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Description:

volttrontesting 0.4.1rc6

volttron-testing

The volttron-testing library contains classes and utilities for interacting with a VOLTTRON instance.
Prerequisites

Python >= 3.10

Installation
Create a virtual environment
python -m venv env

Activate the environment
source env/bin/activate

Install volttron-testing
# Installs volttron and volttron-testing
pip install volttron-testing

Developing with TestServer
The following code snippet shows how to utilize the TestServer's internal pubsub to be able to test
with it outside of the volttron platform.
def test_send_alert():
""" Test that an agent can send an alert through the pubsub message bus."""

# Create an agent to run the test with
agent = Agent(identity='test-health')

# Create the server and connect the agent with the server
ts = TestServer()
ts.connect_agent(agent=agent)

# The health.send_alert should send a pubsub message through the message bus
agent.vip.health.send_alert("my_alert", Status.build(STATUS_BAD, "no context"))

# We know that there should only be a single message sent through the bus and
# the specifications of the message to test against.
messages = ts.get_published_messages()
assert len(messages) == 1
headers = messages[0].headers
message = json.loads(messages[0].message)
assert headers['alert_key'] == 'my_alert'
assert message['context'] == 'no context'
assert message['status'] == 'BAD'

Reference the volttrontesting package from within your environment in order to build tests against the TestServer.
Development
Please see the following for contributing guidelines contributing.
Please see the following helpful guide about developing modular VOLTTRON agents
Disclaimer Notice
This material was prepared as an account of work sponsored by an agency of the
United States Government. Neither the United States Government nor the United
States Department of Energy, nor Battelle, nor any of their employees, nor any
jurisdiction or organization that has cooperated in the development of these
materials, makes any warranty, express or implied, or assumes any legal
liability or responsibility for the accuracy, completeness, or usefulness or any
information, apparatus, product, software, or process disclosed, or represents
that its use would not infringe privately owned rights.
Reference herein to any specific commercial product, process, or service by
trade name, trademark, manufacturer, or otherwise does not necessarily
constitute or imply its endorsement, recommendation, or favoring by the United
States Government or any agency thereof, or Battelle Memorial Institute. The
views and opinions of authors expressed herein do not necessarily state or
reflect those of the United States Government or any agency thereof.