Hivescope

Pytest E2E testing library for HiveMind protocol implementations.

Hivescope provides an in-process simulator for HiveMind network topologies. It needs no real sockets, no running servers, and no network processes. Tests wire MasterNode, SatelliteNode, and RelayNode objects together directly. The library records every HiveMessage for inspection.

Used by hivemind-core e2e tests and by hivemind-test-harness for multi-repo topology and stress scenarios.

Install

pip install hivescope

With OVOS skill-level testing (live MiniCroft backend):

pip install "hivescope[ovos]"

To track dev instead of the last release:

pip install "hivescope @ git+https://github.com/JarbasHiveMind/hivescope@dev"

Quick Start

Minimal handshake test

from hivescope.scenarios import single_satellite
from hivescope.assertions import assert_handshake_complete, assert_encryption_match

def test_handshake():
    builder = single_satellite()
    builder.start_all()
    try:
        master = builder.get_master("M0")
        satellite = builder.get_satellite("S0")
        assert_handshake_complete(master, satellite)
        assert_encryption_match(master, satellite)
    finally:
        builder.stop_all()

Using pytest fixtures

Add to your repo's tests/conftest.py:

pytest_plugins = ['hivescope.pytest_fixtures']

Then use the provided fixtures in tests:

def test_message_forwarded(master_node, satellite_node):
    from ovos_bus_client.message import Message
    satellite_node.send(Message("test:ping", {}))
    master_node.recorder.assert_received("bus", count=1)

ACL enforcement test

def test_acl_denied(master_node, restricted_satellite):
    from ovos_bus_client.message import Message
    from hivescope.assertions import assert_policy_denied

    restricted_satellite.send(Message("admin:command", {}))
    # master_node.recorder logs every inbound message BEFORE policy runs, so
    # it always has a record — checking it cannot prove the message was
    # denied. Assert the actual denial signal instead: the satellite must
    # receive a hive.policy.denied response for this message type.
    assert_policy_denied(master_node, restricted_satellite, "admin:command")

Key Concepts

TopologyBuilder

Assembles and lifecycle-manages a test topology. All add_* methods return the created node. start_all() and stop_all() start and stop all nodes in dependency order.

builder = TopologyBuilder()
master = builder.add_master("M0")
sat0 = builder.add_satellite("S0", upstream=master)
relay = builder.add_relay("R0", upstream=master)
sat1 = builder.add_satellite("S1", upstream=relay)
builder.start_all()
# ... run tests ...
builder.stop_all()

Preset Scenarios

hivescope.scenarios provides pre-wired topologies for common patterns:

All functions return a not-yet-started TopologyBuilder. Call .start_all() before testing and .stop_all() in a finally block (or use the pytest fixtures for automatic teardown).

MessageRecorder

Every node has a .recorder that captures all inbound and outbound HiveMessages.

# Assert a BUS message was received exactly once
master_node.recorder.assert_received("bus", count=1)

# Assert it was NOT received
master_node.recorder.assert_not_received("propagate")

# Block until a message arrives; returns the RecordedMessage, or None on timeout
master_node.wait_for("shake", timeout=5)

# For a test that should fail on timeout, use assert_received instead:
master_node.recorder.assert_received("shake", count=1)

# Inspect recorded messages
for msg in master_node.recorder.messages:
    print(msg.direction, msg.msg_type, msg.peer)

Pytest Fixtures

Enable in conftest.py: pytest_plugins = ['hivescope.pytest_fixtures']

Copy-Paste Templates

templates/ contains ready-to-copy test files. Drop them into tests/e2e/ in your repo:

See docs/index.md for the pending items.

Configuration

API Reference

Full public API documentation: docs/index.md

License

Apache-2.0