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import OpenClawKit
import Testing
@testable import OpenClawChatUI
private func makeSessionActionOutboxDirectory() throws -> URL {
let directory = FileManager.default.temporaryDirectory
.appendingPathComponent("chat-session-action-tests-\(UUID().uuidString)", isDirectory: true)
try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
return directory
}
private func sessionActionOutboxCommand(
id: String,
text: String) -> OpenClawChatOutboxCommand
{
OpenClawChatOutboxCommand(
id: id,
sessionKey: "main",
text: text,
thinking: "off",
createdAt: Date().timeIntervalSince1970,
status: .queued,
retryCount: 0,
lastError: nil)
}
private actor LegacyForkTransportState {
var parentKeys: [String] = []
func record(_ parentKey: String) {
self.parentKeys.append(parentKey)
}
}
private final class LegacyForkTransport: @unchecked Sendable, OpenClawChatTransport {
let state = LegacyForkTransportState()
func requestHistory(sessionKey _: String) async throws -> OpenClawChatHistoryPayload {
throw CancellationError()
}
func sendMessage(
sessionKey _: String,
message _: String,
thinking _: String,
idempotencyKey _: String,
attachments _: [OpenClawChatAttachmentPayload]) async throws -> OpenClawChatSendResponse
{
throw CancellationError()
}
func forkSession(parentKey: String) async throws -> String {
await self.state.record(parentKey)
return "legacy-child"
}
func requestHealth(timeoutMs _: Int) async throws -> Bool {
false
}
func events() -> AsyncStream<OpenClawChatTransportEvent> {
AsyncStream { $0.finish() }
}
}
private actor SessionActionTransportState {
var forkedParentKeys: [String] = []
var forkedFromLastCompleted: [Bool] = []
var rewoundMessages: [(sessionKey: String, entryID: String)] = []
var forkedMessages: [(sessionKey: String, entryID: String)] = []
var branchListSessionKeys: [String] = []
var branchListCallCount = 0
var switchedBranches: [(sessionKey: String, leafEntryID: String)] = []
var sentSessionKeys: [String] = []
var historySessionKeys: [String] = []
var historyCallCount = 0
var patchedKeys: [String] = []
var patchIdentities: [(key: String, expectedSessionID: String?)] = []
var deletedKeys: [String] = []
var groupPuts: [[String]] = []
var createdKeys: [String] = []
var createdAgentIDs: [String?] = []
var createdParentKeys: [String?] = []
var resetSessionKeys: [String] = []
var sessionListRequestCount = 0
func recordFork(_ key: String, fromLastCompleted: Bool) {
self.forkedParentKeys.append(key)
self.forkedFromLastCompleted.append(fromLastCompleted)
}
func recordRewind(sessionKey: String, entryID: String) {
self.rewoundMessages.append((sessionKey, entryID))
}
func recordForkAtMessage(sessionKey: String, entryID: String) {
self.forkedMessages.append((sessionKey, entryID))
}
func recordBranchList(_ sessionKey: String) -> Int {
self.branchListSessionKeys.append(sessionKey)
defer { self.branchListCallCount += 1 }
return self.branchListCallCount
}
func recordBranchSwitch(sessionKey: String, leafEntryID: String) {
self.switchedBranches.append((sessionKey, leafEntryID))
}
func recordSend(sessionKey: String) {
self.sentSessionKeys.append(sessionKey)
}
func recordHistory(_ sessionKey: String) -> Int {
self.historySessionKeys.append(sessionKey)
defer { self.historyCallCount += 1 }
return self.historyCallCount
}
func recordPatch(_ key: String, expectedSessionID: String?) {
self.patchedKeys.append(key)
self.patchIdentities.append((key: key, expectedSessionID: expectedSessionID))
}
func recordGroupPut(_ names: [String]) {
self.groupPuts.append(names)
}
func recordDelete(_ key: String) {
self.deletedKeys.append(key)
}
func recordCreate(key: String, agentID: String?, parentKey: String?) -> Int {
let index = self.createdKeys.count
self.createdKeys.append(key)
self.createdAgentIDs.append(agentID)
self.createdParentKeys.append(parentKey)
return index
}
func recordReset(_ sessionKey: String) {
self.resetSessionKeys.append(sessionKey)
}
func recordSessionListRequest() {
self.sessionListRequestCount += 1
}
}
/// Signals the exact suspension point before an action completes, then holds it so
/// navigation can advance deterministically before the stale result resumes.
private struct SessionActionCompletionGate: Sendable {
private let startedStream: AsyncStream<Void>
private let startedContinuation: AsyncStream<Void>.Continuation
private let releaseStream: AsyncStream<Void>
private let releaseContinuation: AsyncStream<Void>.Continuation
init() {
let started = AsyncStream<Void>.makeStream(bufferingPolicy: .bufferingNewest(1))
self.startedStream = started.stream
self.startedContinuation = started.continuation
let release = AsyncStream<Void>.makeStream(bufferingPolicy: .bufferingNewest(1))
self.releaseStream = release.stream
self.releaseContinuation = release.continuation
}
func suspendCompletion() async {
self.startedContinuation.yield()
var iterator = self.releaseStream.makeAsyncIterator()
_ = await iterator.next()
}
func waitUntilStarted() async -> Bool {
var iterator = self.startedStream.makeAsyncIterator()
return await iterator.next() != nil
}
func release() {
self.releaseContinuation.yield()
}
}
private final class SessionActionTransport: @unchecked Sendable, OpenClawChatTransport {
private let state = SessionActionTransportState()
private let createGate: SessionActionCompletionGate?
private let resetGate: SessionActionCompletionGate?
private let createIsUnsupported: Bool
private let forkGate: SessionActionCompletionGate?
private let rewindGate: SessionActionCompletionGate?
private let forkAtMessageGate: SessionActionCompletionGate?
private let branchSwitchGate: SessionActionCompletionGate?
private let branchListGates: [SessionActionCompletionGate]
private let rewindEditorText: String?
private let rewindEditorAttachments: [OpenClawChatEditorAttachment]?
private let forkAtMessageSessionKey: String
private let forkAtMessageEditorText: String?
private let forkAtMessageEditorAttachments: [OpenClawChatEditorAttachment]?
