375 lines
18 KiB
Swift
375 lines
18 KiB
Swift
import XCTest
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@testable import FuelBoardShared
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// FuelBoard shared-logic tests. Run from FuelBoardTests/ with `swift test`.
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// Covers the pure logic that drives the app + widget: title sanitizer, price
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// guard, RAG, sorting baselines, distance, brand normalization, fuel labels.
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final class TitleSanitizerTests: XCTestCase {
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func testAllCapsToTitleCase() {
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XCTAssertEqual("SHELL SALTERHEBBLE".sanitizedStationTitle, "Shell Salterhebble")
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XCTAssertEqual("TESCO EXPRESS YORK".sanitizedStationTitle, "Tesco Express York")
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}
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func testSainsburysApostrophe() {
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XCTAssertEqual("SAINSBURYS HALIFAX".sanitizedStationTitle, "Sainsbury's Halifax")
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XCTAssertEqual("SAINSBURYS".sanitizedStationTitle, "Sainsbury's")
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}
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func testAcronymsStayUppercase() {
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XCTAssertEqual("BP HESSLE".sanitizedStationTitle, "BP Hessle")
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XCTAssertEqual("MFG BRIGHOUSE".sanitizedStationTitle, "MFG Brighouse")
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XCTAssertEqual("ASDA WAKEFIELD".sanitizedStationTitle, "ASDA Wakefield")
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XCTAssertEqual("MOTO WETHERBY".sanitizedStationTitle, "MOTO Wetherby")
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}
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func testConnectorsLowercase() {
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XCTAssertEqual("GULF OIL OF MANCHESTER".sanitizedStationTitle, "Gulf Oil of Manchester")
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}
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func testLtd() {
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XCTAssertEqual("SMITHS GARAGES LTD".sanitizedStationTitle, "Smiths Garages Ltd")
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}
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func testHyphenParenChunks() {
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XCTAssertEqual("NEWCASTLE-UNDER-LYME SERVICES".sanitizedStationTitle, "Newcastle-Under-Lyme Services")
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XCTAssertEqual("SPAR (MEADOWHALL)".sanitizedStationTitle, "SPAR (Meadowhall)")
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}
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func testMixedCasePassthrough() {
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XCTAssertEqual("Shell Salterhebble".sanitizedStationTitle, "Shell Salterhebble")
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XCTAssertEqual("Esso M62 EASTBOUND".sanitizedStationTitle, "Esso M62 Eastbound")
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}
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func testNoLettersPassthrough() {
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XCTAssertEqual("M62 J25".sanitizedStationTitle, "M62 J25")
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}
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func testAmpersandChunkReset() {
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XCTAssertEqual("SHELL & BP SERVICES".sanitizedStationTitle, "Shell & BP Services")
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}
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}
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final class PriceGuardTests: XCTestCase {
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func testInBandPricesKept() throws {
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let json = """
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{"stations":[{"id":"s1","name":"SHELL LEEDS","brand":"Shell","address":"A1","postcode":"LS1 1AA","lat":53.8,"lng":-1.5,"prices":{"E10":137.9,"E5":144.9,"DIESEL":142.9}}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertEqual(stations.count, 1)
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XCTAssertEqual(stations[0].prices[.e10], 137.9)
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XCTAssertEqual(stations[0].prices[.e5], 144.9)
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XCTAssertEqual(stations[0].prices[.diesel], 142.9)
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}
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func testRelayMetaDecoded() throws {
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let json = """
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{"source":"api","stations_count":8010,"data_updated":"2026-08-12T10:23:00.000Z","stations":[{"id":"s1","name":"SHELL LEEDS","brand":"Shell","address":"A1","postcode":"LS1 1AA","lat":53.8,"lng":-1.5,"prices":{"E10":137.9}}]}
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"""
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let meta = FuelPriceProvider.decodeRelayMeta(from: Data(json.utf8))
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XCTAssertEqual(meta?.source, "api")
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XCTAssertEqual(meta?.stationCount, 8010)
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XCTAssertEqual(meta?.dataUpdated, "2026-08-12T10:23:00.000Z")
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}
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func testRelayMetaAbsentIsNil() throws {
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// Older relay without envelope metadata must not fail decode — nil meta.
