Implemented the resumed interrupted recordings and allowed processing discards on the RecordingViewModel view model in the Recording package target.

This commit is contained in:
2026-07-05 16:16:53 +02:00
parent 8576d6bac6
commit c2ac476257
14 changed files with 563 additions and 309 deletions
@@ -2,7 +2,7 @@ import Foundation
/// A transcription of a processed recording.
public struct Transcription: Equatable, Identifiable, Sendable {
// MARK: Properties
/// The unique identifier of the transcription.
@@ -47,7 +47,9 @@ public extension Capturing {
// MARK: - Events
/// An event emitted by a ``Capturing`` service outside its method calls.
public enum CapturingEvent: Sendable {
public enum CapturingEvent: Equatable, Sendable {
/// The system interrupted the ongoing capture, pausing it.
case interrupted
/// The system ended the interruption of the capture, hinting whether the capture may resume right away.
case interruptionEnded(shouldResume: Bool)
}
@@ -36,6 +36,9 @@ public protocol Preinstalling: Sendable {
// MARK: - Events
/// An event emitted by a ``Preinstalling`` service while preinstalling speech model assets.
///
/// Every case carries the locale the preinstallation was requested for not its supported equivalent so a host can match the
/// event against the locale it passed to ``Preinstalling/preinstall(for:)``.
public enum PreinstallingEvent: Sendable {
/// The download of the locale's speech model assets was cancelled before it finished.
case cancelled(Locale)
@@ -74,18 +74,19 @@ public final class AssetPreinstalling: Preinstalling {
}
/// Preinstalls the speech model assets for the supported equivalent of the given locale, emitting the started, cancelled, and
/// failed downloads through ``events`` a download that finishes, or assets that are already installed, emit nothing.
/// failed downloads through ``events`` a download that finishes, or assets that are already installed, emit nothing. The
/// emitted events carry the given locale, not its supported equivalent, so a caller can match them against its requests.
///
/// - Parameter locale: The locale to preinstall the speech model assets for.
public func preinstall(
for locale: Locale
) async {
guard let locale = await supportedLocale(equivalentTo: locale) else {
guard let supported = await supportedLocale(equivalentTo: locale) else {
return
}
do {
try await install(for: locale) { [continuation] in
try await install(for: supported) { [continuation] in
continuation.yield(.started(locale))
}
} catch {
@@ -94,7 +95,7 @@ public final class AssetPreinstalling: Preinstalling {
} else {
continuation.yield(.failed(locale))
logger.error("The speech model assets for the \"\(locale.identifier, privacy: .public)\" locale failed to preinstall: \(String(describing: error), privacy: .public)")
logger.error("The speech model assets for the \"\(supported.identifier, privacy: .public)\" locale failed to preinstall: \(String(describing: error), privacy: .public)")
}
}
}
@@ -5,7 +5,8 @@ import AVFoundation
/// The service records into a temporary `.m4a` file through an `AVAudioRecorder`, and returns the file's location when the recording stops.
/// The user's permission to record is requested before a recording starts and, on the platforms that require it, the shared audio session is
/// configured for recording while the capture is in progress. When the system interrupts the session while a recording is in progress
/// because of a phone call or Siri, for example the service emits ``CapturingEvent/interrupted`` through ``events``.
/// because of a phone call or Siri, for example the service emits ``CapturingEvent/interrupted`` through ``events``, followed by
/// ``CapturingEvent/interruptionEnded(shouldResume:)`` once the interruption is over.
@MainActor
public final class AudioCapturing: Capturing {
@@ -137,7 +138,7 @@ public final class AudioCapturing: Capturing {
self.recorder = nil
#if os(iOS) || os(visionOS)
try? AVAudioSession.sharedInstance().setActive(false)
try? AVAudioSession.sharedInstance().setActive(false)
#endif
return Constant.File.url
@@ -146,31 +147,60 @@ public final class AudioCapturing: Capturing {
}
#if os(iOS) || os(visionOS)
// MARK: - Helpers
// MARK: - Helpers
private extension AudioCapturing {
private extension AudioCapturing {
/// Handles an interruption notification of the audio session, emitting ``CapturingEvent/interrupted`` through ``events``
/// when the system began interrupting an ongoing recording. The end of an interruption is deliberately ignored: the capture is
/// never resumed without the user asking for it.
///
/// - Parameter notification: The interruption notification posted by the audio session.
func handleInterruption(
_ notification: Notification
) {
guard
recorder != nil,
let typeValue = notification.userInfo?[AVAudioSessionInterruptionTypeKey] as? UInt,
AVAudioSession.InterruptionType(rawValue: typeValue) == .began
else {
return
/// Handles an interruption notification of the audio session while a recording exists, emitting the event the notification
/// describes through ``events``: the beginning of an interruption which pauses the capture emits
/// ``CapturingEvent/interrupted``, and its end emits ``CapturingEvent/interruptionEnded(shouldResume:)`` with the
/// system's hint on whether the capture may resume right away.
///
/// - Parameter notification: The interruption notification posted by the audio session.
func handleInterruption(
_ notification: Notification
) {
guard
recorder != nil,
let event = CapturingEvent(interruption: notification.userInfo)
else {
return
}
continuation.yield(event)
}
continuation.yield(.interrupted)
}
#endif
// MARK: - CapturingEvent+Interruptions
extension CapturingEvent {
/// Creates the event described by the user info of an audio session interruption notification, or `nil` when the user info
/// describes no known interruption.
