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| 1 | +import XCTest |
| 2 | +@testable import Lunchpad |
| 3 | + |
| 4 | +@MainActor |
| 5 | +final class RootPageStoreTests: XCTestCase { |
| 6 | + private var suiteName: String! |
| 7 | + private var defaults: UserDefaults! |
| 8 | + private var now: Date! |
| 9 | + |
| 10 | + override func setUp() { |
| 11 | + super.setUp() |
| 12 | + suiteName = "LunchpadTests.\(UUID().uuidString)" |
| 13 | + defaults = UserDefaults(suiteName: suiteName) |
| 14 | + defaults.removePersistentDomain(forName: suiteName) |
| 15 | + now = Date(timeIntervalSince1970: 1_700_000_000) |
| 16 | + } |
| 17 | + |
| 18 | + override func tearDown() { |
| 19 | + defaults.removePersistentDomain(forName: suiteName) |
| 20 | + defaults = nil |
| 21 | + suiteName = nil |
| 22 | + now = nil |
| 23 | + super.tearDown() |
| 24 | + } |
| 25 | + |
| 26 | + private func makeStore() -> RootPageStore { |
| 27 | + RootPageStore(defaults: defaults, clock: { self.now }) |
| 28 | + } |
| 29 | + |
| 30 | + func testRestoreWithinExpiryReturnsSavedPage() { |
| 31 | + let store = makeStore() |
| 32 | + store.save(page: 2) |
| 33 | + now = now.addingTimeInterval(10) // 10s < 30s |
| 34 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 2) |
| 35 | + } |
| 36 | + |
| 37 | + func testRestoreAfterExpiryReturnsZero() { |
| 38 | + let store = makeStore() |
| 39 | + store.save(page: 2) |
| 40 | + now = now.addingTimeInterval(31) // > 30s |
| 41 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 0) |
| 42 | + } |
| 43 | + |
| 44 | + func testClampWhenSavedPageExceedsPageCount() { |
| 45 | + let store = makeStore() |
| 46 | + store.save(page: 4) // fresh (no time advance) |
| 47 | + XCTAssertEqual(store.restoredPage(availablePageCount: 2), 1) // min(4, 2-1) = 1 |
| 48 | + } |
| 49 | + |
| 50 | + func testMissingSavedPageReturnsZero() { |
| 51 | + let store = makeStore() |
| 52 | + // Nothing saved. |
| 53 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 0) |
| 54 | + } |
| 55 | + |
| 56 | + func testMissingTimestampReturnsZero() { |
| 57 | + let store = makeStore() |
| 58 | + store.save(page: 2) |
| 59 | + defaults.removeObject(forKey: "rootPageSavedAt") |
| 60 | + // A page of unknown age is never restored. |
| 61 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 0) |
| 62 | + } |
| 63 | + |
| 64 | + func testNegativeSavedPageReturnsZero() { |
| 65 | + let store = makeStore() |
| 66 | + store.save(page: 2) |
| 67 | + defaults.set(-3, forKey: "rootPageIndex") // simulate external tampering |
| 68 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 0) |
| 69 | + } |
| 70 | + |
| 71 | + func testFutureDatedSaveTimeReturnsZero() { |
| 72 | + let store = makeStore() |
| 73 | + store.save(page: 2) |
| 74 | + now = now.addingTimeInterval(-100) // clock moved back; savedAt is now in the future |
| 75 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 0) |
| 76 | + } |
| 77 | + |
| 78 | + func testZeroPageCountReturnsZero() { |
| 79 | + let store = makeStore() |
| 80 | + store.save(page: 2) // fresh |
| 81 | + XCTAssertEqual(store.restoredPage(availablePageCount: 0), 0) |
| 82 | + } |
| 83 | + |
| 84 | + func testSavedPageZeroIsRestored() { |
| 85 | + let store = makeStore() |
| 86 | + store.save(page: 0) |
| 87 | + XCTAssertEqual(store.restoredPage(availablePageCount: 5), 0) |
| 88 | + // The timestamp must still be present and fresh for this to be a real save, not a missing one. |
| 89 | + XCTAssertNotNil(defaults.object(forKey: "rootPageSavedAt")) |
| 90 | + } |
| 91 | +} |
| 92 | + |
| 93 | +final class RootPageSelectionTests: XCTestCase { |
| 94 | + func testFolderOpenReturnsRootPageBeforeEnteringFolder() { |
| 95 | + XCTAssertEqual( |
| 96 | + RootPageSelection.rootPageToSave( |
| 97 | + folderOpen: true, |
| 98 | + searchActive: false, |
| 99 | + currentPage: 1, |
| 100 | + rootPageBeforeEnteringFolder: 3 |
| 101 | + ), |
| 102 | + 3 |
| 103 | + ) |
| 104 | + } |
| 105 | + |
| 106 | + func testSearchActiveReturnsZeroRegardlessOfCurrentPage() { |
| 107 | + XCTAssertEqual( |
| 108 | + RootPageSelection.rootPageToSave( |
| 109 | + folderOpen: false, |
| 110 | + searchActive: true, |
| 111 | + currentPage: 2, |
| 112 | + rootPageBeforeEnteringFolder: 0 |
| 113 | + ), |
| 114 | + 0 |
| 115 | + ) |
| 116 | + } |
| 117 | + |
| 118 | + func testDefaultReturnsCurrentPage() { |
| 119 | + XCTAssertEqual( |
| 120 | + RootPageSelection.rootPageToSave( |
| 121 | + folderOpen: false, |
| 122 | + searchActive: false, |
| 123 | + currentPage: 4, |
| 124 | + rootPageBeforeEnteringFolder: 0 |
| 125 | + ), |
| 126 | + 4 |
| 127 | + ) |
| 128 | + } |
| 129 | + |
| 130 | + func testFolderOpenTakesPrecedenceOverSearch() { |
| 131 | + // Inside a folder the search field is cleared, so this state is unreachable in practice; |
| 132 | + // the function still picks the folder branch deterministically. |
| 133 | + XCTAssertEqual( |
| 134 | + RootPageSelection.rootPageToSave( |
| 135 | + folderOpen: true, |
| 136 | + searchActive: true, |
| 137 | + currentPage: 1, |
| 138 | + rootPageBeforeEnteringFolder: 3 |
| 139 | + ), |
| 140 | + 3 |
| 141 | + ) |
| 142 | + } |
| 143 | + |
| 144 | + func testNegativeInputsAreClampedToZero() { |
| 145 | + XCTAssertEqual( |
| 146 | + RootPageSelection.rootPageToSave( |
| 147 | + folderOpen: false, |
| 148 | + searchActive: false, |
| 149 | + currentPage: -1, |
| 150 | + rootPageBeforeEnteringFolder: -2 |
| 151 | + ), |
| 152 | + 0 |
| 153 | + ) |
| 154 | + } |
| 155 | +} |
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