Create pull_request.yml

Signed-off-by: feng-tao <fengtao04@gmail.com>

.github/workflows/pull_request.yml

@@ -0,0 +1,34 @@
+# This workflow will install Python dependencies, run tests and lint with a single version of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+on: pull_request
+jobs:
+  pre-commit:
+    runs-on: ubuntu-18.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Setup python 3.6
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.6
+      - name: Install pre-commit
+        run: pip install pre-commit
+      - name: Run pre-commit
+        run: pre-commit run --all-files
+  test-unit:
+    runs-on: ubuntu-18.04
+    strategy:
+        matrix:
+          python-version: ['3.6.x', '3.7.x']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Setup python ${{ matrix.python-version }}
+        uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: pip3 install -r requirements.txt && pip3 install codecov
+      - name: Run python unit tests
+        run: make test