///
/// - Parameter userInfo: The user info dictionary of the interruption notification.
init?(
interruption userInfo: [AnyHashable: Any]?
) {
guard let typeValue = userInfo?[Constant.Interruption.keyType] as? UInt else {
return nil
}
switch typeValue {
case Constant.Interruption.typeBegan:
self = .interrupted
case Constant.Interruption.typeEnded:
let optionsValue = userInfo?[Constant.Interruption.keyOptions] as? UInt ?? 0
self = .interruptionEnded(shouldResume: optionsValue & Constant.Interruption.optionShouldResume != 0)
default:
return nil
}
}
}
#endif
// MARK: - Constants
@@ -193,4 +223,32 @@ private enum Constant {
/// The location of the temporary file the audio is captured into.
static let url = FileManager.default.temporaryDirectory.appending(path: "recording.m4a")
}
/// The interruption constants, matching AVFoundation's audio session interruption keys and values mirrored as literals on
/// the platforms without an audio session, so the interruption parsing stays compilable, and therefore testable, everywhere.
enum Interruption {
#if os(iOS) || os(visionOS)
/// The user info key of the interruption options.
static let keyOptions = AVAudioSessionInterruptionOptionKey
/// The user info key of the interruption type.
static let keyType = AVAudioSessionInterruptionTypeKey
/// The raw value of the interruption option hinting the capture may resume.
static let optionShouldResume = AVAudioSession.InterruptionOptions.shouldResume.rawValue
/// The raw value of the beginning of an interruption.
static let typeBegan = AVAudioSession.InterruptionType.began.rawValue
/// The raw value of the end of an interruption.
static let typeEnded = AVAudioSession.InterruptionType.ended.rawValue
#else
/// The user info key of the interruption options.
static let keyOptions = "AVAudioSessionInterruptionOptionKey"
/// The user info key of the interruption type.
static let keyType = "AVAudioSessionInterruptionTypeKey"
/// The raw value of the interruption option hinting the capture may resume.
static let optionShouldResume: UInt = 1
/// The raw value of the beginning of an interruption.
static let typeBegan: UInt = 1
/// The raw value of the end of an interruption.
static let typeEnded: UInt = 0
#endif
}
}
@@ -13,17 +13,21 @@ struct RecordingButtonStyle: ButtonStyle {
// MARK: Properties
/// The color scheme of the environment.
@Environment(\.colorScheme) private var colorScheme
@Environment(\.colorScheme)
private var colorScheme
/// Whether the button allows user interaction.
@Environment(\.isEnabled) private var isEnabled
@Environment(\.isEnabled)
private var isEnabled
/// The padding between the button's label and its background, scaled relative to the current dynamic type size.
@ScaledMetric private var padding = Constant.Padding.button
@ScaledMetric
private var padding = Constant.Padding.button
/// The width and height of the button's label, scaled relative to the current dynamic type size.
@ScaledMetric private var size = Constant.Size.button
@ScaledMetric
private var size = Constant.Size.button
/// Whether the color scheme of the button's label should be inverted from the environment's.
private let invertStyle: Bool
@@ -57,7 +61,7 @@ struct RecordingButtonStyle: ButtonStyle {
.foregroundStyle(.windowBackground.opacity(opacity))
.environment(
\.colorScheme,
colorSchemeLabel
colorSchemeLabel
)
.glassEffect(
.regular
@@ -73,9 +77,9 @@ struct RecordingButtonStyle: ButtonStyle {
// MARK: - Helpers
private extension RecordingButtonStyle {
// MARK: Computed
/// The color scheme for the button's label: the opposite of the environment's when ``invertStyle`` is set, the environment's otherwise.
var colorSchemeLabel: ColorScheme {
guard invertStyle else {
@@ -147,9 +151,12 @@ private enum Constant {
#Preview(
"Recording button style"
) {
@Previewable @State var isDisabled: Bool = false
@Previewable @State var isStyleInverted: Bool = false
@Previewable @State
var isDisabled: Bool = false
@Previewable @State
var isStyleInverted: Bool = false
Button {
// Button action closure.
} label: {
@@ -5,9 +5,13 @@ extension RecordingView {
/// The observable model that drives ``RecordingView``.
///
/// The model implements the recording flow as a ``State`` machine: it exposes the visibility and icon of the view's controls for the current state, counts the
/// elapsed recording time, and processes the recorded input once it is sent. The audio capture and its transcription are delegated to the
/// ``Capturing`` and ``Transcribing`` attached at initialization; when either of them fails, the model falls back to the not-recording state.
/// The model implements the recording flow as a ``State`` machine: it exposes the visibility, icons, accessibility labels, and alert
/// message of the view's controls for the current state, counts the elapsed recording time, and processes the recorded input once
/// it is sent. The audio capture and its transcription are delegated to the ``Capturing`` and ``Transcribing`` attached at
/// initialization; when either of them fails, the model falls back to the not-recording state and publishes the failure in ``error``.
///
/// A recording paused by a system interruption of the capture resumes by itself once the interruption ends with the system's
/// resume hint, and a recording already being processed can still be discarded, cancelling its in-flight transcription.
@MainActor
@Observable
final class Model {
@@ -33,7 +37,7 @@ extension RecordingView {
/// The instant the current recording stretch started, or `nil` while not recording.