private let branches: [OpenClawChatSessionBranch]
private let branchListResponses: [[OpenClawChatSessionBranch]]
private let branchListFailureIndices: Set<Int>
private let historyGates: [Int: SessionActionCompletionGate]
private let historyFailureIndices: Set<Int>
private let sendSucceeds: Bool
init(
createGate: SessionActionCompletionGate? = nil,
resetGate: SessionActionCompletionGate? = nil,
createIsUnsupported: Bool = false,
forkGate: SessionActionCompletionGate? = nil,
rewindGate: SessionActionCompletionGate? = nil,
forkAtMessageGate: SessionActionCompletionGate? = nil,
branchSwitchGate: SessionActionCompletionGate? = nil,
branchListGates: [SessionActionCompletionGate] = [],
rewindEditorText: String? = "rewound draft",
rewindEditorAttachments: [OpenClawChatEditorAttachment]? = nil,
forkAtMessageSessionKey: String = "forked-at-message",
forkAtMessageEditorText: String? = "forked draft",
forkAtMessageEditorAttachments: [OpenClawChatEditorAttachment]? = nil,
branches: [OpenClawChatSessionBranch] = [],
branchListResponses: [[OpenClawChatSessionBranch]] = [],
branchListFailureIndices: Set<Int> = [],
historyGates: [Int: SessionActionCompletionGate] = [:],
historyFailureIndices: Set<Int> = [],
sendSucceeds: Bool = false)
{
self.createGate = createGate
self.resetGate = resetGate
self.createIsUnsupported = createIsUnsupported
self.forkGate = forkGate
self.rewindGate = rewindGate
self.forkAtMessageGate = forkAtMessageGate
self.branchSwitchGate = branchSwitchGate
self.branchListGates = branchListGates
self.rewindEditorText = rewindEditorText
self.rewindEditorAttachments = rewindEditorAttachments
self.forkAtMessageSessionKey = forkAtMessageSessionKey
self.forkAtMessageEditorText = forkAtMessageEditorText
self.forkAtMessageEditorAttachments = forkAtMessageEditorAttachments
self.branches = branches
self.branchListResponses = branchListResponses
self.branchListFailureIndices = branchListFailureIndices
self.historyGates = historyGates
self.historyFailureIndices = historyFailureIndices
self.sendSucceeds = sendSucceeds
}
func requestHistory(sessionKey: String) async throws -> OpenClawChatHistoryPayload {
let callIndex = await self.state.recordHistory(sessionKey)
await self.historyGates[callIndex]?.suspendCompletion()
if self.historyFailureIndices.contains(callIndex) {
throw NSError(
domain: "SessionActionTransport",
code: 2,
userInfo: [NSLocalizedDescriptionKey: "history unavailable"])
}
return OpenClawChatHistoryPayload(
sessionKey: sessionKey,
sessionId: "session-\(sessionKey)",
messages: [],
thinkingLevel: "off")
}
func sendMessage(
sessionKey: String,
message _: String,
thinking _: String,
idempotencyKey: String,
attachments _: [OpenClawChatAttachmentPayload]) async throws -> OpenClawChatSendResponse
{
await self.state.recordSend(sessionKey: sessionKey)
if self.sendSucceeds {
return OpenClawChatSendResponse(runId: idempotencyKey, status: "accepted")
}
throw NSError(domain: "SessionActionTransport", code: 1)
}
func forkSession(parentKey: String, fromLastCompleted: Bool) async throws -> String {
await self.state.recordFork(parentKey, fromLastCompleted: fromLastCompleted)
await self.forkGate?.suspendCompletion()
return "forked"
}
func rewindSession(
sessionKey: String,
entryId: String) async throws -> OpenClawChatRewindResponse
{
await self.state.recordRewind(sessionKey: sessionKey, entryID: entryId)
await self.rewindGate?.suspendCompletion()
return OpenClawChatRewindResponse(
editorText: self.rewindEditorText,
editorAttachments: self.rewindEditorAttachments)
}
func forkSessionAtMessage(
sessionKey: String,
entryId: String) async throws -> OpenClawChatForkAtMessageResponse
{
await self.state.recordForkAtMessage(sessionKey: sessionKey, entryID: entryId)
await self.forkAtMessageGate?.suspendCompletion()
return OpenClawChatForkAtMessageResponse(
sessionKey: self.forkAtMessageSessionKey,
editorText: self.forkAtMessageEditorText,
editorAttachments: self.forkAtMessageEditorAttachments)
}
func listSessionBranches(
sessionKey: String,
agentID _: String?) async throws -> OpenClawChatSessionBranchesResponse
{
let callIndex = await self.state.recordBranchList(sessionKey)
if self.branchListGates.indices.contains(callIndex) {
await self.branchListGates[callIndex].suspendCompletion()
}
if self.branchListFailureIndices.contains(callIndex) {
throw NSError(domain: "SessionActionTransport", code: 3)
}
let branches = self.branchListResponses.indices.contains(callIndex)
? self.branchListResponses[callIndex]
: self.branches
return OpenClawChatSessionBranchesResponse(branches: branches)
}
func switchSessionBranch(sessionKey: String, agentID _: String?, leafEntryId: String) async throws {
await self.state.recordBranchSwitch(sessionKey: sessionKey, leafEntryID: leafEntryId)
await self.branchSwitchGate?.suspendCompletion()
}
func patchSession(
key: String,
expectedSessionID: String?,
label _: String??,
category _: String??,
color _: String?? = nil,
pinned _: Bool?,
archived _: Bool?,
unread _: Bool?) async throws
{
await self.state.recordPatch(key, expectedSessionID: expectedSessionID)
}
func acquireSessionGroupsRouteLease() async -> OpenClawChatSessionGroupsRouteLease? {
let state = self.state
return OpenClawChatSessionGroupsRouteLease(
listGroups: {
OpenClawChatSessionGroupsResponse(groups: [
OpenClawChatSessionGroup(name: "Existing", position: 0),
])
},
putGroups: { names in
await state.recordGroupPut(names)
return OpenClawChatSessionGroupsMutationResponse(
ok: true,
groups: names.enumerated().map {
OpenClawChatSessionGroup(name: $0.element, position: $0.offset)
},
updatedSessions: nil)
},
renameGroup: { _, _ in
OpenClawChatSessionGroupsMutationResponse(ok: true, groups: [], updatedSessions: nil)
},
