| 1 | import XCTest |
| 2 | @testable import LChatCore |
| 3 | |
| 4 | // The @mention render-layer scan (Mentions.swift) — the native twin of the |
| 5 | // web's renderRichText mention rules (apps/chat.js), so both feeds agree on |
| 6 | // exactly which "@…" runs are mentions. |
| 7 | final class MentionsTests: XCTestCase { |
| 8 | private func index(me: String = "me") -> MentionIndex { |
| 9 | MentionIndex(entries: [ |
| 10 | .init(label: "Ada", uid: "u1", display: "Ada", tappable: true), |
| 11 | .init(label: "Ada Lovelace", uid: "u2", display: "Ada L", tappable: true), |
| 12 | .init(label: "Bob", uid: "u3", display: "Bobby", tappable: true), |
| 13 | .init(label: "Me", uid: me, display: "Me", tappable: false), |
| 14 | ]) |
| 15 | } |
| 16 | |
| 17 | func testBasicMention() { |
| 18 | let segs = index().split("hi @Bob!") |
| 19 | XCTAssertEqual(segs, [ |
| 20 | .text("hi "), |
| 21 | .mention(.init(label: "Bob", uid: "u3", display: "Bobby", tappable: true)), |
| 22 | .text("!"), |
| 23 | ]) |
| 24 | } |
| 25 | |
| 26 | func testLongestLabelWins() { |
| 27 | // "@Ada Lovelace" must resolve to the two-word member, never "Ada"+text. |
| 28 | let segs = index().split("@Ada Lovelace hello") |
| 29 | guard case .mention(let e) = segs.first else { return XCTFail("no mention") } |
| 30 | XCTAssertEqual(e.uid, "u2") |
| 31 | XCTAssertEqual(segs.dropFirst().first, .text(" hello")) |
| 32 | } |
| 33 | |
| 34 | func testMidWordAndEmailNeverMatch() { |
| 35 | // The web's prevCh guard: /[\w@.]/ blocks mid-word @, emails, and |
| 36 | // domain-ish text. |
| 37 | XCTAssertEqual(index().split("mail@Bob.com"), [.text("mail@Bob.com")]) |
| 38 | XCTAssertEqual(index().split("x@Bob"), [.text("x@Bob")]) |
| 39 | XCTAssertEqual(index().split("a.@Bob"), [.text("a.@Bob")]) |
| 40 | } |
| 41 | |
| 42 | func testTrailingWordCharBlocks() { |
| 43 | // (?![\w]) — "@Bobcat" is not a mention of Bob… |
| 44 | XCTAssertEqual(index().split("@Bobcat"), [.text("@Bobcat")]) |
| 45 | // …but trailing punctuation is fine. |
| 46 | guard case .mention(let e)? = index().split("@Bob,").first else { |
| 47 | return XCTFail("no mention") |
| 48 | } |
| 49 | XCTAssertEqual(e.uid, "u3") |
| 50 | } |
| 51 | |
| 52 | func testStartAndAfterWhitespaceMatch() { |
| 53 | XCTAssertEqual(index().split("@Bob").count, 1) |
| 54 | let segs = index().split("(@Bob)") |
| 55 | XCTAssertEqual(segs, [ |
| 56 | .text("("), |
| 57 | .mention(.init(label: "Bob", uid: "u3", display: "Bobby", tappable: true)), |
| 58 | .text(")"), |
| 59 | ]) |
| 60 | } |
| 61 | |
| 62 | func testSelfMentionNotTappable() { |
| 63 | guard case .mention(let e)? = index().split("@Me too").first else { |
| 64 | return XCTFail("no mention") |
| 65 | } |
| 66 | XCTAssertFalse(e.tappable) |
| 67 | } |
| 68 | |
| 69 | func testAdjacentMentions() { |
| 70 | // "@Ada@Bob" — the web's regex leaves the second as plain text (its |
| 71 | // prev char is a word char / the chip boundary). |
| 72 | XCTAssertEqual(index().split("@Ada@Bob"), [ |
| 73 | .mention(.init(label: "Ada", uid: "u1", display: "Ada", tappable: true)), |
| 74 | .text("@Bob"), |
| 75 | ]) |
| 76 | // Separated by a space both match. |
| 77 | let both = index().split("@Ada @Bob") |
| 78 | XCTAssertEqual(both.count, 3) |
| 79 | } |
| 80 | |
| 81 | func testUnknownNameStaysText() { |
| 82 | XCTAssertEqual(index().split("@Nobody here"), [.text("@Nobody here")]) |
| 83 | } |
| 84 | |
| 85 | func testMayMentionFastPath() { |
| 86 | XCTAssertFalse(index().mayMention("no at sign")) |
| 87 | XCTAssertTrue(index().mayMention("hi @Bob")) |
| 88 | XCTAssertFalse(MentionIndex(entries: []).mayMention("hi @Bob")) |
| 89 | } |
| 90 | |
| 91 | func testRevChangesWithDisplay() { |
| 92 | // The memo key: a rename (display change) must produce a new rev. |
| 93 | let a = index() |
| 94 | let b = MentionIndex(entries: [ |
| 95 | .init(label: "Ada", uid: "u1", display: "Ada", tappable: true), |
| 96 | .init(label: "Ada Lovelace", uid: "u2", display: "Ada L", tappable: true), |
| 97 | .init(label: "Bob", uid: "u3", display: "Robert", tappable: true), |
| 98 | .init(label: "Me", uid: "me", display: "Me", tappable: false), |
| 99 | ]) |
| 100 | XCTAssertNotEqual(a.rev, b.rev) |
| 101 | } |
| 102 | |
| 103 | func testUnicodeTextAroundMentions() { |
| 104 | let segs = index().split("héllo 👋 @Bob — ça va?") |
| 105 | XCTAssertEqual(segs, [ |
| 106 | .text("héllo 👋 "), |
| 107 | .mention(.init(label: "Bob", uid: "u3", display: "Bobby", tappable: true)), |
| 108 | .text(" — ça va?"), |
| 109 | ]) |
| 110 | } |
| 111 | |
| 112 | func testMentionLinkRoundTrip() { |
| 113 | let uid = "user id/with?odd#chars" |
| 114 | guard let url = MentionLink.url(uid: uid) else { return XCTFail("no url") } |
| 115 | XCTAssertEqual(MentionLink.uid(from: url), uid) |
| 116 | XCTAssertNil(MentionLink.uid(from: URL(string: "https://example.com/x")!)) |
| 117 | } |
| 118 | } |
| 119 | |
amadan