@ObservationIgnored
private var anchor: ContinuousClock.Instant?
/// The service that captures the audio from a microphone.
@ObservationIgnored
private let capturer: any Capturing
@@ -42,6 +46,10 @@ extension RecordingView {
@ObservationIgnored
private let clock = ContinuousClock()
/// Whether the recording was paused by a system interruption of the audio capture, as opposed to by the user.
@ObservationIgnored
private var isPausedByInterruption = false
/// The binding to the locale of the spoken language to transcribe.
@ObservationIgnored
private let locale: Binding<Locale>
@@ -103,6 +111,22 @@ extension RecordingView {
state == .processing
}
/// The accessibility label for the main button, matching its action in the current state.
var labelMain: LocalizedStringResource {
switch state {
case .notRecording, .processing: .viewRecordingButtonMainLabelRecord
case .recording: .viewRecordingButtonMainLabelPause
case .paused: .viewRecordingButtonMainLabelResume
}
}
/// The accessibility label for the send button: the sending action while paused, the ongoing processing otherwise.
var labelSend: LocalizedStringResource {
isProcessing
? .viewRecordingButtonSendLabelProcessing
: .viewRecordingButtonSendLabelSend
}
/// Whether the main button should be disabled.
var shouldDisableMain: Bool {
state == .processing
@@ -119,6 +143,17 @@ extension RecordingView {
state != .notRecording
}
/// The localized message describing ``error`` for the alert, or `nil` when no error occurred.
var textAlertMessage: LocalizedStringResource? {
switch error {
case .assetsUnavailable: .viewRecordingAlertErrorMessageAssets
case .captureFailed: .viewRecordingAlertErrorMessageCapture
case .permissionDenied: .viewRecordingAlertErrorMessagePermission
case .transcriptionFailed: .viewRecordingAlertErrorMessageTranscription
default: nil
}
}
/// The elapsed recording time, formatted as `mm:ss` for the timer label.
var textTimer: String {
Duration
@@ -140,26 +175,45 @@ extension RecordingView {
/// Handles a press of the discard button.
///
/// Throws away a paused recording: it resets the timer, returns to the not-recording state, and stops the audio capture,
/// deleting the captured audio file. Does nothing in any other state.
/// Throws away a paused recording or one already being processed, cancelling its in-flight transcription: it resets the
/// timer, returns to the not-recording state, and stops the audio capture, deleting the captured audio file. Does nothing in
/// any other state.
func pressedDiscard() {
guard state == .paused else {
return
}
isPausedByInterruption = false
state = .notRecording
switch state {
case .paused:
state = .notRecording
stopTimer()
stopTimer()
accumulated = .zero
elapsedSeconds = 0
accumulated = .zero
elapsedSeconds = 0
enqueueCapturer {
guard let audio = try? await self.capturer.stop() else {
return
enqueueCapturer {
guard let audio = try? await self.capturer.stop() else {
return
}
try? FileManager.default.removeItem(at: audio)
}
case .processing:
taskCapturer?.cancel()
try? FileManager.default.removeItem(at: audio)
state = .notRecording
accumulated = .zero
elapsedSeconds = 0
enqueueCapturer {
guard let audio = try? await self.capturer.stop() else {
return
}
try? FileManager.default.removeItem(at: audio)
}
default:
break
}
}
@@ -168,6 +222,8 @@ extension RecordingView {
/// Starts a recording when idle, pauses an ongoing recording, or resumes a paused one starting and stopping the timer
/// and the audio capture accordingly. Does nothing while the input is being processed.
func pressedMain() {
isPausedByInterruption = false
switch state {
case .notRecording:
state = .recording
@@ -178,10 +234,7 @@ extension RecordingView {
case .recording:
pauseRecording()
case .paused:
state = .recording
startTimer(false)
startCapturer(false)
resumeRecording()
case .processing:
break
}
@@ -196,6 +249,8 @@ extension RecordingView {
///
/// Moves a paused recording into processing, stopping the timer and kicking off ``processInput()``. Does nothing in any other state.
func pressedSend() {
isPausedByInterruption = false
switch state {
case .paused:
state = .processing
@@ -232,7 +287,8 @@ private extension RecordingView.Model {
/// Processes the recorded input: it stops the audio capture, transcribes the captured audio, and publishes the result in ``transcription``;
/// when finished or when either service fails, in which case the failure is published in ``error`` it resets ``elapsedSeconds``
/// and returns the model to the not-recording state.
/// and returns the model to the not-recording state. A processing cancelled through the discard button publishes nothing:
/// the discard already reset the model.
func processInput() async {
guard state == .processing else {
return
@@ -242,21 +298,46 @@ private extension RecordingView.Model {
let audio = try await capturer.stop()
do {
transcription = try await transcribe(
let transcription = try await transcribe(
audio,
locale: locale.wrappedValue
)
} catch {
guard !Task.isCancelled else {
return
}
self.transcription = transcription
}
catch is CancellationError {
return
}
catch {
guard !Task.isCancelled else {
return
}
transcription = nil
self.error = error as? AudioTranscribingError == .assetsNotInstalled
self.error =
error as? AudioTranscribingError == .assetsNotInstalled
? .assetsUnavailable
: .transcriptionFailed
}
} catch is CancellationError {
return
} catch {
guard !Task.isCancelled else {
return
}
transcription = nil
self.error = .captureFailed
}
guard !Task.isCancelled else {
return
}
accumulated = .zero
elapsedSeconds = 0
state = .notRecording
@@ -276,7 +357,8 @@ private extension RecordingView.Model {
}
/// Starts listening to the events emitted by the capturing service, unless already listening: an interruption of the capture pauses
/// an ongoing recording, exactly like a press of the main button would.
