How can I integrate Python coverage with CI tools?

How can I integrate Python coverage with CI tools?

You can integrate Python coverage with CI tools by using tools like Travis CI, GitHub Actions, or Jenkins. First, ensure you have coverage.py installed in your project. Then, configure your CI tool to run your tests and generate a coverage report.

What specific steps do I need to take for GitHub Actions?

For GitHub Actions, create a workflow file in your .github/workflows directory. Use the python action to set up your environment, install dependencies, run your tests with coverage, and then upload the coverage report using a tool like codecov.

Can you provide an example of a workflow file?

Sure! Here's a simple example:

name: Python package

on: [push]

jobs:
  build:
    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 -r requirements.txt
        pip install coverage
    - name: Run tests with coverage
      run: |
        coverage run -m unittest discover
        coverage report
        coverage xml
    - name: Upload coverage to Codecov
      run: bash <(curl -s https://codecov.io/bash)

What if I want to use Travis CI instead?

For Travis CI, you would create a .travis.yml file in your repository. You can specify the Python version, install dependencies, run tests with coverage, and then upload the report. Here's a basic example:

language: python
python:
  - "3.8"

install:
  - pip install -r requirements.txt
  - pip install coverage

script:
  - coverage run -m unittest discover

after_success:
  - coveralls