ExUnit-style assertions for Accrue's append-only event ledger.

Usage

use Accrue.Test.EventAssertions
# or
import Accrue.Test.EventAssertions

assert_event_recorded(
  type: "subscription.created",
  subject: subscription,
  subject_type: "Subscription",
  subject_id: subscription.id,
  actor_type: "system",
  data: %{"status" => "active"},
  matches: fn event -> event.schema_version == 1 end
)

Matching

• :type matches event.type
• :subject derives subject_type and subject_id from a struct or map with :id
• :subject_type, :subject_id, and :actor_type match the event fields directly
• :data subset-matches only the provided keys
• :matches runs a 1-arity predicate against %Accrue.Events.Event{}

Assertions query the test process' database sandbox state. Failure messages include the matcher and observed event type/subject summaries, but avoid dumping raw event payload data.