def render_timeline_event(context, field, event):
Test for instantiation of the ``EventCategory`` model.
dataset/ETHPy150Open edgewall/trac/trac/timeline/api.py/ITimelineEventProvider.render_timeline_event--crossover with--dataset/ETHPy150Open bitmazk/django-calendarium/calendarium/tests/models_tests.py/EventCategoryTestCase.test_instantiation