actions: add test job

Author: cujomalainey

.github/workflows/main.yml

@@ -55,3 +55,36 @@ jobs:
         run: pio ci --board=teensy31 --lib="."
         env:
           PLATFORMIO_CI_SRC: ${{ matrix.example }}
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      - name: Cache pip
+        uses: actions/cache@v2
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: ${{ runner.os }}-pip-
+
+      - name: Cache PlatformIO
+        uses: actions/cache@v2
+        with:
+          path: ~/.platformio
+          key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+
+      - name: Install PlatformIO
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade platformio
+
+      - name: Install library dependencies
+        run: pio lib -g install ANT
+
+      - name: Run PlatformIO
+        run: pio test -e native