deleteGroup: { _ in
OpenClawChatSessionGroupsMutationResponse(ok: true, groups: [], updatedSessions: nil)
})
}
func acquireNewSessionRouteLease() async -> OpenClawChatNewSessionRouteLease? {
let state = self.state
let createGate = self.createGate
let createIsUnsupported = self.createIsUnsupported
return OpenClawChatNewSessionRouteLease(
listAgents: {
OpenClawChatAgentsListResponse(
defaultId: "worker",
agents: [OpenClawChatAgentChoice(id: "worker", workspaceGit: true)])
},
createSession: { key, _, agentID, parentKey, _, _ in
let index = await state.recordCreate(key: key, agentID: agentID, parentKey: parentKey)
if index == 0 {
await createGate?.suspendCompletion()
}
if createIsUnsupported {
throw NSError(
domain: "OpenClawChatTransport",
code: 0,
userInfo: [NSLocalizedDescriptionKey: "sessions.create not supported by this transport"])
}
return OpenClawChatCreateSessionResponse(ok: true, key: key, sessionId: nil)
})
}
func resetSession(sessionKey: String) async throws {
await self.state.recordReset(sessionKey)
await self.resetGate?.suspendCompletion()
}
func listSessions(
limit _: Int?,
search _: String?,
archived _: Bool) async throws -> OpenClawChatSessionsListResponse
{
await self.state.recordSessionListRequest()
throw NSError(
domain: "OpenClawChatTransport",
code: 0,
userInfo: [NSLocalizedDescriptionKey: "sessions.list not supported by this transport"])
}
func deleteSession(key: String) async throws {
await self.state.recordDelete(key)
}
func requestHealth(timeoutMs _: Int) async throws -> Bool {
true
}
func events() -> AsyncStream<OpenClawChatTransportEvent> {
AsyncStream { $0.finish() }
}
func forkedParentKeys() async -> [String] {
await self.state.forkedParentKeys
}
func stableForkFlags() async -> [Bool] {
await self.state.forkedFromLastCompleted
}
func rewoundMessages() async -> [(sessionKey: String, entryID: String)] {
await self.state.rewoundMessages
}
func forkedMessages() async -> [(sessionKey: String, entryID: String)] {
await self.state.forkedMessages
}
func branchListSessionKeys() async -> [String] {
await self.state.branchListSessionKeys
}
func switchedBranches() async -> [(sessionKey: String, leafEntryID: String)] {
await self.state.switchedBranches
}
func sentSessionKeys() async -> [String] {
await self.state.sentSessionKeys
}
func historySessionKeys() async -> [String] {
await self.state.historySessionKeys
}
func patchedKeys() async -> [String] {
await self.state.patchedKeys
}
func patchIdentities() async -> [(key: String, expectedSessionID: String?)] {
await self.state.patchIdentities
}
func groupPuts() async -> [[String]] {
await self.state.groupPuts
}
func deletedKeys() async -> [String] {
await self.state.deletedKeys
}
func createdAgentIDs() async -> [String?] {
await self.state.createdAgentIDs
}
func createdKeys() async -> [String] {
await self.state.createdKeys
}
func createdParentKeys() async -> [String?] {
await self.state.createdParentKeys
}
func resetSessionKeys() async -> [String] {
await self.state.resetSessionKeys
}
func sessionListRequestCount() async -> Int {
await self.state.sessionListRequestCount
}
}
private actor BatchMutationProbe {
private(set) var active = 0
private(set) var maximumActive = 0
private(set) var visited: [String] = []
func begin(_ key: String) {
self.active += 1
self.maximumActive = max(self.maximumActive, self.active)
self.visited.append(key)
}
func end() {
self.active -= 1
}
}
private struct BatchTestError: LocalizedError {
var errorDescription: String? {
"rejected"
}
}
@MainActor
struct ChatViewModelSessionActionTests {
@Test func `batch mutations continue after per-row failure with bounded fan-out`() async {
let probe = BatchMutationProbe()
let result = await ChatSessionBatchMutationRunner.run(
keys: ["a", "b", "c", "d", "e"],
maxConcurrent: 2)
{ key in
await probe.begin(key)
try? await Task.sleep(for: .milliseconds(10))
await probe.end()
if key == "c" { throw BatchTestError() }
}
#expect(result.succeededKeys == ["a", "b", "d", "e"])
#expect(result.errorsByKey == ["c": "rejected"])
#expect(await probe.maximumActive == 2)
#expect(await Set(probe.visited) == Set(["a", "b", "c", "d", "e"]))
}
@Test func `batch mutation includes selected server-search entry outside live roster`() async {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let searchResult = self.entry(key: "older-search-result")
let result = await viewModel.performSessionBatch(sessions: [searchResult], action: .pin)
#expect(result.succeededKeys == ["older-search-result"])
#expect(result.errorsByKey.isEmpty)
#expect(await transport.patchedKeys() == ["older-search-result"])
}
@Test func `batch archive carries each observed identity and rejects missing identity`() async {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let result = await viewModel.performSessionBatch(
sessions: [
self.entry(key: "durable", sessionId: "session-durable"),
self.entry(key: "missing"),
],
action: .archive)
#expect(result.succeededKeys == ["durable"])
#expect(result.errorsByKey["missing"] != nil)
#expect(await transport.patchIdentities().map(\.key) == ["durable"])
#expect(await transport.patchIdentities().map(\.expectedSessionID) == ["session-durable"])
}
@Test func `group create lists and replaces through one captured route lease`() async throws {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let lease = try await viewModel.sessionGroupsRouteLease()
let groups = try await viewModel.createSessionGroup(named: "New", using: lease)
#expect(groups.map(\.name) == ["Existing", "New"])
#expect(await transport.groupPuts() == [["Existing", "New"]])
// Catalog-only mutations must bump the revision so sidebar group fetches
// keyed on it refetch instead of staying stale until reconnect.
