pytest-ves

pytest fixtures and builders for ONAP VES 7.x events.

Generate ready-to-use VES (Virtual Event Streaming, ONAP DCAE) event payloads in Python tests — with sensible defaults, strong typing, and optional JSON Schema validation against the official ONAP CommonEventFormat_30.2.1_ONAP.json.

Status: v0.1.0 in development. APIs may shift until 1.0.

Why

Testing O-RAN SMO / Non-RT RIC / rApp / VES Collector code in Python currently requires either hand-writing VES JSON (error-prone, drifts with spec updates), spinning up a Docker container (onap/integration-simulators-nf-simulator-ves-client) just to emit a single event, or bridging through Robot Framework. This plugin lets you write:

def test_fault_handler(ves_fault_event):
    event = ves_fault_event(
        source_name="nrCellDU=1",
        alarm_condition="28",
        event_severity="CRITICAL",
    )
    result = my_handler(event)
    assert result.is_active

No container, no HTTP round-trip, no schema drift. The output is a plain dict that validates against the official ONAP CommonEventFormat schema.

Install

Once the first release lands on PyPI:

pip install pytest-ves                   # core only
pip install "pytest-ves[fast]"           # + jsonschema-rs (10-100x faster)
pip install "pytest-ves[factories]"      # + polyfactory (random / fuzz data)

Pre-PyPI interim (this project has not yet published its first release): install directly from the git repo:

pip install "pytest-ves @ git+https://github.com/thc1006/pytest-ves.git@main"
# optional extras are honoured the same way:
pip install "pytest-ves[fast] @ git+https://github.com/thc1006/pytest-ves.git@main"

Or clone and install editable for local development:

git clone https://github.com/thc1006/pytest-ves.git
cd pytest-ves
uv sync --all-extras     # or: pip install -e ".[fast,factories]"

Quickstart

import pytest
from pytest_ves import validate_ves

def test_fault_event_shape(ves_fault_event):
    event = ves_fault_event(source_name="gNB-1", alarm_condition="28")
    validate_ves(event)    # raises jsonschema.ValidationError on failure
    assert event["event"]["commonEventHeader"]["domain"] == "fault"

@pytest.mark.parametrize("severity", ["CRITICAL", "MAJOR", "MINOR"])
def test_severity_branches(ves_fault_event, severity):
    event = ves_fault_event(event_severity=severity)
    ...

Supported VES versions

Single vendored schema (CommonEventFormat_30.2.1_ONAP.json) covers 7.0 / 7.0.1 / 7.1 / 7.1.1 / 7.2 / 7.2.1. Builders emit 7.2.1 defaults.

Fixture catalogue

Shipped

Roadmap (NOT shipped, DO NOT import)

Planned for v0.3.0 once their nested sub-object / array-of-object shapes are modelled carefully. Attempting to use these right now will raise fixture '<name>' not found.

See docs/adr/ for design rationale. See CHANGELOG.md for release history.

Related projects

• o-ran-smo-ves-dashboards (sister project, TBD) — Grafana dashboard pack for VES events stored in InfluxDB via nonrtric-plt-influxlogger. Uses pytest-ves as its test-data seeder.
• o-ran-sc/smo-ves — upstream reference stack (VES Collector + Grafana + InfluxDB) used in our integration tests.
• onap/integration-simulators-nf-simulator-ves-client — upstream Java/Docker simulator; complementary tool, different use case.

License

Apache-2.0 for pytest-ves source. The vendored CommonEventFormat_30.2.1_ONAP.json is Apache-2.0 © AT&T Intellectual Property (2020), Nokia Solutions and Networks (2021). See NOTICE.