fix: preserve unmanaged first-seen timestamps

Co-authored-by: genichin <4282227+genichin@users.noreply.github.com>
2026-09-12 13:33:05 +00:00
parent be2e73a2d6
commit f9284d1de8
4 changed files with 49 additions and 4 deletions
@@ -99,3 +99,30 @@ class TestCRUDRoundTrip:
        rows_b = pg_unmanaged_store.list_states(instance_key="inst-B", lifecycle_state="all")
        assert len(rows_a) == 1 and rows_a[0]["lifecycle_state"] == "resolved"
        assert len(rows_b) == 1 and rows_b[0]["quantity"] == 7
+
+    def test_reactivated_state_preserves_original_first_seen(self, pg_unmanaged_store):
+        t1 = datetime(2026, 9, 7, 0, 0, tzinfo=UTC)
+        t2 = t1 + timedelta(minutes=1)
+        t3 = t2 + timedelta(minutes=1)
+
+        pg_unmanaged_store.observe(
+            instance_key="inst-A",
+            symbol="008110",
+            quantity=3,
+            observed_at=t1,
+        )
+        pg_unmanaged_store.resolve_absent(
+            instance_key="inst-A",
+            observed_symbols=set(),
+            observed_at=t2,
+        )
+        reopened = pg_unmanaged_store.observe(
+            instance_key="inst-A",
+            symbol="008110",
+            quantity=5,
+            observed_at=t3,
+        )
+
+        assert reopened["transition"] == "detected"
+        assert reopened["state"]["first_seen_at"] == t1
+        assert reopened["state"]["last_seen_at"] == t3