dishka

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The harness does not import dishka. The mediator is already built, and around wraps it. Read invocations. The harness builder stays unused.

See DI containers.

from cqrs.container.dishka import DishkaCQRSContainer

mediator = bootstrap.bootstrap(
    di_container=DishkaCQRSContainer(container),
    commands_mapper=commands_mapper,
    scope_strategy=cqrs.ScopeStrategy.HANDLER,
)
async with test_harness.around(mediator) as harness:
    await mediator.send(CreateOrder(sku="book"))
    harness.invocations.assert_entered(CreateOrderHandler)

Library example: examples/testing/dishka_container.py.