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import Foundation
import Sparkle
/// Simulates various update scenarios for testing the update UI.
///
/// The expected usage is by overriding the `checkForUpdates` function in AppDelegate and
/// calling one of these instead. This will allow us to test the update flows without having to use
/// real updates.
enum UpdateSimulator {
/// Complete successful update flow: checking → available → download → extract → ready → install → idle
case happyPath
/// No updates available: checking (2s) → "No Updates Available" (3s) → idle
case notFound
/// Error during check: checking (2s) → error with retry callback
case error
/// Slower download for testing progress UI: checking → available → download (20 steps, ~10s) → extract → install
case slowDownload
/// Initial permission request flow: shows permission dialog → proceeds with happy path if accepted
case permissionRequest
/// User cancels during download: checking → available → download (5 steps) → cancels → idle
case cancelDuringDownload
/// User cancels while checking: checking (1s) → cancels → idle
case cancelDuringChecking
func simulate(with viewModel: UpdateViewModel) {
switch self {
case .happyPath:
simulateHappyPath(viewModel)
case .notFound:
simulateNotFound(viewModel)
case .error:
simulateError(viewModel)
case .slowDownload:
simulateSlowDownload(viewModel)
case .permissionRequest:
simulatePermissionRequest(viewModel)
case .cancelDuringDownload:
simulateCancelDuringDownload(viewModel)
case .cancelDuringChecking:
simulateCancelDuringChecking(viewModel)
}
}
private func simulateHappyPath(_ viewModel: UpdateViewModel) {
viewModel.state = .checking(.init(cancel: {
viewModel.state = .idle
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
viewModel.state = .updateAvailable(.init(
appcastItem: SUAppcastItem.empty(),
reply: { choice in
if choice == .install {
simulateDownload(viewModel)
} else {
viewModel.state = .idle
}
}
))
}
}
private func simulateNotFound(_ viewModel: UpdateViewModel) {
viewModel.state = .checking(.init(cancel: {
viewModel.state = .idle
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
viewModel.state = .notFound(.init(acknowledgement: {
// Acknowledgement called when dismissed
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 3.0) {
viewModel.state = .idle
}
}
}
private func simulateError(_ viewModel: UpdateViewModel) {
viewModel.state = .checking(.init(cancel: {
viewModel.state = .idle
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
viewModel.state = .error(.init(
error: NSError(domain: "UpdateError", code: 1, userInfo: [
NSLocalizedDescriptionKey: "Failed to check for updates"
]),
retry: {
simulateHappyPath(viewModel)
},
dismiss: {
viewModel.state = .idle
}
))
}
}
private func simulateSlowDownload(_ viewModel: UpdateViewModel) {
viewModel.state = .checking(.init(cancel: {
viewModel.state = .idle
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
viewModel.state = .updateAvailable(.init(
appcastItem: SUAppcastItem.empty(),
reply: { choice in
if choice == .install {
simulateSlowDownloadProgress(viewModel)
} else {
viewModel.state = .idle
}
}
))
}
}
private func simulateSlowDownloadProgress(_ viewModel: UpdateViewModel) {
let download = UpdateState.Downloading(
cancel: {
viewModel.state = .idle
},
expectedLength: nil,
progress: 0
)
viewModel.state = .downloading(download)
for i in 1...20 {
DispatchQueue.main.asyncAfter(deadline: .now() + Double(i) * 0.5) {
let updatedDownload = UpdateState.Downloading(
cancel: download.cancel,
expectedLength: 2000,
progress: UInt64(i * 100)
)
viewModel.state = .downloading(updatedDownload)
if i == 20 {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
simulateExtract(viewModel)
}
}
}
}
}
private func simulatePermissionRequest(_ viewModel: UpdateViewModel) {
let request = SPUUpdatePermissionRequest(systemProfile: [])
viewModel.state = .permissionRequest(.init(
request: request,
reply: { response in
if response.automaticUpdateChecks {
simulateHappyPath(viewModel)
} else {
viewModel.state = .idle
}
}
))
}
private func simulateCancelDuringDownload(_ viewModel: UpdateViewModel) {
viewModel.state = .checking(.init(cancel: {
viewModel.state = .idle
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
viewModel.state = .updateAvailable(.init(
appcastItem: SUAppcastItem.empty(),
reply: { choice in
if choice == .install {
simulateDownloadThenCancel(viewModel)
} else {
viewModel.state = .idle
}
}
))
}
}
private func simulateDownloadThenCancel(_ viewModel: UpdateViewModel) {
let download = UpdateState.Downloading(
cancel: {
viewModel.state = .idle
},
expectedLength: nil,
progress: 0
)
viewModel.state = .downloading(download)
for i in 1...5 {
DispatchQueue.main.asyncAfter(deadline: .now() + Double(i) * 0.3) {
let updatedDownload = UpdateState.Downloading(
cancel: download.cancel,
expectedLength: 1000,
progress: UInt64(i * 100)
)
viewModel.state = .downloading(updatedDownload)
if i == 5 {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
viewModel.state = .idle
}
}
}
}
}
private func simulateCancelDuringChecking(_ viewModel: UpdateViewModel) {
viewModel.state = .checking(.init(cancel: {
viewModel.state = .idle
}))
DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
viewModel.state = .idle
}
}
private func simulateDownload(_ viewModel: UpdateViewModel) {
let download = UpdateState.Downloading(
cancel: {
viewModel.state = .idle
},
expectedLength: nil,
progress: 0
)
viewModel.state = .downloading(download)
for i in 1...10 {
DispatchQueue.main.asyncAfter(deadline: .now() + Double(i) * 0.3) {
let updatedDownload = UpdateState.Downloading(
cancel: download.cancel,
expectedLength: 1000,
progress: UInt64(i * 100)
)
viewModel.state = .downloading(updatedDownload)
if i == 10 {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
simulateExtract(viewModel)
}
}
}
}
}
private func simulateExtract(_ viewModel: UpdateViewModel) {
viewModel.state = .extracting(.init(progress: 0.0))
for j in 1...5 {
DispatchQueue.main.asyncAfter(deadline: .now() + Double(j) * 0.3) {
viewModel.state = .extracting(.init(progress: Double(j) / 5.0))
if j == 5 {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
viewModel.state = .readyToInstall(.init(
reply: { choice in
if choice == .install {
viewModel.state = .installing
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) {
viewModel.state = .idle
}
} else {
viewModel.state = .idle
}
}
))
}
}
}
}
}
}
|