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let json = """
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{"stations":[{"id":"s1","name":"SHELL LEEDS","brand":"Shell","address":"A1","postcode":"LS1 1AA","lat":53.8,"lng":-1.5,"prices":{"E10":137.9}}]}
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"""
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let meta = FuelPriceProvider.decodeRelayMeta(from: Data(json.utf8))
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XCTAssertNil(meta?.source)
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XCTAssertNil(meta?.stationCount)
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XCTAssertNil(meta?.dataUpdated)
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}
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func testOutOfBandPricesDropped() throws {
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let json = """
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{"stations":[{"id":"s1","name":"GARBAGE","brand":"X","address":"A","postcode":"L","lat":0,"lng":0,"prices":{"E10":1.3,"E5":1589.0,"DIESEL":137.9}}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertEqual(stations.count, 1)
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XCTAssertNil(stations[0].prices[.e10], "1.3p garbage must be dropped")
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XCTAssertNil(stations[0].prices[.e5], "1589p garbage must be dropped")
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XCTAssertEqual(stations[0].prices[.diesel], 137.9, "in-band price kept")
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}
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func testBoundaryValues() throws {
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let json = """
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{"stations":[{"id":"s1","name":"BOUNDARY","brand":"X","address":"A","postcode":"L","lat":0,"lng":0,"prices":{"E10":50.0,"E5":500.0,"DIESEL":49.9}}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertEqual(stations[0].prices[.e10], 50.0, "lower bound inclusive")
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XCTAssertEqual(stations[0].prices[.e5], 500.0, "upper bound inclusive")
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XCTAssertNil(stations[0].prices[.diesel], "49.9 below band dropped")
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}
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func testB7VariantsMapToDiesel() throws {
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// A station sells ONE diesel grade — test each variant individually.
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for (grade, price) in [("B7S", 141.9), ("B7P", 143.9), ("B10", 140.9)] {
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let json = """
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{"stations":[{"id":"s1","name":"DIESEL MAP","brand":"X","address":"A","postcode":"L","lat":0,"lng":0,"prices":{"\(grade)":\(price)}}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertEqual(stations[0].prices[.diesel], price, "\(grade) maps to diesel")
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}
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}
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func testLegacyPriceFallback() throws {
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let json = """
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{"stations":[{"id":"s1","name":"LEGACY","brand":"X","address":"A","postcode":"L","lat":0,"lng":0,"price":136.5}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertEqual(stations[0].prices[.e10], 136.5, "legacy price maps to E10")
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}
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func testLegacyGarbagePriceDropped() throws {
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let json = """
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{"stations":[{"id":"s1","name":"LEGACY BAD","brand":"X","address":"A","postcode":"L","lat":0,"lng":0,"price":1589.0}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertTrue(stations[0].prices.isEmpty, "garbage legacy price dropped")
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}
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func testRelayNameSanitizedAtDecode() throws {
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let json = """
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{"stations":[{"id":"s1","name":"TESCO EXPRESS LEEDS","brand":"Tesco","address":"A","postcode":"L","lat":0,"lng":0,"prices":{"E10":137.9}}]}
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"""
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let stations = try FuelPriceProvider.decodeStations(from: Data(json.utf8))
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XCTAssertEqual(stations[0].name, "Tesco Express Leeds")
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}
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}
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final class RAGTests: XCTestCase {
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func testGreenWithinOneAndHalf() {
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XCTAssertEqual(RAGRating.rating(price: 138.0, cheapest: 137.0), .green)
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XCTAssertEqual(RAGRating.rating(price: 138.5, cheapest: 137.0), .green, "exactly 1.5p is green")
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}
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func testAmberWithinFour() {
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XCTAssertEqual(RAGRating.rating(price: 141.0, cheapest: 137.0), .amber)
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XCTAssertEqual(RAGRating.rating(price: 141.0, cheapest: 137.0), .amber)
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XCTAssertEqual(RAGRating.rating(price: 141.0, cheapest: 137.0), .amber, "exactly 4p is amber")
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}
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func testRedBeyondFour() {
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XCTAssertEqual(RAGRating.rating(price: 141.1, cheapest: 137.0), .red)
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}
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}
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final class SortBaselineTests: XCTestCase {
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// Baseline = cheapest within the chosen radius (both Cheapest and Closest).
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// TOP badge goes to the cheapest station in the pool.
