Vendor or replace openedx-events avro test utilities so the <11.1.1 pin can be lifted

[irfanuddinahmad]

Background

While migrating this repo's tooling to uv + pyproject.toml (#349), switching from exact pip-compile pins to open version ranges surfaced that openedx-events>=11.1.1 (its own tooling-modernization release, done under the same org-wide effort) drops openedx_events.event_bus.avro.tests.test_utilities from its published wheel.

src/edx_event_bus_kafka/internal/tests/test_producer.py imports SubTestData0 and create_simple_signal from that module directly, so upgrading past openedx-events 11.1.0 breaks this repo's test suite.

As a stopgap, pyproject.toml's [tool.edx_lint].uv_constraints (and the generated [tool.uv].constraint-dependencies) pin:

openedx-events<11.1.1

with an inline comment pointing at this issue.

Why this needs a real fix

A constraint-dependencies ceiling never gets bumped on its own — nothing forces anyone to revisit it, so it can silently cap openedx-events below its latest release indefinitely. Requires-Dist in the published package is not affected (the pin is uv/lockfile-only), so nothing downstream is capped in the meantime, but this repo's own dependency stays stuck.

Possible fixes

• Vendor the small test helpers (SubTestData0, create_simple_signal) into this repo's own test_utils, so this repo no longer depends on openedx-events shipping its internal test utilities.
• Or, have openedx-events publish a supported test-utilities extra/module that downstream consumers can rely on, and switch to importing from that instead.

References

• Discovered in feat: modernize Python tooling (pyproject.toml + uv + semantic-release) #349
• Follow-up requested in feat: modernize Python tooling (pyproject.toml + uv + semantic-release) #349 (comment)