Tied cheapest stations become notification action buttons

When several stations share the cheapest price within the radius (within 0.01p), the alert registers a dynamic UNNotificationCategory with up to 4 action buttons (brand + distance, nearest first) and taps open directions to the chosen station. Shared FuelStore.tiedStations helper used by both the live geofence path and the Settings real-data test; 35 tests pass.
2026-08-12 10:48:08 +01:00
parent cbe01f4219
commit 1f50d7dcf4
3 changed files with 173 additions and 13 deletions
@@ -146,6 +146,33 @@ final class SortBaselineTests: XCTestCase {
        let sorted = [a, b, c].sorted { $0.prices[.e10]! < $1.prices[.e10]! }
        XCTAssertEqual(sorted.map(\.id), ["b", "c", "a"])
    }
+
+    // Ties: stations at the same cheapest price are found (within 0.01p) and
+    // sorted nearest-first from the reference location.
+    func testTiedStations() {
+        func station(_ id: String, _ lat: Double, _ lng: Double, _ price: Double) -> FuelStation {
+            FuelStation(id: id, name: id, brand: "X", address: "", postcode: "",
+                        lat: lat, lng: lng, prices: [.e10: price], priceUpdated: nil)
+        }
+        let far   = station("far",   53.72, -1.82, 137.0)
+        let near  = station("near",  53.71, -1.81, 137.0)
+        let other = station("other", 53.70, -1.80, 141.0)
+        let tied = FuelStore.tiedStations(in: [far, other, near], fuel: .e10, price: 137.0,
+                                          fromLat: 53.7, lng: -1.8)
+        XCTAssertEqual(tied.map(\.id), ["near", "far"], "tied stations sorted nearest-first")
+    }
+
+    // A price 0.005p away still counts as a tie; 0.05p away does not.
+    func testTiedStationsTolerance() {
+        func station(_ id: String, _ price: Double) -> FuelStation {
+            FuelStation(id: id, name: id, brand: "X", address: "", postcode: "",
+                        lat: 53.7, lng: -1.8, prices: [.e10: price], priceUpdated: nil)
+        }
+        let a = station("a", 137.005)
+        let b = station("b", 137.05)
+        XCTAssertEqual(FuelStore.tiedStations(in: [a, b], fuel: .e10, price: 137.0,
+                                              fromLat: 53.7, lng: -1.8).map(\.id), ["a"])
+    }
 }

 final class DistanceTests: XCTestCase {