| 1 | import XCTest |
| 2 | @testable import LChatCore |
| 3 | |
| 4 | // 🤖 The shared avatar-thumbnail cache the notification extension reads to put |
| 5 | // a sender's face on a banner. Network-free: sync's fetch path is exercised |
| 6 | // only for entries whose source marker is stale, so the tests drive the |
| 7 | // skip/remove/roundtrip contract with seeded files and unreachable URLs. |
| 8 | final class SharedAvatarCacheTests: XCTestCase { |
| 9 | private var dir: URL! |
| 10 | |
| 11 | override func setUp() { |
| 12 | super.setUp() |
| 13 | dir = FileManager.default.temporaryDirectory |
| 14 | .appendingPathComponent("avatar-cache-tests-\(UUID().uuidString)", isDirectory: true) |
| 15 | SharedAvatarCache.directoryOverride = dir |
| 16 | } |
| 17 | |
| 18 | override func tearDown() { |
| 19 | SharedAvatarCache.directoryOverride = nil |
| 20 | try? FileManager.default.removeItem(at: dir) |
| 21 | super.tearDown() |
| 22 | } |
| 23 | |
| 24 | private func source(blobID: String) -> AvatarSource { |
| 25 | // .1 is reserved/unroutable → any fetch attempt fails fast. |
| 26 | AvatarSource(blobID: blobID, keyB64: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA", |
| 27 | baseURL: URL(string: "http://192.0.2.1")!, token: "t") |
| 28 | } |
| 29 | |
| 30 | func testStoreThenReadRoundtrip() { |
| 31 | let jpeg = Data([0xff, 0xd8, 0xff, 0xe0, 1, 2, 3]) |
| 32 | SharedAvatarCache.store(jpeg: jpeg, blobID: "b1", origin: "https://a.example", uid: "u1") |
| 33 | XCTAssertEqual(SharedAvatarCache.imageData(origin: "https://a.example", uid: "u1"), jpeg) |
| 34 | // Same uid on another instance is a different person — different slot. |
| 35 | XCTAssertNil(SharedAvatarCache.imageData(origin: "https://b.example", uid: "u1")) |
| 36 | } |
| 37 | |
| 38 | func testStemIsFilesystemSafeAndDistinct() { |
| 39 | let a = SharedAvatarCache.fileStem(origin: "https://a.example", uid: "u/1") |
| 40 | let b = SharedAvatarCache.fileStem(origin: "https://b.example", uid: "u/1") |
| 41 | XCTAssertNotEqual(a, b) |
| 42 | XCTAssertTrue(a.allSatisfy(\.isHexDigit)) |
| 43 | XCTAssertEqual(a, SharedAvatarCache.fileStem(origin: "https://a.example", uid: "u/1")) |
| 44 | } |
| 45 | |
| 46 | func testSyncKeepsUnchangedEntryWithoutFetching() async { |
| 47 | let jpeg = Data([9, 9, 9]) |
| 48 | SharedAvatarCache.store(jpeg: jpeg, blobID: "b1", origin: "o", uid: "u1") |
| 49 | // Marker matches the stored blob → sync must not touch the file (a |
| 50 | // fetch would fail against the unroutable host and drop it). |
| 51 | await SharedAvatarCache.sync(origin: "o", avatars: [("u1", source(blobID: "b1"))]) |
| 52 | XCTAssertEqual(SharedAvatarCache.imageData(origin: "o", uid: "u1"), jpeg) |
| 53 | } |
| 54 | |
| 55 | func testSyncKeepsStaleThumbnailWhenFetchFails() async { |
| 56 | let jpeg = Data([9, 9, 9]) |
| 57 | SharedAvatarCache.store(jpeg: jpeg, blobID: "old", origin: "o", uid: "u1") |
| 58 | // Photo changed but the refetch fails → the old face beats no face. |
| 59 | await SharedAvatarCache.sync(origin: "o", avatars: [("u1", source(blobID: "new"))]) |
| 60 | XCTAssertEqual(SharedAvatarCache.imageData(origin: "o", uid: "u1"), jpeg) |
| 61 | } |
| 62 | |
| 63 | func testSyncRemovesEntryWhenPhotoCleared() async { |
| 64 | SharedAvatarCache.store(jpeg: Data([1]), blobID: "b1", origin: "o", uid: "u1") |
| 65 | await SharedAvatarCache.sync(origin: "o", avatars: [("u1", nil)]) |
| 66 | XCTAssertNil(SharedAvatarCache.imageData(origin: "o", uid: "u1")) |
| 67 | } |
| 68 | } |
| 69 | |
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