Function polkadot_node_subsystem_test_helpers::subsystem_test_harness

pub fn subsystem_test_harness<M, OverseerFactory, Overseer, TestFactory, Test>(
    overseer_factory: OverseerFactory,
    test_factory: TestFactory,
)
where
    OverseerFactory: FnOnce(TestSubsystemContextHandle<M>) -> Overseer,
    Overseer: Future<Output = ()>,
    TestFactory: FnOnce(TestSubsystemContext<M, SpawnGlue<TaskExecutor>>) -> Test,
    Test: Future<Output = ()>,

Test a subsystem, mocking the overseer

Pass in two async closures: one mocks the overseer, the other runs the test from the perspective of a subsystem.

Times out in 5 seconds.