Added database tests along with workflows

.github/workflows/black.yaml

@@ -0,0 +1,27 @@
+name: Black
+
+on:
+  push:
+    branches: [ master, stable ]
+  pull_request:
+    branches: [ master, stable ]
+
+jobs:
+  black:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+
+    - name: Install dependencies
+      run: |
+        pip install --upgrade pip
+        pip install black
+
+    - name: Black check
+      run: |
+        black --check butterrobot

.github/workflows/pytest.yaml

@@ -0,0 +1,32 @@
+name: Pytest
+
+on:
+  push:
+    branches: [ master, stable ]
+  pull_request:
+    branches: [ master, stable ]
+
+jobs:
+  pytest:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.8]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        pip install --upgrade pip poetry
+        poetry install
+
+    - name: Test with pytest
+      run: |
+        ls
+        poetry run pytest --cov=butterrobot