Function stop_order_far_from_market 

pub async fn stop_order_far_from_market<U: StopOrderExecutor + ?Sized>(
    ud: &U,
    id: &InstrumentId,
    stop_price: Price,
)

Stop orders, the common path: place, list, cancel by cid, then a stop-limit cancelled by broker id.

Steps and checks:

1. A stop-loss SELL, one lot, at stop_price. The ack carries the same cid and a non-empty broker id. The order is then in active_stop_orders() with the same cid, kind StopLoss, side Sell, the stop price and quantity we sent, no limit price, and state Active. cancel_stop by [brokapi_core::StopOrderRef::Cid] succeeds and the order leaves the list.
2. A stop-limit SELL with limit price stop_price * 0.99. It appears in the list with kind StopLimit and a limit price. It is cancelled by [brokapi_core::StopOrderRef::Broker] and leaves the list.
3. A stop-limit without a limit price is refused with [brokapi_core::Error::Rejected] before anything is sent, and the active list is empty afterwards (so the mock must start with no stop orders).

stop_price must be far BELOW the market: the orders are SELL stops, they must not trigger. The command gate must be open, so call reconcile first. There is no rate-limit retry in this scenario.

The mock must accept a stop order, list it while it waits, and cancel it.

Panics

With [conformance:stop_order_far_from_market] <reason> when any check above fails.

Examples

brokapi_conformance::reconcile(&ud).await;
assert!(ud.caps().supports_stop_orders);
brokapi_conformance::stop_order_far_from_market(&ud, &sber, Price::from(200)).await;