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func testCheapestFirstSorting() {
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let a = FuelStation(id: "a", name: "A", brand: "X", address: "", postcode: "", lat: 53.7, lng: -1.8, prices: [.e10: 140.0], priceUpdated: nil)
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let b = FuelStation(id: "b", name: "B", brand: "X", address: "", postcode: "", lat: 53.71, lng: -1.81, prices: [.e10: 137.0], priceUpdated: nil)
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let c = FuelStation(id: "c", name: "C", brand: "X", address: "", postcode: "", lat: 53.72, lng: -1.82, prices: [.e10: 139.0], priceUpdated: nil)
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let sorted = [a, b, c].sorted { $0.prices[.e10]! < $1.prices[.e10]! }
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XCTAssertEqual(sorted.map(\.id), ["b", "c", "a"])
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}
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// Ties: stations at the same cheapest price are found (within 0.01p) and
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// sorted nearest-first from the reference location.
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func testTiedStations() {
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func station(_ id: String, _ lat: Double, _ lng: Double, _ price: Double) -> FuelStation {
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FuelStation(id: id, name: id, brand: "X", address: "", postcode: "",
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lat: lat, lng: lng, prices: [.e10: price], priceUpdated: nil)
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}
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let far = station("far", 53.72, -1.82, 137.0)
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let near = station("near", 53.71, -1.81, 137.0)
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let other = station("other", 53.70, -1.80, 141.0)
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let tied = FuelStore.tiedStations(in: [far, other, near], fuel: .e10, price: 137.0,
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fromLat: 53.7, lng: -1.8)
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XCTAssertEqual(tied.map(\.id), ["near", "far"], "tied stations sorted nearest-first")
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}
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// A price 0.005p away still counts as a tie; 0.05p away does not.
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func testTiedStationsTolerance() {
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func station(_ id: String, _ price: Double) -> FuelStation {
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FuelStation(id: id, name: id, brand: "X", address: "", postcode: "",
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lat: 53.7, lng: -1.8, prices: [.e10: price], priceUpdated: nil)
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}
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let a = station("a", 137.005)
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let b = station("b", 137.05)
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XCTAssertEqual(FuelStore.tiedStations(in: [a, b], fuel: .e10, price: 137.0,
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fromLat: 53.7, lng: -1.8).map(\.id), ["a"])
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}
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}
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final class DistanceTests: XCTestCase {
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func testZeroDistance() {
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let s = FuelStation(id: "a", name: "A", brand: "X", address: "", postcode: "", lat: 53.7, lng: -1.8, prices: [:], priceUpdated: nil)
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XCTAssertEqual(s.distanceKM(to: 53.7, lng2: -1.8), 0, accuracy: 0.001)
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}
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func testKnownDistance() {
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// London (51.5074, -0.1278) → Manchester (53.4808, -2.2426) ≈ 262 km
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let s = FuelStation(id: "a", name: "A", brand: "X", address: "", postcode: "", lat: 51.5074, lng: -0.1278, prices: [:], priceUpdated: nil)
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XCTAssertEqual(s.distanceKM(to: 53.4808, lng2: -2.2426), 262, accuracy: 5)
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}
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func testMilesConversion() {
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// 5 miles ≈ 8.05 km (app uses × 1.60934)
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XCTAssertEqual(5 * 1.60934, 8.0467, accuracy: 0.001)
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// 262 km ≈ 162.8 miles (display uses × 0.621371)
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XCTAssertEqual(262 * 0.621371, 162.8, accuracy: 0.1)
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}
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}
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final class BrandTests: XCTestCase {
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private func station(brand: String) -> FuelStation {
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FuelStation(id: UUID().uuidString, name: "N", brand: brand, address: "", postcode: "", lat: 0, lng: 0, prices: [:], priceUpdated: nil)
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}
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func testKnownBrands() {
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XCTAssertEqual(station(brand: "SHELL LEEDS ROAD").brandImageName, "brand_shell")
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XCTAssertEqual(station(brand: "SAINSBURYS").brandImageName, "brand_sainsburys")
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XCTAssertEqual(station(brand: "MORRISONS").brandImageName, "brand_morrisons")
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XCTAssertEqual(station(brand: "TESCO EXPRESS").brandImageName, "brand_tesco")
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XCTAssertEqual(station(brand: "BP").brandImageName, "brand_bp")
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XCTAssertEqual(station(brand: "ESSO").brandImageName, "brand_esso")
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XCTAssertEqual(station(brand: "ASDA").brandImageName, "brand_asda")
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XCTAssertEqual(station(brand: "GULF").brandImageName, "brand_gulf")
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XCTAssertEqual(station(brand: "JET").brandImageName, "brand_jet")
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XCTAssertEqual(station(brand: "TEXACO").brandImageName, "brand_texaco")
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XCTAssertEqual(station(brand: "APPLEGREEN").brandImageName, "brand_applegreen")
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}
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func testUnknownBrand() {
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XCTAssertNil(station(brand: "WELCOME BREAK").brandImageName)
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XCTAssertNil(station(brand: "VALERO").brandImageName)
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XCTAssertNil(station(brand: "").brandImageName)
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}
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}
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final class FuelTypeLabelTests: XCTestCase {
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func testDisplayNames() {
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// E10/E5 grades are intentionally not part of user-facing labels.