/// an ongoing recording, exactly like a press of the main button would, and the end of an interruption resumes the recording it
/// paused but only when the system hints the capture may resume, and never one the user paused themselves.
func listenToEvents() {
guard taskEvents == nil else {
return
@@ -291,8 +373,16 @@ private extension RecordingView.Model {
switch event {
case .interrupted:
if state == .recording {
isPausedByInterruption = true
pauseRecording()
}
case .interruptionEnded(let shouldResume):
if shouldResume, state == .paused, isPausedByInterruption {
resumeRecording()
}
isPausedByInterruption = false
}
}
}
@@ -309,6 +399,14 @@ private extension RecordingView.Model {
}
}
/// Resumes the paused recording: it restarts the timer, without resetting it, and resumes the audio capture.
func resumeRecording() {
state = .recording
startTimer(false)
startCapturer(false)
}
/// Starts the audio capture through the attached ``Capturing``, falling back to the not-recording state and publishing the failure
/// in ``error`` when the service fails.
///
@@ -325,7 +423,8 @@ private extension RecordingView.Model {
self.stopTimer()
self.state = .notRecording
self.error = error as? AudioCapturingError == .permissionNotGranted
self.error =
error as? AudioCapturingError == .permissionNotGranted
? .permissionDenied
: .captureFailed
}
@@ -1,7 +1,7 @@
import SwiftUI
#if canImport(UIKit)
import UIKit
import UIKit
#endif
/// A view that drives a recording session.
@@ -11,17 +11,20 @@ import UIKit
///
/// All state and control behavior lives in the view's ``Model``; the view itself only renders it and forwards button presses.
public struct RecordingView: View {
// MARK: Properties
/// The action that opens a URL, used to open the app's settings from the error alert.
@Environment(\.openURL) private var openURL
@Environment(\.openURL)
private var openURL
/// The font size of the timer's label, scaled relative to the current dynamic type size.
@ScaledMetric
private var fontSize = Constant.Size.timer
/// The model that owns the recording state and drives the view's controls.
@State private var model: Model
/// The font size of the timer's label, scaled relative to the current dynamic type size.
@ScaledMetric private var fontSize = Constant.Size.timer
@State
private var model: Model
/// The closure invoked with the transcription of every processed recording.
private let onTranscription: (Transcription) -> Void
@@ -69,10 +72,10 @@ public struct RecordingView: View {
.easeInOut,
value: model.textTimer
)
.accessibilityLabel(Constant.Text.labelTimer)
.accessibilityLabel(.viewRecordingTimerLabel)
.accessibilityValue(model.textTimerAccessible)
}
GlassEffectContainer {
HStack(
spacing: Constant.Spacing.stack
@@ -87,7 +90,7 @@ public struct RecordingView: View {
invertStyle: true
))
.disabled(model.shouldDisableMain)
.accessibilityLabel(labelMain)
.accessibilityLabel(model.labelMain)
if model.shouldShowActions {
Button {
@@ -104,19 +107,18 @@ public struct RecordingView: View {
invertStyle: !model.isProcessing
))
.disabled(model.isProcessing)
.accessibilityLabel(labelSend)
.accessibilityLabel(model.labelSend)
Button {
model.pressedDiscard()
} label: {
Image(systemName: Constant.Symbol.discard)
Image.Icon.discard
.resizable()
}
.buttonStyle(.recording(
invertStyle: true
))
.disabled(model.shouldDisableMain)
.accessibilityLabel(Constant.Text.labelDiscard)
.accessibilityLabel(.viewRecordingButtonDiscardLabel)
}
}
}
@@ -134,72 +136,32 @@ public struct RecordingView: View {
}
}
.alert(
Constant.Text.titleError,
isPresented: .init(
get: { model.error != nil },
set: { isPresented in
if !isPresented {
model.dismissedError()
}
.viewRecordingAlertErrorTitle,
isPresented: .init {
model.error != nil
} set: { isPresented in
if !isPresented {
model.dismissedError()
}
),
},
presenting: model.error
) { error in
if error == .permissionDenied, let url = Constant.URLs.settings {
Button(Constant.Text.buttonSettings) {
if error == .permissionDenied, let url = URL.settings {
Button(.viewRecordingAlertErrorButtonSettings) {
openURL(url)
}
}
Button(
Constant.Text.buttonOK,
.viewRecordingAlertErrorButtonOk,
role: .cancel
) {
// Dismissal is handled by the presentation binding.
}
} message: { error in
Text(message(for: error))
}
}
}
// MARK: - Helpers
private extension RecordingView {
// MARK: Computed
/// The accessibility label for the main button, matching its action in the current state.
var labelMain: String {
switch model.state {
case .notRecording, .processing: Constant.Text.labelRecord
case .recording: Constant.Text.labelPause
case .paused: Constant.Text.labelResume
}
}
/// The accessibility label for the send button: the sending action while paused, the ongoing processing otherwise.
var labelSend: String {
model.isProcessing
? Constant.Text.labelProcessing
: Constant.Text.labelSend
}
// MARK: Methods
/// Returns the message describing the given error for the alert.
