import XCTest
@testable import LChatCore

// Drift gate for the notification extension's decrypt path: a push payload's
// blob (produced by the web crypto) must open with GroupKey exactly as the NSE
// does it. A failure means the NSE would fall back to the generic banner for
// every push — the wire format drifted from crypto.js.
final class PushBlobDecryptTests: XCTestCase {
    struct Vector: Decodable {
        let keyB64: String
        let blob: String
        let expectName: String
        let expectText: String
    }
    struct Payload: Decodable {
        let name: String?
        let text: String?
    }

    func testPushBlobDecryptsLikeTheNSE() throws {
        let v = try fixture(Vector.self, "push-blob-vector")
        let raw = try XCTUnwrap(Data(base64urlEncoded: v.keyB64), "fixture key is not valid base64url")
        let key = try GroupKey(rawKey: raw)
        let payload = try key.decryptJSON(Payload.self, blob: v.blob)
        XCTAssertEqual(payload.name, v.expectName)
        XCTAssertEqual(payload.text, v.expectText)
    }
}