A simple Google Action to run lint Python code and run tests when commits are pushed to the remote. Article: https://medium.com/rockedscience/docker-ci-cd-pipeline-with-github-actions-6d4cd1731030

gadockercicd_01_run_tests.yml

# Article: https://medium.com/rockedscience/docker-ci-cd-pipeline-with-github-actions-6d4cd1731030
name: Run unit tests with Python

# Sets the events which will trigger the Action
# `push` = any "push" action to the GitHub "remote",
# changes to any branch will be considered
on: [push]

jobs:
  # `build` is a user-defined name for this job
  build:
    # Set the base environment to run the Action on
    runs-on: ubuntu-latest
    
    strategy:
      matrix:
        # Set the Python version(s) to run the tests with
        python-version: [3.7, 3.8]
    
    # Steps to complete the job
    steps:
    - name: Checking out code from the repository
      uses: actions/checkout@v2
    
    - name: Setting up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}
        
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install flake8
        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
    
    - name: Lint the code with flake8
      run: |
        # stop the build if there are Python syntax errors or undefined names
        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
    
    - name: Test with unittest
      run: |
        python -m unittest discover