///
/// - Parameter error: The error to describe.
/// - Returns: The message describing the error.
func message(
for error: RecordingError
) -> String {
switch error {
case .assetsUnavailable: Constant.Text.messageAssetsUnavailable
case .captureFailed: Constant.Text.messageCaptureFailed
case .permissionDenied: Constant.Text.messagePermissionDenied
case .transcriptionFailed: Constant.Text.messageTranscriptionFailed
} message: { _ in
if let message = model.textAlertMessage {
Text(message)
}
}
}
@@ -219,98 +181,29 @@ private enum Constant {
/// The spacing between the elements of a stack.
static let stack: CGFloat = 16
}
}
// MARK: - Image+Constants
private extension Image {
/// The symbol constants.
enum Symbol {
enum Icon {
/// The system symbol of the discard button's image.
static let discard = "trash"
static let discard = Image(systemName: "trash")
}
}
/// The text constants, localized through the package's string catalog.
enum Text {
/// The title of the alert's dismissal button.
static let buttonOK = String(
localized: "view.recording.alert.error.button.ok",
bundle: .module
)
/// The accessibility label of the discard button.
static let labelDiscard = String(
localized: "view.recording.button.discard.label",
bundle: .module
)
/// The accessibility label of the main button while recording.
static let labelPause = String(
localized: "view.recording.button.main.label.pause",
bundle: .module
)
/// The accessibility label of the send button while processing.
static let labelProcessing = String(
localized: "view.recording.button.send.label.processing",
bundle: .module
)
/// The accessibility label of the main button while not recording.
static let labelRecord = String(
localized: "view.recording.button.main.label.record",
bundle: .module
)
/// The accessibility label of the main button while paused.
static let labelResume = String(
localized: "view.recording.button.main.label.resume",
bundle: .module
)
/// The accessibility label of the send button while paused.
static let labelSend = String(
localized: "view.recording.button.send.label.send",
bundle: .module
)
/// The accessibility label of the timer.
static let labelTimer = String(
localized: "view.recording.timer.label",
bundle: .module
)
/// The title of the alert's button that opens the app's settings.
static let buttonSettings = String(
localized: "view.recording.alert.error.button.settings",
bundle: .module
)
/// The message describing unavailable speech model assets.
static let messageAssetsUnavailable = String(
localized: "view.recording.alert.error.message.assets",
bundle: .module
)
/// The message describing a failure of the audio capture.
static let messageCaptureFailed = String(
localized: "view.recording.alert.error.message.capture",
bundle: .module
)
/// The message describing a denied microphone permission.
static let messagePermissionDenied = String(
localized: "view.recording.alert.error.message.permission",
bundle: .module
)
/// The message describing a failure of the transcription.
static let messageTranscriptionFailed = String(
localized: "view.recording.alert.error.message.transcription",
bundle: .module
)
/// The title of the error alert.
static let titleError = String(
localized: "view.recording.alert.error.title",
bundle: .module
)
}
// MARK: - URL+Constants
/// The URL constants.
enum URLs {
/// The location that opens the app's settings, where the microphone permission can be granted.
static let settings: URL? = {
#if os(macOS)
URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone")
#else
URL(string: UIApplication.openSettingsURLString)
#endif
}()
}
private extension URL {
/// The location that opens the app's settings, where the microphone permission can be granted.
static let settings: URL? = {
#if os(macOS)
.init(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone")
#else
.init(string: UIApplication.openSettingsURLString)
#endif
}()
}
// MARK: - Previews
@@ -5,6 +5,8 @@ import Recording
/// configured to fail.
@MainActor
final class CapturingMock: Capturing {
// MARK: Properties
/// The stream of events the service emits outside its method calls.
let events: AsyncStream<CapturingEvent>
@@ -20,16 +22,29 @@ final class CapturingMock: Capturing {
/// The continuation that feeds ``events``.
private let continuation: AsyncStream<CapturingEvent>.Continuation
// MARK: Initializers
init() {
(events, continuation) = AsyncStream.makeStream(of: CapturingEvent.self)
}
// MARK: Methods
/// Emits an interruption of the ongoing capture through ``events``.
func interrupt() {
continuation.yield(.interrupted)
}
/// Emits the end of an interruption of the capture through ``events``.
///
/// - Parameter shouldResume: Whether the capture may resume right away.
func endInterruption(
shouldResume: Bool
) {
continuation.yield(.interruptionEnded(shouldResume: shouldResume))
}
func start() async throws {
try await called("start")
}
@@ -1,53 +0,0 @@
import Foundation
import Recording
/// A preinstalling service that records its requests, resolves the supported locales from configurable tables, and emits events
/// on demand.
@MainActor
final class PreinstallingMock: Preinstalling {
/// The stream of events the service emits while preinstalling.
let events: AsyncStream<PreinstallingEvent>
/// The supported equivalents the service resolves, keyed by the requested locale.
var equivalents: [Locale: Locale] = [:]
/// The locales the service reports as supported.
var localesSupported: [Locale] = []
/// The locales a preinstallation was requested for, in request order.
private(set) var localesPreinstalled: [Locale] = []
/// The continuation that feeds ``events``.
private let continuation: AsyncStream<PreinstallingEvent>.Continuation
init() {
(events, continuation) = AsyncStream.makeStream(of: PreinstallingEvent.self)
}
/// Emits the given event through ``events``.
