chore: rename project to clawdbot
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@@ -0,0 +1,285 @@
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import Foundation
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import os
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import Testing
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@testable import Clawdbot
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@Suite struct GatewayConnectionTests {
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private final class FakeWebSocketTask: WebSocketTasking, @unchecked Sendable {
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private let connectRequestID = OSAllocatedUnfairLock<String?>(initialState: nil)
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private let pendingReceiveHandler =
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OSAllocatedUnfairLock<(@Sendable (Result<URLSessionWebSocketTask.Message, Error>)
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-> Void)?>(initialState: nil)
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private let cancelCount = OSAllocatedUnfairLock(initialState: 0)
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private let sendCount = OSAllocatedUnfairLock(initialState: 0)
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private let helloDelayMs: Int
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var state: URLSessionTask.State = .suspended
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init(helloDelayMs: Int = 0) {
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self.helloDelayMs = helloDelayMs
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}
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func snapshotCancelCount() -> Int { self.cancelCount.withLock { $0 } }
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func resume() {
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self.state = .running
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}
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func cancel(with closeCode: URLSessionWebSocketTask.CloseCode, reason: Data?) {
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_ = (closeCode, reason)
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self.state = .canceling
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self.cancelCount.withLock { $0 += 1 }
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let handler = self.pendingReceiveHandler.withLock { handler in
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defer { handler = nil }
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return handler
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}
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handler?(Result<URLSessionWebSocketTask.Message, Error>.failure(URLError(.cancelled)))
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}
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func send(_ message: URLSessionWebSocketTask.Message) async throws {
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let currentSendCount = self.sendCount.withLock { count in
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defer { count += 1 }
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return count
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}
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// First send is the connect handshake request. Subsequent sends are request frames.
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if currentSendCount == 0 {
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guard case let .data(data) = message else { return }
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if let obj = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
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(obj["type"] as? String) == "req",
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(obj["method"] as? String) == "connect",
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let id = obj["id"] as? String
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{
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self.connectRequestID.withLock { $0 = id }
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}
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return
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}
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guard case let .data(data) = message else { return }
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guard
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let obj = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
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(obj["type"] as? String) == "req",
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let id = obj["id"] as? String
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else {
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return
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}
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let response = Self.responseData(id: id)
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let handler = self.pendingReceiveHandler.withLock { $0 }
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handler?(Result<URLSessionWebSocketTask.Message, Error>.success(.data(response)))
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}
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func receive() async throws -> URLSessionWebSocketTask.Message {
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if self.helloDelayMs > 0 {
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try await Task.sleep(nanoseconds: UInt64(self.helloDelayMs) * 1_000_000)
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}
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let id = self.connectRequestID.withLock { $0 } ?? "connect"
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return .data(Self.connectOkData(id: id))
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}
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func receive(
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completionHandler: @escaping @Sendable (Result<URLSessionWebSocketTask.Message, Error>) -> Void)
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{
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self.pendingReceiveHandler.withLock { $0 = completionHandler }
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}
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func emitIncoming(_ data: Data) {
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let handler = self.pendingReceiveHandler.withLock { $0 }
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handler?(Result<URLSessionWebSocketTask.Message, Error>.success(.data(data)))
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}
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private static func connectOkData(id: String) -> Data {
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let json = """
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{
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"type": "res",
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"id": "\(id)",
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"ok": true,
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"payload": {
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"type": "hello-ok",
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"protocol": 2,
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"server": { "version": "test", "connId": "test" },
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"features": { "methods": [], "events": [] },
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"snapshot": {
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"presence": [ { "ts": 1 } ],
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"health": {},
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"stateVersion": { "presence": 0, "health": 0 },
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"uptimeMs": 0
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},
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"policy": { "maxPayload": 1, "maxBufferedBytes": 1, "tickIntervalMs": 30000 }
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}
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}
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"""
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return Data(json.utf8)
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}
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private static func responseData(id: String) -> Data {
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let json = """
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{
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"type": "res",
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"id": "\(id)",
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"ok": true,
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"payload": { "ok": true }
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}
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"""
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return Data(json.utf8)
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}
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}
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private final class FakeWebSocketSession: WebSocketSessioning, @unchecked Sendable {
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private let makeCount = OSAllocatedUnfairLock(initialState: 0)
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private let tasks = OSAllocatedUnfairLock(initialState: [FakeWebSocketTask]())
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private let helloDelayMs: Int
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init(helloDelayMs: Int = 0) {
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self.helloDelayMs = helloDelayMs
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}
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func snapshotMakeCount() -> Int { self.makeCount.withLock { $0 } }
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func snapshotCancelCount() -> Int {
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self.tasks.withLock { tasks in
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tasks.reduce(0) { $0 + $1.snapshotCancelCount() }
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}
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}
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func latestTask() -> FakeWebSocketTask? {
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self.tasks.withLock { $0.last }
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}
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func makeWebSocketTask(url: URL) -> WebSocketTaskBox {
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_ = url
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self.makeCount.withLock { $0 += 1 }
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let task = FakeWebSocketTask(helloDelayMs: self.helloDelayMs)
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self.tasks.withLock { $0.append(task) }
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return WebSocketTaskBox(task: task)
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}
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}
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private final class ConfigSource: @unchecked Sendable {
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private let token = OSAllocatedUnfairLock<String?>(initialState: nil)
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init(token: String?) {
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self.token.withLock { $0 = token }
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}
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func snapshotToken() -> String? { self.token.withLock { $0 } }
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func setToken(_ value: String?) { self.token.withLock { $0 = value } }
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}
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@Test func requestReusesSingleWebSocketForSameConfig() async throws {
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let session = FakeWebSocketSession()
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let url = URL(string: "ws://example.invalid")!