#expect(viewModel.sessionGroupsRevision == 1)
}
@Test func `remote group mutations bump the catalog revision`() async {
let transport = SessionActionTransport()
let viewModel = await MainActor.run {
OpenClawChatViewModel(sessionKey: "main", transport: transport)
}
await MainActor.run {
viewModel.handleTransportEvent(.sessionsChanged(.init(sessionKey: nil, reason: "groups")))
viewModel.handleTransportEvent(.sessionsChanged(.init(sessionKey: nil, reason: "unrelated")))
}
#expect(await MainActor.run { viewModel.sessionGroupsRevision } == 1)
}
@Test func `batch delete rejects current session while attachment owner is pinned`() async {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "worker", transport: transport)
viewModel.attachments = [OpenClawPendingAttachment(
url: nil,
data: Data([1]),
fileName: "draft.png",
mimeType: "image/png",
preview: nil)]
let result = await viewModel.performSessionBatch(
sessions: [self.entry(key: "worker")],
action: .delete)
#expect(result.succeededKeys.isEmpty)
#expect(result.errorsByKey["worker"] != nil)
#expect(await transport.deletedKeys().isEmpty)
}
@Test func `new session options list and create through one captured route lease`() async throws {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let lease = try await viewModel.newSessionRouteLease()
let response = try await lease.listAgents()
await viewModel.startNewSession(
agentID: response?.defaultId ?? "",
worktree: true,
worktreeBaseRef: "main",
using: lease)
#expect(await transport.createdAgentIDs() == ["worker"])
}
@Test func `new session creation rejects a duplicate while its gateway mutation is in flight`() async throws {
let createGate = SessionActionCompletionGate()
let transport = SessionActionTransport(createGate: createGate)
var observedSelections: [String] = []
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
onSessionChanged: { observedSelections.append($0) })
let lease = try await viewModel.newSessionRouteLease()
let firstCreate = Task {
await viewModel.startNewSession(agentID: "", worktree: false, worktreeBaseRef: nil, using: lease)
}
guard await self.waitForForkStart(createGate) else {
createGate.release()
firstCreate.cancel()
Issue.record("timed out waiting for session creation start signal")
return
}
let duplicateCreated = await viewModel.startNewSession(
agentID: "",
worktree: false,
worktreeBaseRef: nil,
using: lease)
#expect(duplicateCreated == false)
#expect(await transport.createdKeys().count == 1)
createGate.release()
#expect(await firstCreate.value)
#expect(await viewModel.sessionKey == (transport.createdKeys()).first)
#expect(observedSelections == [viewModel.sessionKey])
}
@Test(arguments: [false, true])
func `stale new session completion cannot replace or reset newer navigation`(
createIsUnsupported: Bool) async throws
{
let createGate = SessionActionCompletionGate()
let transport = SessionActionTransport(
createGate: createGate,
createIsUnsupported: createIsUnsupported)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let lease = try await viewModel.newSessionRouteLease()
let create = Task {
await viewModel.startNewSession(agentID: "", worktree: false, worktreeBaseRef: nil, using: lease)
}
guard await self.waitForForkStart(createGate) else {
createGate.release()
create.cancel()
Issue.record("timed out waiting for session creation start signal")
return
}
viewModel.switchSession(to: "other")
let newerSession = viewModel.currentSessionSnapshot()
let newerHistoryGeneration = viewModel.lastIssuedHistoryRequestID
createGate.release()
let created = await create.value
#expect(created == false)
#expect(viewModel.currentSessionSnapshot() == newerSession)
#expect(viewModel.lastIssuedHistoryRequestID == newerHistoryGeneration)
#expect(viewModel.errorText == nil)
#expect(await transport.createdKeys().count == 1)
#expect(await transport.resetSessionKeys().isEmpty)
}
@Test(arguments: [false, true])
func `new session completion preserves attachment ownership acquired during creation`(
createIsUnsupported: Bool) async throws
{
let createGate = SessionActionCompletionGate()
let transport = SessionActionTransport(
createGate: createGate,
createIsUnsupported: createIsUnsupported)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let lease = try await viewModel.newSessionRouteLease()
let create = Task {
await viewModel.startNewSession(agentID: "", worktree: false, worktreeBaseRef: nil, using: lease)
}
#expect(await self.waitForForkStart(createGate))
viewModel.beginAttachmentStaging()
defer { viewModel.endAttachmentStaging() }
createGate.release()
#expect(await create.value == false)
#expect(viewModel.sessionKey == "main" && viewModel.isAttachmentOwnerPinned)
#expect(viewModel.errorText ==
"Remove attachments or wait for delivery to resolve before starting a new chat.")
#expect(await transport.createdKeys().count == 1)
#expect(await transport.resetSessionKeys().isEmpty)
if !createIsUnsupported {
try await waitUntil("committed session is discoverable after attachment ownership changes") {
await transport.sessionListRequestCount() == 1
}
}
}
@Test func `navigation during unsupported new session reset preserves the newer selection`() async throws {
let resetGate = SessionActionCompletionGate()
let transport = SessionActionTransport(resetGate: resetGate, createIsUnsupported: true)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let lease = try await viewModel.newSessionRouteLease()
let create = Task {
await viewModel.startNewSession(agentID: "", worktree: false, worktreeBaseRef: nil, using: lease)
}
guard await self.waitForForkStart(resetGate) else {
resetGate.release()
create.cancel()
Issue.record("timed out waiting for fallback reset start signal")
return
}
viewModel.switchSession(to: "other")
let newerSession = viewModel.currentSessionSnapshot()
let newerHistoryGeneration = viewModel.lastIssuedHistoryRequestID
resetGate.release()
let created = await create.value
#expect(created == false)
#expect(viewModel.currentSessionSnapshot() == newerSession)
#expect(viewModel.lastIssuedHistoryRequestID == newerHistoryGeneration)
#expect(viewModel.errorText == nil)
#expect(await transport.resetSessionKeys() == ["main"])
}
@Test func `unsupported create with advanced options fails without resetting`() async {
// SessionActionTransport relies on the protocol's default createSession,
// which throws the canonical unsupported error; the worktree request must
// surface it instead of taking the plain-new reset fallback.
