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: use node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: "10.x"
+
+      - name: cache node.js modules
+        uses: actions/cache@v2
+        with:
+          path: ~/.npm
+          key: ${{ runner.OS }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.OS }}-node-
+            ${{ runner.OS }}-
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: run tests
+        run: npm test
+        env:
+          SOUNDCLOUD_CLIENT_ID_V1: ${{ secrets.SOUNDCLOUD_CLIENT_ID_V1 }}
+          SOUNDCLOUD_CLIENT_ID_V2: ${{ secrets.SOUNDCLOUD_CLIENT_ID_V2 }}
+          SOUNDCLOUD_OAUTH_TOKEN: ${{ secrets.SOUNDCLOUD_OAUTH_TOKEN }}
+
+      - name: codecov
+        uses: codecov/codecov-action@v1
+        with:
+          verbose: true