///
/// - Parameter event: The event to emit.
func emit(
_ event: PreinstallingEvent
) {
continuation.yield(event)
}
func preinstall(
for locale: Locale
) async {
localesPreinstalled.append(locale)
}
func supportedLocale(
equivalentTo locale: Locale
) async -> Locale? {
equivalents[locale]
}
func supportedLocales() async -> [Locale] {
localesSupported
}
}
@@ -4,6 +4,8 @@ import Recording
/// A transcribing service with a configurable delay, output, and failure.
@MainActor
final class TranscribingMock: Transcribing {
// MARK: Properties
/// The duration of the simulated transcription work.
var delay: Duration = .seconds(0.2)
@@ -13,6 +15,8 @@ final class TranscribingMock: Transcribing {
/// The transcription the service returns.
var transcription = "This is a mocked transcription."
// MARK: Methods
func callAsFunction(
_ audio: URL,
@@ -15,7 +15,7 @@ struct TranscriptionTests {
"",
"This is a transcription.",
" ",
"Multiline\ntranscribed\ntext."
"Multiline\ntranscribed\ntext.",
])
func `initializer stores the given text`(text: String) {
let transcription = Transcription(text: text)
@@ -23,7 +23,8 @@ struct TranscriptionTests {
#expect(transcription.text == text)
}
@Test func `initializer stores the given identifier`() {
@Test
func `initializer stores the given identifier`() {
let id = UUID()
let transcription = Transcription(
id: id,
@@ -40,10 +41,12 @@ struct TranscriptionTests {
@Suite("Computed properties")
struct ComputedProperties {
@Test(arguments: zip(
["", "This is a transcription.", " "],
[true, false, false]
))
@Test(
arguments: zip(
["", "This is a transcription.", " "],
[true, false, false]
)
)
func `is empty only when the text has no characters`(
for text: String,
expected: Bool
@@ -60,7 +63,8 @@ struct TranscriptionTests {
@Suite("Equatable")
struct EquatableConformance {
@Test func `transcriptions with the same identifier and text are equal`() {
@Test
func `transcriptions with the same identifier and text are equal`() {
let id = UUID()
let first = Transcription(
@@ -75,7 +79,8 @@ struct TranscriptionTests {
#expect(first == second)
}
@Test func `transcriptions with generated identifiers are never equal`() {
@Test
func `transcriptions with generated identifiers are never equal`() {
let first = Transcription(text: "This is a transcription.")
let second = Transcription(text: "This is a transcription.")
@@ -89,13 +94,15 @@ struct TranscriptionTests {
@Suite("Identifiable")
struct IdentifiableConformance {
@Test func `identifier is stable across accesses`() {
@Test
func `identifier is stable across accesses`() {
let transcription = Transcription(text: "This is a transcription.")
#expect(transcription.id == transcription.id)
}
@Test func `identifiers differ between transcriptions`() {
@Test
func `identifiers differ between transcriptions`() {
let first = Transcription(text: "This is a transcription.")
let second = Transcription(text: "This is a transcription.")
@@ -0,0 +1,61 @@
import Foundation
import Testing
@testable import Recording
@Suite("Capturing interruption events")
struct CapturingEventInterruptionTests {
@Test
func `a began interruption maps to the interrupted event`() {
let event = CapturingEvent(interruption: [
"AVAudioSessionInterruptionTypeKey": UInt(1)
])
#expect(event == .interrupted)
}
@Test
func `an ended interruption without options maps to a non-resuming end event`() {
let event = CapturingEvent(interruption: [
"AVAudioSessionInterruptionTypeKey": UInt(0)
])
#expect(event == .interruptionEnded(shouldResume: false))
}
@Test
func `an ended interruption with the resume option maps to a resuming end event`() {
let event = CapturingEvent(interruption: [
"AVAudioSessionInterruptionTypeKey": UInt(0),
"AVAudioSessionInterruptionOptionKey": UInt(1),
])
#expect(event == .interruptionEnded(shouldResume: true))
}
@Test
func `a missing interruption type maps to no event`() {
#expect(CapturingEvent(interruption: [:]) == nil)
#expect(CapturingEvent(interruption: nil) == nil)
}
@Test
func `an unknown interruption type maps to no event`() {
let event = CapturingEvent(interruption: [
"AVAudioSessionInterruptionTypeKey": UInt(99)
])
#expect(event == nil)
}
@Test
func `a mistyped interruption type maps to no event`() {
let event = CapturingEvent(interruption: [
"AVAudioSessionInterruptionTypeKey": "began"
])
#expect(event == nil)
}
}
@@ -14,12 +14,14 @@ struct RecordingViewModelTests {
@Suite("Initial state")
struct InitialState {
@Test func `initial state is not recording with a zeroed timer`() {
@Test
func `initial state is not recording with a zeroed timer`() {
let model = Model()
#expect(model.state == .notRecording)
#expect(model.elapsedSeconds == 0)
#expect(model.error == nil)
#expect(model.textAlertMessage == nil)
#expect(model.textTimer == "00:00")
#expect(model.transcription == nil)
}
@@ -68,7 +70,7 @@ struct RecordingViewModelTests {
@Test(arguments: zip(
[Model.State.notRecording, .recording, .paused, .processing],
[Model.State.notRecording, .recording, .notRecording, .processing]
[Model.State.notRecording, .recording, .notRecording, .notRecording]
))
func `pressed discard transitions to the expected state`(
