feat: shard group messages by month

2026-09-15 23:53:51 +08:00
parent b7c2536527
commit 139681fadb
25 changed files with 1718 additions and 247 deletions
@@ -1115,6 +1115,14 @@ func TestSaveMessageMaybeKafkaPublishesWithoutDBPersist(t *testing.T) {
 	if publishedEnvelope.IdempotencyKey != "client-1" {
 		t.Fatalf("unexpected idempotency key: %q", publishedEnvelope.IdempotencyKey)
 	}
+	var payload kafkaMessagePersistPayload
+	if err := json.Unmarshal(publishedEnvelope.Payload, &payload); err != nil {
+		t.Fatalf("decode kafka message payload: %v", err)
+	}
+	wantMonth := msg.CreatedAt.UTC().Format("200601")
+	if payload.ShardMonth != wantMonth {
+		t.Fatalf("group message shard month was not frozen: payload=%q want=%q", payload.ShardMonth, wantMonth)
+	}
 }

 func TestShouldTryHotMessageFallback(t *testing.T) {