Merged with master

Author: hiranya911

.github/workflows/ci.yml

@@ -0,0 +1,47 @@
+name: Continuous Integration
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python: [3.5, 3.6, 3.7, pypy3]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+    - name: Test with pytest
+      run: pytest
+    - name: Set up Node.js 10
+      uses: actions/setup-node@v1
+      with:
+        node-version: 10.x
+    - name: Run integration tests against emulator
+      run: |
+        npm install -g firebase-tools
+        firebase emulators:exec --only database --project fake-project-id 'pytest integration/test_db.py'
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python 3.7
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.7
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+    - name: Lint with pylint
+      run: ./lint.sh all