Fix dish deletion list flicker with stable identity/order and add regression test

2026-02-26 11:06:54 +01:00
parent 37c2e01a09
commit 9f4cf7484d
5 changed files with 29 additions and 6 deletions
@@ -59,5 +59,17 @@ final class AutocompleteEngineTests: XCTestCase {
        XCTAssertEqual(result.unfilledCount, 1)
        XCTAssertNil(tuesdayDinner.dishId)
    }
-}

+    func testDishStableSortRemainsConsistentAfterDeletion() {
+        let base = Date()
+        let oldest = Dish(id: UUID(uuidString: "00000000-0000-0000-0000-000000000001")!, name: "Old", createdAt: base.addingTimeInterval(-60))
+        let newest = Dish(id: UUID(uuidString: "00000000-0000-0000-0000-000000000002")!, name: "New", createdAt: base)
+        let middle = Dish(id: UUID(uuidString: "00000000-0000-0000-0000-000000000003")!, name: "Middle", createdAt: base.addingTimeInterval(-30))
+
+        let initial = Dish.stableSortedForDisplay([oldest, newest, middle]).map(\.id)
+        XCTAssertEqual(initial, [newest.id, middle.id, oldest.id])
+
+        let afterDeletion = Dish.stableSortedForDisplay([newest, oldest]).map(\.id)
+        XCTAssertEqual(afterDeletion, [newest.id, oldest.id])
+    }
+}