from initial: Model.State,
@@ -136,6 +138,46 @@ struct RecordingViewModelTests {
#expect(model.isProcessing == expected)
}
@Test(arguments: zip(
[Model.State.notRecording, .recording, .paused, .processing],
[
LocalizedStringResource.viewRecordingButtonMainLabelRecord,
.viewRecordingButtonMainLabelPause,
.viewRecordingButtonMainLabelResume,
.viewRecordingButtonMainLabelRecord,
]
))
func `main label matches the state`(
for state: Model.State,
expected: LocalizedStringResource
) {
let model = Model()
model.drive(to: state)
#expect(model.labelMain == expected)
}
@Test(arguments: zip(
[Model.State.notRecording, .recording, .paused, .processing],
[
LocalizedStringResource.viewRecordingButtonSendLabelSend,
.viewRecordingButtonSendLabelSend,
.viewRecordingButtonSendLabelSend,
.viewRecordingButtonSendLabelProcessing,
]
))
func `send label matches the state`(
for state: Model.State,
expected: LocalizedStringResource
) {
let model = Model()
model.drive(to: state)
#expect(model.labelSend == expected)
}
@Test(arguments: zip(
[Model.State.notRecording, .recording, .paused, .processing],
[false, false, false, true]
@@ -155,7 +197,7 @@ struct RecordingViewModelTests {
[Model.State.notRecording, .recording, .paused, .processing],
[false, false, true, true]
))
func `discard button is visible only while paused`(
func `discard button is visible while paused or processing`(
for state: Model.State,
expected: Bool
) {
@@ -204,7 +246,8 @@ struct RecordingViewModelTests {
@Suite("Timer")
struct Timer {
@Test func `ticks while recording`() async throws {
@Test
func `ticks while recording`() async throws {
let model = Model()
model.pressedMain()
@@ -217,7 +260,8 @@ struct RecordingViewModelTests {
model.pressedMain()
}
@Test func `stops while paused`() async throws {
@Test
func `stops while paused`() async throws {
let model = Model()
model.pressedMain()
@@ -234,7 +278,8 @@ struct RecordingViewModelTests {
#expect(model.elapsedSeconds == secondsWhenPaused)
}
@Test func `keeps elapsed seconds when resumed`() async throws {
@Test
func `keeps elapsed seconds when resumed`() async throws {
let model = Model()
model.pressedMain()
@@ -252,7 +297,8 @@ struct RecordingViewModelTests {
model.pressedMain()
}
@Test func `restarts for a new recording`() async throws {
@Test
func `restarts for a new recording`() async throws {
let model = Model(
transcribe: TranscribingMock()
)
@@ -283,7 +329,8 @@ struct RecordingViewModelTests {
@Suite("Capturer")
struct Capturer {
@Test func `starts the capture for a new recording`() async throws {
@Test
func `starts the capture for a new recording`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
@@ -296,7 +343,8 @@ struct RecordingViewModelTests {
model.pressedMain()
}
@Test func `pauses the capture while paused`() async throws {
@Test
func `pauses the capture while paused`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
@@ -308,7 +356,8 @@ struct RecordingViewModelTests {
#expect(capturer.calls == ["start", "pause"])
}
@Test func `resumes the capture after a pause`() async throws {
@Test
func `resumes the capture after a pause`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
@@ -323,7 +372,8 @@ struct RecordingViewModelTests {
model.pressedMain()
}
@Test func `stops the capture when the input is sent`() async throws {
@Test
func `stops the capture when the input is sent`() async throws {
let capturer = CapturingMock()
let model = Model(
capturer: capturer,
@@ -337,7 +387,8 @@ struct RecordingViewModelTests {
#expect(capturer.calls == ["start", "pause", "stop"])
}
@Test func `stops the capture when a paused recording is discarded`() async throws {
@Test
func `stops the capture when a paused recording is discarded`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
@@ -352,7 +403,8 @@ struct RecordingViewModelTests {
#expect(model.elapsedSeconds == 0)
}
@Test func `serializes the calls when states change rapidly`() async throws {
@Test
func `serializes the calls when states change rapidly`() async throws {
let capturer = CapturingMock()
capturer.delay = .seconds(0.2)
@@ -374,7 +426,8 @@ struct RecordingViewModelTests {
model.pressedMain()
}
@Test func `falls back to not recording when the capture fails`() async throws {
@Test
func `falls back to not recording when the capture fails`() async throws {
let capturer = CapturingMock()
capturer.error = ErrorMock()
@@ -396,7 +449,8 @@ struct RecordingViewModelTests {
@Suite("Errors")
struct Errors {
@Test func `surfaces a capture failure`() async throws {
@Test
func `surfaces a capture failure`() async throws {
let capturer = CapturingMock()
capturer.error = ErrorMock()
@@ -409,9 +463,11 @@ struct RecordingViewModelTests {
#expect(model.error == .captureFailed)
#expect(model.state == .notRecording)
#expect(model.textAlertMessage == .viewRecordingAlertErrorMessageCapture)
}
@Test func `surfaces a denied microphone permission`() async throws {
@Test
func `surfaces a denied microphone permission`() async throws {
let capturer = CapturingMock()
capturer.error = AudioCapturingError.permissionNotGranted
@@ -423,9 +479,11 @@ struct RecordingViewModelTests {
try await Task.sleep(for: .seconds(0.1))
