These may eventually end up in pyln-client, as they allow talking to the GRPC interface exposed by cln-grpc, however for now they are used for testing only. Once we have sufficient API and test coverage we can move them and leave imports in their place.
pyln-testing: A library to write tests against Core Lightning
This library implements a number of utilities that help building tests for Core Lightning nodes. In particular it provides a number of pytest fixtures that allow the management of a test network of a given topology and then execute a test scenarion.
pyln-testing is used by Core Lightning for its internal tests, and by the
community plugin directory to exercise the plugins.
Installation
pyln-testing is available on pip:
pip install pyln-testing
Alternatively you can also install the development version to get access to currently unreleased features by checking out the Core Lightning source code and installing into your python3 environment:
git clone https://github.com/ElementsProject/lightning.git
cd lightning/contrib/pyln-testing
poetry install
This will add links to the library into your environment so changing the checked out source code will also result in the environment picking up these changes. Notice however that unreleased versions may change API without warning, so test thoroughly with the released version.