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let created = await viewModel.startNewSession(worktree: true)
#expect(created == false)
#expect(viewModel.sessionKey == "main")
#expect(viewModel.errorText != nil)
}
@Test func `ambiguous agent ownership omits the parent session`() async throws {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
// Roster entries must not decide the current agent: "main" is unscoped and
// no active agent is set, so agent selection crosses an ownership boundary.
viewModel.sessions = [self.entry(key: "agent:worker:main")]
let lease = try await viewModel.newSessionRouteLease()
await viewModel.startNewSession(
agentID: "worker",
worktree: false,
worktreeBaseRef: nil,
using: lease)
#expect(await transport.createdParentKeys() == [nil])
}
@Test func `active agent identity preserves parent for an unscoped current key`() async throws {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
activeAgentId: "worker")
let lease = try await viewModel.newSessionRouteLease()
await viewModel.startNewSession(
agentID: "worker",
worktree: false,
worktreeBaseRef: nil,
using: lease)
#expect(await transport.createdParentKeys() == ["main"])
}
@Test func `rewind seeds editor and refreshes history`() async {
let imageData = Data("rewound image".utf8)
let transport = SessionActionTransport(
rewindEditorText: "edit this turn",
rewindEditorAttachments: [
OpenClawChatEditorAttachment(
mimeType: "image/png",
data: imageData.base64EncodedString()),
OpenClawChatEditorAttachment(mimeType: "image/png", data: "%%%"),
])
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.input = "old draft"
viewModel.attachments = [OpenClawPendingAttachment(
url: nil,
data: Data("old image".utf8),
fileName: "old.png",
mimeType: "image/png",
preview: nil)]
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
#expect(viewModel.input == "edit this turn")
#expect(viewModel.attachments.count == 1)
#expect(viewModel.attachments.first?.data == imageData)
#expect(viewModel.attachments.first?.mimeType == "image/png")
#expect(await transport.rewoundMessages().map { [$0.sessionKey, $0.entryID] } == [["main", "message-42"]])
#expect(await transport.historySessionKeys() == ["main"])
}
@Test func `rewind does not dispatch while busy`() async {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.isSending = true
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
#expect(await transport.rewoundMessages().isEmpty)
#expect(await transport.historySessionKeys().isEmpty)
}
@Test func `rewind waits for current session outbox confirmation`() async throws {
let directory = try makeSessionActionOutboxDirectory()
defer { try? FileManager.default.removeItem(at: directory) }
let databases = try OpenClawClientDatabases(directoryURL: directory)
let store = databases.store(gatewayID: "gw-test")
let scope = OpenClawChatOutboxScope(sessionKey: "main", agentID: nil)
#expect(await store.updateLastActiveLeafEntryID("leaf-active", expectedEpoch: 0, for: scope))
#expect(await store.enqueueCommand(sessionActionOutboxCommand(
id: "rewind-pending",
text: "wait before rewind")))
let transport = SessionActionTransport(branches: self.branches())
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
outbox: store)
viewModel.restoreOutboxMessages(session: viewModel.currentSessionSnapshot())
#expect(await self.waitForOutboxRestore(viewModel))
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
#expect(viewModel.canPerformMessageSessionAction == false)
#expect(await transport.rewoundMessages().isEmpty)
await viewModel.confirmOutboxCommandsNow(in: [self.confirmingMessage(commandID: "rewind-pending")])
#expect(viewModel.canPerformMessageSessionAction)
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
#expect(await transport.rewoundMessages().map { [$0.sessionKey, $0.entryID] } == [
["main", "message-42"],
])
}
@Test func `fork at message waits for current session outbox confirmation`() async throws {
let directory = try makeSessionActionOutboxDirectory()
defer { try? FileManager.default.removeItem(at: directory) }
let store = try OpenClawClientDatabases(directoryURL: directory).store(gatewayID: "gw-test")
#expect(await store.enqueueCommand(sessionActionOutboxCommand(
id: "fork-pending",
text: "wait before fork")))
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
outbox: store)
viewModel.restoreOutboxMessages(session: viewModel.currentSessionSnapshot())
#expect(await self.waitForOutboxRestore(viewModel))
await viewModel.forkAtMessage(self.userMessage(entryID: "message-42"))
#expect(viewModel.canPerformMessageSessionAction == false)
#expect(await transport.forkedMessages().isEmpty)
await viewModel.confirmOutboxCommandsNow(in: [self.confirmingMessage(commandID: "fork-pending")])
#expect(viewModel.canPerformMessageSessionAction)
await viewModel.forkAtMessage(self.userMessage(entryID: "message-42"))
#expect(await transport.forkedMessages().map { [$0.sessionKey, $0.entryID] } == [
["main", "message-42"],
])
}
@Test func `rewind bumps branch epoch and parks a racing enqueue`() async throws {
let directory = try makeSessionActionOutboxDirectory()
defer { try? FileManager.default.removeItem(at: directory) }
let databases = try OpenClawClientDatabases(directoryURL: directory)
let store = databases.store(gatewayID: "gw-test")
let siblingStore = databases.store(gatewayID: "gw-test")
let scope = OpenClawChatOutboxScope(sessionKey: "main", agentID: nil)
#expect(await store.updateLastActiveLeafEntryID("leaf-active", expectedEpoch: 0, for: scope))
let rewindGate = SessionActionCompletionGate()
let transport = SessionActionTransport(
rewindGate: rewindGate,
branches: self.branches(activeLeafEntryID: "leaf-new"))
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
outbox: store)
viewModel.hasRestoredOutboxMessages = true
let rewind = Task {
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
}
guard await self.waitForForkStart(rewindGate) else {
rewindGate.release()
rewind.cancel()
Issue.record("timed out waiting for rewind start signal")
return
}
#expect(await siblingStore.enqueueCommand(sessionActionOutboxCommand(
id: "racing-rewind",
text: "belongs to the old transcript")))
#expect(await siblingStore.claimNextCommand() == nil)
rewindGate.release()
await rewind.value
let state = try #require(await store.branchState(for: scope))
#expect(state.epoch == 1)
#expect(state.lastActiveLeafEntryID == "leaf-new")
#expect(state.switchPendingSince == nil)
let racedCommand = try #require(await store.loadCommands().first)
#expect(racedCommand.id == "racing-rewind")
#expect(racedCommand.status == .failed)
#expect(OpenClawChatSQLiteTranscriptCache.outboxDisplayError(racedCommand.lastError) ==
"Session branch changed; review and retry this message.")