#expect(model.error == .permissionDenied)
#expect(model.textAlertMessage == .viewRecordingAlertErrorMessagePermission)
}
@Test func `surfaces unavailable speech model assets`() async throws {
@Test
func `surfaces unavailable speech model assets`() async throws {
let transcriber = TranscribingMock()
transcriber.error = AudioTranscribingError.assetsNotInstalled
@@ -439,10 +497,12 @@ struct RecordingViewModelTests {
try await Task.sleep(for: .seconds(0.5))
#expect(model.error == .assetsUnavailable)
#expect(model.textAlertMessage == .viewRecordingAlertErrorMessageAssets)
#expect(model.transcription == nil)
}
@Test func `surfaces a transcription failure`() async throws {
@Test
func `surfaces a transcription failure`() async throws {
let transcriber = TranscribingMock()
transcriber.error = ErrorMock()
@@ -456,10 +516,12 @@ struct RecordingViewModelTests {
try await Task.sleep(for: .seconds(0.5))
#expect(model.error == .transcriptionFailed)
#expect(model.textAlertMessage == .viewRecordingAlertErrorMessageTranscription)
#expect(model.transcription == nil)
}
@Test func `clears the error when dismissed`() async throws {
@Test
func `clears the error when dismissed`() async throws {
let capturer = CapturingMock()
capturer.error = ErrorMock()
@@ -475,9 +537,11 @@ struct RecordingViewModelTests {
model.dismissedError()
#expect(model.error == nil)
#expect(model.textAlertMessage == nil)
}
@Test func `clears the error when a new recording starts`() async throws {
@Test
func `clears the error when a new recording starts`() async throws {
let capturer = CapturingMock()
capturer.error = ErrorMock()
@@ -506,7 +570,8 @@ struct RecordingViewModelTests {
@Suite("Interruptions")
struct Interruptions {
@Test func `pauses an ongoing recording when the capture is interrupted`() async throws {
@Test
func `pauses an ongoing recording when the capture is interrupted`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
@@ -522,7 +587,8 @@ struct RecordingViewModelTests {
#expect(capturer.calls == ["start", "pause"])
}
@Test func `changes nothing when the capture is interrupted while paused`() async throws {
@Test
func `changes nothing when the capture is interrupted while paused`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
@@ -539,6 +605,68 @@ struct RecordingViewModelTests {
#expect(capturer.calls == ["start", "pause"])
}
@Test
func `resumes an interrupted recording when the interruption ends with the resume hint`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
model.pressedMain()
try await Task.sleep(for: .seconds(0.1))
capturer.interrupt()
try await Task.sleep(for: .seconds(0.1))
capturer.endInterruption(shouldResume: true)
try await Task.sleep(for: .seconds(0.1))
#expect(model.state == .recording)
#expect(capturer.calls == ["start", "pause", "resume"])
model.pressedMain()
}
@Test
func `stays paused when the interruption ends without the resume hint`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
model.pressedMain()
try await Task.sleep(for: .seconds(0.1))
capturer.interrupt()
try await Task.sleep(for: .seconds(0.1))
capturer.endInterruption(shouldResume: false)
try await Task.sleep(for: .seconds(0.1))
#expect(model.state == .paused)
#expect(capturer.calls == ["start", "pause"])
}
@Test
func `never resumes a recording the user paused`() async throws {
let capturer = CapturingMock()
let model = Model(capturer: capturer)
model.pressedMain()
model.pressedMain()
try await Task.sleep(for: .seconds(0.1))
capturer.endInterruption(shouldResume: true)
try await Task.sleep(for: .seconds(0.1))
#expect(model.state == .paused)
#expect(capturer.calls == ["start", "pause"])
}
}
// MARK: Processing
@@ -547,7 +675,8 @@ struct RecordingViewModelTests {
@Suite("Processing")
struct Processing {
@Test func `returns to not recording with a reset timer and a transcription`() async throws {
@Test
func `returns to not recording with a reset timer and a transcription`() async throws {
let model = Model(
transcribe: TranscribingMock()
)
@@ -569,7 +698,8 @@ struct RecordingViewModelTests {
#expect(model.transcription != nil)
}
@Test func `clears the transcription when the transcriber fails`() async throws {
@Test
func `clears the transcription when the transcriber fails`() async throws {
let transcriber = TranscribingMock()
transcriber.error = ErrorMock()
@@ -587,7 +717,34 @@ struct RecordingViewModelTests {
#expect(model.transcription == nil)
}
@Test func `clears the transcription when a new recording starts`() async throws {
@Test
func `discarding while processing cancels the transcription`() async throws {
let capturer = CapturingMock()
let transcriber = TranscribingMock()
transcriber.delay = .seconds(0.5)
let model = Model(
capturer: capturer,
transcribe: transcriber
)
model.drive(to: .processing)
try await Task.sleep(for: .seconds(0.2))
model.pressedDiscard()
try await Task.sleep(for: .seconds(0.6))
#expect(model.state == .notRecording)
#expect(model.elapsedSeconds == 0)
#expect(model.error == nil)
#expect(model.transcription == nil)
}
@Test
func `clears the transcription when a new recording starts`() async throws {
let model = Model(
transcribe: TranscribingMock()
)