| 1 | import XCTest |
| 2 | @testable import LChatCore |
| 3 | |
| 4 | // đŸ¤– Card contract tests — the Swift third of test/event-vectors/cards.json |
| 5 | // (web: test/cards.test.mjs; Go: internal/bot/card_test.go). The fixture is a |
| 6 | // byte-identical copy of the canonical file (drift-checked by the web test). |
| 7 | // A failure here means native has drifted from the contract: fix the |
| 8 | // implementation, never the vector, unless the schema is deliberately |
| 9 | // changing on all three platforms in one PR. |
| 10 | final class CardVectorTests: XCTestCase { |
| 11 | struct VectorFile: Decodable { |
| 12 | let schema: Int |
| 13 | let vectors: [Vector] |
| 14 | } |
| 15 | struct Vector: Decodable { |
| 16 | let name: String |
| 17 | let card: JSONValue? |
| 18 | let want: JSONValue? |
| 19 | } |
| 20 | |
| 21 | func loadVectors() throws -> VectorFile { |
| 22 | let url = try XCTUnwrap(Bundle.module.url(forResource: "Fixtures/cards-vector", withExtension: "json"), |
| 23 | "cards-vector.json fixture missing") |
| 24 | return try JSONDecoder().decode(VectorFile.self, from: Data(contentsOf: url)) |
| 25 | } |
| 26 | |
| 27 | func testVectors() throws { |
| 28 | let file = try loadVectors() |
| 29 | XCTAssertEqual(file.schema, Card.schema, "vector file schema must match Card.schema") |
| 30 | for v in file.vectors { |
| 31 | let got = Card.normalize(v.card) |
| 32 | if let want = v.want, want != .null { |
| 33 | guard let got else { |
| 34 | XCTFail("\(v.name): normalized to nil, want \(want)") |
| 35 | continue |
| 36 | } |
| 37 | XCTAssertEqual(got.canonical(), want, v.name) |
| 38 | } else { |
| 39 | XCTAssertNil(got, "\(v.name): must fail closed") |
| 40 | } |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | // The payload decode carries a card through and ignores its absence. |
| 45 | func testPayloadCarriesCard() throws { |
| 46 | let json = #"{"name":"Dawn","text":"fallback","card":{"schema":1,"blocks":[{"b":"text","text":"hi"}]}}"# |
| 47 | let p = try JSONDecoder().decode(MessagePayload.self, from: Data(json.utf8)) |
| 48 | let card = Card.normalize(p.card) |
| 49 | XCTAssertEqual(card?.blocks, [.text("hi")]) |
| 50 | |
| 51 | let plain = try JSONDecoder().decode(MessagePayload.self, from: Data(#"{"name":"A","text":"x"}"#.utf8)) |
| 52 | XCTAssertNil(plain.card) |
| 53 | XCTAssertNil(Card.normalize(plain.card)) |
| 54 | } |
| 55 | |
| 56 | // Normalize is idempotent through the canonical form. |
| 57 | func testIdempotent() throws { |
| 58 | let file = try loadVectors() |
| 59 | for v in file.vectors { |
| 60 | guard let once = Card.normalize(v.card) else { continue } |
| 61 | XCTAssertEqual(Card.normalize(once.canonical()), once, v.name) |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
amadan