}
@Test func `rewind list failure clears lease and later reconcile delivers`() async throws {
let directory = try makeSessionActionOutboxDirectory()
defer { try? FileManager.default.removeItem(at: directory) }
let databases = try OpenClawClientDatabases(directoryURL: directory)
let store = databases.store(gatewayID: "gw-test")
let siblingStore = databases.store(gatewayID: "gw-test")
let scope = OpenClawChatOutboxScope(sessionKey: "main", agentID: nil)
#expect(await store.updateLastActiveLeafEntryID("leaf-active", expectedEpoch: 0, for: scope))
let transport = SessionActionTransport(
branches: self.branches(),
branchListFailureIndices: [0],
sendSucceeds: true)
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
outbox: store)
viewModel.hasRestoredOutboxMessages = true
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
#expect(await store.branchState(for: scope)?.switchPendingSince == nil)
#expect(await store.branchState(for: scope)?.needsReconciliation == true)
#expect(viewModel.reconciledOutboxBranchScopes.contains(scope) == false)
#expect(await store.enqueueCommand(sessionActionOutboxCommand(
id: "after-rewind-list-failure",
text: "send after reconcile")))
#expect(await siblingStore.claimNextCommand() == nil)
viewModel.healthOK = true
viewModel.readySessionMetadataGeneration = viewModel.sessionMetadataGeneration
viewModel.flushOutboxIfNeeded()
#expect(await self.waitForSend(transport))
#expect(await transport.branchListSessionKeys().suffix(2) == ["main", "main"])
#expect(await transport.sentSessionKeys() == ["main"])
#expect(await store.loadCommands().map(\.status) == [.awaitingConfirmation])
}
@Test func `branch refresh populates state`() async {
let branches = self.branches()
let transport = SessionActionTransport(branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
await viewModel.refreshSessionBranches()
#expect(viewModel.sessionBranches == branches)
#expect(viewModel.isLoadingSessionBranches == false)
#expect(await transport.branchListSessionKeys() == ["main"])
}
@Test func `opening branch menu refreshes conversation stale metadata once`() async {
let staleBranches = self.branches()
let freshBranches = self.branches(activeLeafEntryID: "leaf-new")
let transport = SessionActionTransport(branches: freshBranches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = staleBranches
await viewModel.refreshSessionBranchesForMenuPresentation()
#expect(viewModel.sessionBranches == freshBranches)
#expect(await transport.branchListSessionKeys() == ["main"])
}
@Test func `branch message count uses localized singular and plural forms`() {
#expect(OpenClawChatComposer.branchMessageCount(1) == "1 message")
#expect(OpenClawChatComposer.branchMessageCount(2) == "2 messages")
}
@Test func `branch refresh failure preserves cached branches`() async {
let branches = self.branches()
let transport = SessionActionTransport(branchListFailureIndices: [0])
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
await viewModel.refreshSessionBranches()
#expect(viewModel.sessionBranches == branches)
#expect(viewModel.isLoadingSessionBranches == false)
#expect(await transport.branchListSessionKeys() == ["main"])
}
@Test func `read only branch refresh failure preserves replay eligibility`() async throws {
let directory = try makeSessionActionOutboxDirectory()
defer { try? FileManager.default.removeItem(at: directory) }
let store = try OpenClawClientDatabases(directoryURL: directory).store(gatewayID: "gw-test")
let scope = OpenClawChatOutboxScope(sessionKey: "main", agentID: nil)
let transport = SessionActionTransport(branchListFailureIndices: [0])
let viewModel = OpenClawChatViewModel(
sessionKey: "main",
transport: transport,
outbox: store)
viewModel.reconciledOutboxBranchScopes.insert(scope)
await viewModel.refreshSessionBranchesForMenuPresentation()
#expect(viewModel.reconciledOutboxBranchScopes.contains(scope))
#expect(await store.branchState(for: scope)?.switchPendingSince == nil)
}
@Test func `newer branch refresh supersedes an older response`() async {
let firstGate = SessionActionCompletionGate()
let oldBranches = self.branches()
let newBranches = self.branches(activeLeafEntryID: "leaf-new")
let transport = SessionActionTransport(
branchListGates: [firstGate],
branchListResponses: [oldBranches, newBranches])
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let firstRefresh = Task { await viewModel.refreshSessionBranches() }
guard await self.waitForForkStart(firstGate) else {
firstGate.release()
firstRefresh.cancel()
Issue.record("timed out waiting for branch list start signal")
return
}
await viewModel.refreshSessionBranches()
#expect(viewModel.sessionBranches == newBranches)
firstGate.release()
await firstRefresh.value
#expect(viewModel.sessionBranches == newBranches)
#expect(viewModel.isLoadingSessionBranches == false)
#expect(await transport.branchListSessionKeys() == ["main", "main"])
}
@Test func `branch switch refreshes history and branch state`() async {
let branches = self.branches()
let transport = SessionActionTransport(branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
await viewModel.switchToBranch("leaf-new")
#expect(await transport.switchedBranches().map { [$0.sessionKey, $0.leafEntryID] } == [
["main", "leaf-new"],
])
#expect(await transport.historySessionKeys() == ["main"])
#expect(await transport.branchListSessionKeys() == ["main"])
#expect(viewModel.sessionBranches == branches)
}
@Test(arguments: [false, true])
func `branch change failure funnels through full session reload`(remoteEvent: Bool) async {
let historyReloadGate = SessionActionCompletionGate()
let branchesReloadGate = SessionActionCompletionGate()
let remoteConfirmationGate = SessionActionCompletionGate()
let staleBranches = self.branches()
let freshBranches = self.branches(activeLeafEntryID: "leaf-new")
let transport = SessionActionTransport(
branchListGates: remoteEvent
? [remoteConfirmationGate, branchesReloadGate]
: [branchesReloadGate],
branches: freshBranches,
historyGates: [2: historyReloadGate],
historyFailureIndices: [0, 1])
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = staleBranches
viewModel.messages = [self.userMessage(entryID: "pre-switch")]
if remoteEvent {
viewModel.handleTransportEvent(.sessionsChanged(.init(
sessionKey: "main",
reason: "branch-switch")))
_ = await self.waitForForkStart(remoteConfirmationGate)
remoteConfirmationGate.release()
} else {
await viewModel.switchToBranch("leaf-new")
}
let historyReloadStarted = await self.waitForForkStart(historyReloadGate)
let branchesReloadStarted = await self.waitForForkStart(branchesReloadGate)
#expect(historyReloadStarted)
#expect(branchesReloadStarted)
#expect(await transport.historySessionKeys() == ["main", "main", "main"])
#expect(await transport.branchListSessionKeys() == (remoteEvent ? ["main", "main"] : ["main"]))
#expect(viewModel.messages.isEmpty)
#expect(viewModel.sessionBranches.isEmpty)
#expect(viewModel.hasAppliedLiveHistory == false)
#expect(viewModel.isLoading)
historyReloadGate.release()
branchesReloadGate.release()
let reloaded = await self.waitForBranchReload(viewModel, branches: freshBranches)
#expect(reloaded)
#expect(viewModel.sessionBranches.first(where: \.active)?.leafEntryId == "leaf-new")
}
@Test func `branch switch does not dispatch while busy`() async {
let branches = self.branches()
let transport = SessionActionTransport(branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
viewModel.isSending = true
