Function findOutboxMessage

findOutboxMessage(
source: OutboxMessageAssertionSource,
expectation: OutboxMessageExpectation,
): OutboxMessage | undefined
Find the first outbox message matching expected fields.
Parameters
- source: OutboxMessageAssertionSource
  Memory outbox or message snapshot array.
- expectation: OutboxMessageExpectation
  Partial message fields to match.
Returns OutboxMessage | undefined
The first matching message, or undefined.
- Defined in packages/core/src/ports/testing.ts:1455