pytest-recording is a neat pytest plugin that makes it easy to use the VCR library, which helps write tests against HTTP resources by automatically capturing responses and baking them into a YAML file to be replayed during the tests.
It even works with boto3!
To use it, first install it with
pip install pytest-recording and then add the
@pytest.mark.vcr decorator to a test that makes HTTP calls:
@pytest.mark.vcr def test_create(): runner = CliRunner() with runner.isolated_filesystem(): result = runner.invoke(cli, ["create", "pytest-bucket-simonw-1", "-c"]) assert result.exit_code == 0
The first time you run the tests, use the
pytest -k test_create --record-mode=once
This defaults to creating a YAML file in
Subsequent runs of
pytest -k test_create will reuse those recorded HTTP requests and will not make any network requests - I confirmed this by turning off my laptop's WiFi.
Created 2021-11-02T17:51:51-07:00 · Edit