await viewModel.switchToBranch("leaf-new")
#expect(await transport.switchedBranches().isEmpty)
#expect(await transport.historySessionKeys().isEmpty)
#expect(await transport.branchListSessionKeys().isEmpty)
}
@Test func `branch switch does not overlap an in flight switch`() async {
let gate = SessionActionCompletionGate()
let branches = self.branches()
let transport = SessionActionTransport(branchSwitchGate: gate, branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
let firstSwitch = Task { await viewModel.switchToBranch("leaf-new") }
guard await self.waitForForkStart(gate) else {
gate.release()
firstSwitch.cancel()
Issue.record("timed out waiting for branch switch start signal")
return
}
await viewModel.switchToBranch("leaf-new")
#expect(await transport.switchedBranches().count == 1)
gate.release()
await firstSwitch.value
}
@Test func `branch switch blocks sends and rewinds until refresh completes`() async {
let gate = SessionActionCompletionGate()
let branches = self.branches()
let transport = SessionActionTransport(branchSwitchGate: gate, branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
viewModel.input = "new message"
let branchSwitch = Task { await viewModel.switchToBranch("leaf-new") }
guard await self.waitForForkStart(gate) else {
gate.release()
branchSwitch.cancel()
Issue.record("timed out waiting for branch switch start signal")
return
}
#expect(viewModel.hasBlockingRunActivity)
#expect(viewModel.canSend == false)
viewModel.send()
await viewModel.rewindToMessage(self.userMessage(entryID: "message-42"))
await viewModel.forkAtMessage(self.userMessage(entryID: "message-42"))
for _ in 0..<10 {
await Task.yield()
}
#expect(await transport.sentSessionKeys().isEmpty)
#expect(await transport.rewoundMessages().isEmpty)
#expect(await transport.forkedMessages().isEmpty)
gate.release()
await branchSwitch.value
#expect(viewModel.hasBlockingRunActivity == false)
#expect(viewModel.canSend)
}
@Test func `stale branch switch completion is ignored`() async {
let gate = SessionActionCompletionGate()
let branches = self.branches()
let transport = SessionActionTransport(branchSwitchGate: gate, branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
let branchSwitch = Task { await viewModel.switchToBranch("leaf-new") }
guard await self.waitForForkStart(gate) else {
gate.release()
branchSwitch.cancel()
Issue.record("timed out waiting for branch switch start signal")
return
}
viewModel.switchSession(to: "other")
gate.release()
await branchSwitch.value
#expect(viewModel.sessionKey == "other")
#expect(await transport.switchedBranches().map { [$0.sessionKey, $0.leafEntryID] } == [
["main", "leaf-new"],
])
#expect(await transport.historySessionKeys().contains("main") == false)
#expect(await transport.branchListSessionKeys().contains("main") == false)
}
@Test func `navigation releases branch switch gate before stale completion`() async {
let gate = SessionActionCompletionGate()
let branches = self.branches()
let transport = SessionActionTransport(branchSwitchGate: gate, branches: branches)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessionBranches = branches
let branchSwitch = Task { await viewModel.switchToBranch("leaf-new") }
guard await self.waitForForkStart(gate) else {
gate.release()
branchSwitch.cancel()
Issue.record("timed out waiting for branch switch start signal")
return
}
viewModel.switchSession(to: "other")
viewModel.input = "new session message"
#expect(viewModel.hasBlockingRunActivity == false)
#expect(viewModel.canSend)
gate.release()
await branchSwitch.value
#expect(viewModel.sessionKey == "other")
#expect(viewModel.hasBlockingRunActivity == false)
#expect(viewModel.canSend)
}
@Test func `fork at message switches and seeds editor`() async {
let imageData = Data("forked image".utf8)
let transport = SessionActionTransport(
forkAtMessageSessionKey: "agent:main:forked",
forkAtMessageEditorText: "continue here",
forkAtMessageEditorAttachments: [OpenClawChatEditorAttachment(
mimeType: "image/webp",
data: imageData.base64EncodedString())])
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
await viewModel.forkAtMessage(self.userMessage(entryID: "message-42"))
#expect(viewModel.sessionKey == "agent:main:forked")
#expect(viewModel.input == "continue here")
#expect(viewModel.attachments.count == 1)
#expect(viewModel.attachments.first?.data == imageData)
#expect(viewModel.attachments.first?.mimeType == "image/webp")
#expect(await transport.forkedMessages().map { [$0.sessionKey, $0.entryID] } == [["main", "message-42"]])
}
@Test func `fork at message completion does not override newer navigation`() async {
let forkGate = SessionActionCompletionGate()
let transport = SessionActionTransport(
forkAtMessageGate: forkGate,
forkAtMessageSessionKey: "agent:main:forked")
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let fork = Task { await viewModel.forkAtMessage(self.userMessage(entryID: "message-42")) }
guard await self.waitForForkStart(forkGate) else {
forkGate.release()
fork.cancel()
Issue.record("timed out waiting for fork start signal")
return
}
viewModel.switchSession(to: "other")
forkGate.release()
await fork.value
#expect(viewModel.sessionKey == "other")
#expect(viewModel.input.isEmpty)
#expect(await transport.forkedMessages().map { [$0.sessionKey, $0.entryID] } == [["main", "message-42"]])
}
@Test func `remote rewind refreshes current transcript only`() async throws {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.handleTransportEvent(.sessionsChanged(.init(sessionKey: "other", reason: "rewind")))
viewModel.handleTransportEvent(.sessionsChanged(.init(sessionKey: "main", reason: "rewind")))
try await waitUntil("remote rewind history request") {
await transport.historySessionKeys().isEmpty == false
}
#expect(await transport.historySessionKeys() == ["main"])
}
@Test func `remote branch switch refreshes current transcript and branches only`() async throws {
let transport = SessionActionTransport(branches: self.branches())
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.setReplyTarget(messageID: UUID(), text: "old branch", senderLabel: "User")
viewModel.input = "new message"
viewModel.handleTransportEvent(.sessionsChanged(.init(sessionKey: "other", reason: "branch-switch")))
#expect(viewModel.replyTarget != nil)
#expect(viewModel.canSend)
viewModel.handleTransportEvent(.sessionsChanged(.init(sessionKey: "main", reason: "branch-switch")))
#expect(viewModel.hasBlockingRunActivity)
#expect(viewModel.canSend == false)
try await waitUntil("remote branch switch branch list request") {
await transport.branchListSessionKeys().isEmpty == false
}
let unlocked = await self.waitForBranchSwitchActivityToClear(viewModel)
#expect(unlocked)
#expect(viewModel.replyTarget == nil)
#expect(await transport.historySessionKeys() == ["main"])
#expect(await transport.branchListSessionKeys() == ["main"])
}
@Test func `fork does not mutate gateway while session switching is blocked`() async {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.attachments = [OpenClawPendingAttachment(
url: nil,
data: Data([1]),
fileName: "draft.png",
mimeType: "image/png",
preview: nil)]
await viewModel.forkSession(key: "main")
let forkedKeys = await transport.forkedParentKeys()
#expect(forkedKeys.isEmpty)
#expect(viewModel.sessionKey == "main")
#expect(viewModel.errorText == String(
localized: "Remove attachments or wait for delivery to resolve before starting a new chat."))