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XCTAssertEqual(FuelType.e10.displayName, "Unleaded")
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XCTAssertEqual(FuelType.e5.displayName, "Premium")
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XCTAssertEqual(FuelType.diesel.displayName, "Diesel")
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}
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func testDistanceUnitConversion() {
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XCTAssertEqual(DistanceUnit.miles.toKM(1), 1.60934, accuracy: 0.00001)
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XCTAssertEqual(DistanceUnit.kilometers.toKM(5), 5)
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XCTAssertEqual(DistanceUnit.miles.fromKM(1.60934), 1, accuracy: 0.00001)
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XCTAssertEqual(DistanceUnit.kilometers.fromKM(2.5), 2.5)
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}
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func testDistanceUnitFormat() {
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XCTAssertEqual(DistanceUnit.miles.format(1.60934), "1.0 mi")
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XCTAssertEqual(DistanceUnit.kilometers.format(3.4), "3.4 km")
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}
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}
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final class FavouriteRefreshTests: XCTestCase {
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func testRefreshedFavouritesApplyFreshPrices() {
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let fav = FavouriteEntry(station: FuelStation(id: "s1", name: "OLD NAME", brand: "X", address: "", postcode: "", lat: 0, lng: 0, prices: [.e10: 140.0], priceUpdated: nil), fuel: .e10)
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let fresh = FuelStation(id: "s1", name: "Fresh Station", brand: "X", address: "", postcode: "", lat: 0, lng: 0, prices: [.e10: 132.9], priceUpdated: nil)
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let updated = FuelStore.refreshedFavourites([fav], from: [fresh])
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XCTAssertEqual(updated.count, 1)
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XCTAssertEqual(updated[0].station.name, "Fresh Station")
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XCTAssertEqual(updated[0].station.prices[.e10], 132.9)
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XCTAssertEqual(updated[0].fuel, .e10, "fuel scoping survives refresh")
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}
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func testRefreshedFavouritesKeepUnmatchedSnapshot() {
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let fav = FavouriteEntry(station: FuelStation(id: "s1", name: "Cached", brand: "X", address: "", postcode: "", lat: 0, lng: 0, prices: [.e10: 140.0], priceUpdated: nil), fuel: .diesel)
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let updated = FuelStore.refreshedFavourites([fav], from: [])
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XCTAssertEqual(updated[0].station.name, "Cached", "unmatched favourite keeps its snapshot")
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XCTAssertEqual(updated[0].station.prices[.e10], 140.0)
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XCTAssertEqual(updated[0].fuel, .diesel, "fuel scoping survives unmatched refresh")
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}
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func testFavouriteEntryIDIsFuelScoped() {
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let station = FuelStation(id: "s1", name: "X", brand: "X", address: "", postcode: "", lat: 0, lng: 0, prices: [.e10: 140.0, .diesel: 150.0], priceUpdated: nil)
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let unleaded = FavouriteEntry(station: station, fuel: .e10)
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let diesel = FavouriteEntry(station: station, fuel: .diesel)
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XCTAssertNotEqual(unleaded.id, diesel.id, "same station favourited for two fuels is two distinct favourites")
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XCTAssertTrue(unleaded.id.hasSuffix("|s1"))
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XCTAssertTrue(diesel.id.hasPrefix("diesel|"))
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}
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}
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final class AlertsFuelTests: XCTestCase {
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func testAlertsFuelRoundTrips() {
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FuelStore.saveAlertsFuel(.diesel)
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XCTAssertEqual(FuelStore.loadAlertsFuel(), .diesel, "alerts fuel persists independently")
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}
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func testAlertsFuelDefaultsToUnleaded() {
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// Fresh state (test isolation) defaults to Unleaded like the app's
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// other fuel selections.