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let cfg = ConfigSource(token: nil)
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let conn = GatewayConnection(
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configProvider: { (url, cfg.snapshotToken()) },
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sessionBox: WebSocketSessionBox(session: session))
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_ = try await conn.request(method: "status", params: nil)
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#expect(session.snapshotMakeCount() == 1)
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_ = try await conn.request(method: "status", params: nil)
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#expect(session.snapshotMakeCount() == 1)
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#expect(session.snapshotCancelCount() == 0)
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}
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@Test func requestReconfiguresAndCancelsOnTokenChange() async throws {
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let session = FakeWebSocketSession()
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let url = URL(string: "ws://example.invalid")!
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let cfg = ConfigSource(token: "a")
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let conn = GatewayConnection(
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configProvider: { (url, cfg.snapshotToken()) },
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sessionBox: WebSocketSessionBox(session: session))
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_ = try await conn.request(method: "status", params: nil)
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#expect(session.snapshotMakeCount() == 1)
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cfg.setToken("b")
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_ = try await conn.request(method: "status", params: nil)
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#expect(session.snapshotMakeCount() == 2)
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#expect(session.snapshotCancelCount() == 1)
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}
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@Test func concurrentRequestsStillUseSingleWebSocket() async throws {
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let session = FakeWebSocketSession(helloDelayMs: 150)
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let url = URL(string: "ws://example.invalid")!
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let cfg = ConfigSource(token: nil)
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let conn = GatewayConnection(
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configProvider: { (url, cfg.snapshotToken()) },
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sessionBox: WebSocketSessionBox(session: session))
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async let r1: Data = conn.request(method: "status", params: nil)
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async let r2: Data = conn.request(method: "status", params: nil)
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_ = try await (r1, r2)
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#expect(session.snapshotMakeCount() == 1)
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}
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@Test func subscribeReplaysLatestSnapshot() async throws {
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let session = FakeWebSocketSession()
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let url = URL(string: "ws://example.invalid")!
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let cfg = ConfigSource(token: nil)
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let conn = GatewayConnection(
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configProvider: { (url, cfg.snapshotToken()) },
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sessionBox: WebSocketSessionBox(session: session))
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_ = try await conn.request(method: "status", params: nil)
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let stream = await conn.subscribe(bufferingNewest: 10)
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var iterator = stream.makeAsyncIterator()
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let first = await iterator.next()
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guard case let .snapshot(snap) = first else {
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Issue.record("expected snapshot, got \(String(describing: first))")
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return
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}
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#expect(snap.type == "hello-ok")
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}
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@Test func subscribeEmitsSeqGapBeforeEvent() async throws {
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let session = FakeWebSocketSession()
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let url = URL(string: "ws://example.invalid")!
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let cfg = ConfigSource(token: nil)
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let conn = GatewayConnection(
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configProvider: { (url, cfg.snapshotToken()) },
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sessionBox: WebSocketSessionBox(session: session))
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let stream = await conn.subscribe(bufferingNewest: 10)
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var iterator = stream.makeAsyncIterator()
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_ = try await conn.request(method: "status", params: nil)
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_ = await iterator.next() // snapshot
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let evt1 = Data(
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"""
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{"type":"event","event":"presence","payload":{"presence":[]},"seq":1}
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""".utf8)
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session.latestTask()?.emitIncoming(evt1)
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let firstEvent = await iterator.next()
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guard case let .event(firstFrame) = firstEvent else {
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Issue.record("expected event, got \(String(describing: firstEvent))")
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return
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}
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#expect(firstFrame.seq == 1)
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let evt3 = Data(
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"""
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{"type":"event","event":"presence","payload":{"presence":[]},"seq":3}
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""".utf8)
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session.latestTask()?.emitIncoming(evt3)
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let gap = await iterator.next()
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guard case let .seqGap(expected, received) = gap else {
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Issue.record("expected seqGap, got \(String(describing: gap))")
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return
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}
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#expect(expected == 2)
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#expect(received == 3)
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let secondEvent = await iterator.next()
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guard case let .event(secondFrame) = secondEvent else {
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Issue.record("expected event, got \(String(describing: secondEvent))")
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return
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}
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#expect(secondFrame.seq == 3)
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}
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}
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