}
@Test func `fork routes active sessions through the completed-message boundary`() async {
let transport = SessionActionTransport()
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
viewModel.sessions = [self.entry(key: "main", hasActiveRun: true)]
await viewModel.forkSession(key: "main")
#expect(await transport.stableForkFlags() == [true])
}
@Test func `boundary-aware fork remains compatible with legacy transports`() async throws {
let legacy = LegacyForkTransport()
let transport: any OpenClawChatTransport = legacy
let childKey = try await transport.forkSession(
parentKey: "main",
fromLastCompleted: true)
#expect(childKey == "legacy-child")
#expect(await legacy.state.parentKeys == ["main"])
}
@Test func `fork completion does not override newer navigation`() async {
let forkGate = SessionActionCompletionGate()
let transport = SessionActionTransport(forkGate: forkGate)
let viewModel = OpenClawChatViewModel(sessionKey: "main", transport: transport)
let fork = Task { await viewModel.forkSession(key: "main") }
guard await self.waitForForkStart(forkGate) else {
forkGate.release()
fork.cancel()
Issue.record("timed out waiting for fork start signal")
return
}
viewModel.switchSession(to: "other")
forkGate.release()
await fork.value
#expect(viewModel.sessionKey == "other")
#expect(await transport.forkedParentKeys() == ["main"])
}
private func waitForForkStart(
_ gate: SessionActionCompletionGate,
timeout: Duration = .seconds(15)) async -> Bool
{
// The stream controls ordering; this deadline only bounds a broken fake or call path.
await withTaskGroup(of: Bool.self) { group in
group.addTask { await gate.waitUntilStarted() }
group.addTask {
try? await Task.sleep(for: timeout)
return false
}
let started = await group.next() ?? false
group.cancelAll()
return started
}
}
private func waitForBranchSwitchActivityToClear(
_ viewModel: OpenClawChatViewModel,
timeout: Duration = .seconds(15)) async -> Bool
{
let clock = ContinuousClock()
let deadline = clock.now + timeout
while clock.now < deadline {
if viewModel.hasBlockingRunActivity == false {
return true
}
await Task.yield()
}
return false
}
private func waitForOutboxRestore(
_ viewModel: OpenClawChatViewModel,
timeout: Duration = .seconds(15)) async -> Bool
{
let clock = ContinuousClock()
let deadline = clock.now + timeout
while clock.now < deadline {
if viewModel.hasRestoredOutboxMessages,
viewModel.hasPendingOutboxCommandsForCurrentSession
{
return true
}
await Task.yield()
}
return false
}
private func waitForSend(
_ transport: SessionActionTransport,
timeout: Duration = .seconds(15)) async -> Bool
{
let clock = ContinuousClock()
let deadline = clock.now + timeout
while clock.now < deadline {
if await transport.sentSessionKeys().isEmpty == false {
return true
}
await Task.yield()
}
return false
}
private func waitForBranchReload(
_ viewModel: OpenClawChatViewModel,
branches: [OpenClawChatSessionBranch],
timeout: Duration = .seconds(15)) async -> Bool
{
let clock = ContinuousClock()
let deadline = clock.now + timeout
while clock.now < deadline {
if viewModel.sessionBranches == branches, !viewModel.isLoading {
return true
}
await Task.yield()
}
return false
}
private func userMessage(entryID: String) -> OpenClawChatMessage {
OpenClawChatMessage(
role: "user",
content: [],
timestamp: nil,
transcriptMessageID: entryID)
}
private func confirmingMessage(commandID: String) -> OpenClawChatMessage {
OpenClawChatMessage(
role: "user",
content: [],
timestamp: nil,
idempotencyKey: "\(commandID):user")
}
private func branches(activeLeafEntryID: String = "leaf-active") -> [OpenClawChatSessionBranch] {
[
OpenClawChatSessionBranch(
leafEntryId: "leaf-active",
headline: "Current path",
messageCount: 4,
updatedAt: "2026-07-19T12:00:00Z",
active: activeLeafEntryID == "leaf-active"),
OpenClawChatSessionBranch(
leafEntryId: "leaf-new",
headline: "Alternate path",
messageCount: 2,
updatedAt: nil,
active: activeLeafEntryID == "leaf-new"),
]
}
private func entry(
key: String,
sessionId: String? = nil,
hasActiveRun: Bool? = nil) -> OpenClawChatSessionEntry
{
OpenClawChatSessionEntry(
key: key,
kind: nil,
displayName: nil,
surface: nil,
subject: nil,
room: nil,
space: nil,
updatedAt: nil,
sessionId: sessionId,
systemSent: nil,
abortedLastRun: nil,
thinkingLevel: nil,
verboseLevel: nil,
inputTokens: nil,
outputTokens: nil,
totalTokens: nil,
modelProvider: nil,
model: nil,
contextTokens: nil,
hasActiveRun: hasActiveRun)
}
}
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