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FuelStore.saveAlertsFuel(.e5)
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FuelStore.saveAlertsFuel(.e10)
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XCTAssertEqual(FuelStore.loadAlertsFuel(), .e10)
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}
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}
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final class AlertRadiusFollowTests: XCTestCase {
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func testAlertRadiusOptionsAreMileFriendly() {
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// 1–2 city, 3 town, 5 default, 8 motorway — the geofence ceiling.
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XCTAssertEqual(FuelStore.alertRadiusOptions, [1, 2, 3, 5, 8])
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}
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func testLegacyRadiusClampsToCap() {
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// Old options went to 20 km; stored values must not exceed the 8-mi cap.
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FuelStore.saveAlertsRadius(30)
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XCTAssertEqual(FuelStore.loadAlertsRadius(), FuelStore.alertFollowCapKM, accuracy: 0.001)
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FuelStore.saveAlertsRadius(5) // still inside the cap — untouched
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XCTAssertEqual(FuelStore.loadAlertsRadius(), 5, accuracy: 0.001)
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}
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func testFollowSearchRoundTrips() {
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FuelStore.saveAlertsFollowsSearch(true)
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XCTAssertTrue(FuelStore.loadAlertsFollowsSearch())
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FuelStore.saveAlertsFollowsSearch(false)
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XCTAssertFalse(FuelStore.loadAlertsFollowsSearch())
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FuelStore.saveLiveActivityFollowsSearch(true)
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XCTAssertTrue(FuelStore.loadLiveActivityFollowsSearch())
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FuelStore.saveLiveActivityFollowsSearch(false)
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XCTAssertFalse(FuelStore.loadLiveActivityFollowsSearch())
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}
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func testEffectiveRadiusManualWhenNotFollowing() {
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let eff = FuelStore.effectiveAlertsRadiusKM(followsSearch: false, manualKM: 3)
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XCTAssertEqual(eff, 3, "manual radius passes through when not following")
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}
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func testEffectiveRadiusFollowsSearchCapped() {
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// 15-mile search must cap at the 8-mile geofence ceiling.
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FuelStore.saveDistanceUnit(.miles)
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FuelStore.saveStationLimit(15)
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let eff = FuelStore.effectiveAlertsRadiusKM(followsSearch: true, manualKM: 3)
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XCTAssertEqual(eff, FuelStore.alertFollowCapKM, accuracy: 0.001)
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}
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func testEffectiveRadiusFollowsSmallSearch() {
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// 5-mile search follows exactly (8.05 km), under the cap.
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FuelStore.saveDistanceUnit(.miles)
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FuelStore.saveStationLimit(5)
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let eff = FuelStore.effectiveAlertsRadiusKM(followsSearch: true, manualKM: 3)
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XCTAssertEqual(eff, 5 * 1.60934, accuracy: 0.001)
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}
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}
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final class DistanceLabelTests: XCTestCase {
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func testUnitLabelPluralizesMiles() {
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XCTAssertEqual(DistanceUnit.miles.label(for: 1), "mile")
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XCTAssertEqual(DistanceUnit.miles.label(for: 2), "miles")
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XCTAssertEqual(DistanceUnit.miles.label(for: 5), "miles")
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XCTAssertEqual(DistanceUnit.kilometers.label(for: 1), "km")
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XCTAssertEqual(DistanceUnit.kilometers.label(for: 8), "km")
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}
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func testDisplayMilesShowsTrueDistance() {
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// Picker labels must match what the option really means.
|
||
XCTAssertEqual(DistanceUnit.miles.displayMiles(5), 5)
|
||
XCTAssertEqual(DistanceUnit.miles.displayMiles(15), 15)
|
||
XCTAssertEqual(DistanceUnit.kilometers.displayMiles(5), 8) // 5 mi = 8.05 km
|
||
XCTAssertEqual(DistanceUnit.kilometers.displayMiles(10), 16) // 10 mi = 16.1 km
|
||
XCTAssertEqual(DistanceUnit.kilometers.displayMiles(15), 24) // 15 mi = 24.1 km
|
||
}
|
||
}
|