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WebRTCStateAdapter_Tests.swift
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//
// Copyright © 2026 Stream.io Inc. All rights reserved.
//
@testable import StreamVideo
import StreamWebRTC
@preconcurrency import XCTest
final class WebRTCStateAdapter_Tests: XCTestCase, @unchecked Sendable {
private nonisolated(unsafe) static var videoConfig: VideoConfig! = .dummy()
private lazy var user: User! = .dummy()
private lazy var apiKey: String! = .unique
private lazy var callCid: String! = .unique
private lazy var callSettings: CallSettings! = .default
private lazy var mockPeerConnectionFactory: PeerConnectionFactory! = .build(
audioProcessingModule: Self.videoConfig.audioProcessingModule,
audioDeviceModuleSource: MockRTCAudioDeviceModule()
)
private lazy var rtcPeerConnectionCoordinatorFactory: MockRTCPeerConnectionCoordinatorFactory! =
.init(peerConnectionFactory: mockPeerConnectionFactory)
private lazy var mockPermissions: MockPermissionsStore! = .init()
private lazy var mockAudioStore: MockRTCAudioStore! = .init()
private lazy var subject: WebRTCStateAdapter! = .init(
user: user,
apiKey: apiKey,
callCid: callCid,
videoConfig: Self.videoConfig,
callSettings: callSettings,
peerConnectionFactory: mockPeerConnectionFactory,
rtcPeerConnectionCoordinatorFactory: rtcPeerConnectionCoordinatorFactory
)
// MARK: - Lifecycle
override func setUp() {
super.setUp()
mockAudioStore.makeShared()
_ = mockPermissions
}
override func tearDown() async throws {
await subject.cleanUp()
mockAudioStore.dismantle()
mockPermissions.dismantle()
subject = nil
callSettings = nil
mockPermissions = nil
callCid = nil
apiKey = nil
user = nil
mockPeerConnectionFactory = nil
try await super.tearDown()
}
override class func tearDown() {
videoConfig = nil
super.tearDown()
}
// MARK: - init
func test_init_callSettingsWereSetCorrectly() async {
let callSettings = CallSettings(
audioOn: false,
videoOn: false,
cameraPosition: .back
)
self.callSettings = callSettings
_ = subject
await assertEqualAsync(
await subject.callSettings,
callSettings
)
}
// MARK: - setSessionID
func test_sessionID_shouldNotBeEmptyOnInit() async throws {
await assertEqualAsync(await subject.sessionID.isEmpty, false)
}
func test_setSessionID_shouldUpdateSessionID() async throws {
_ = subject
_ = try await subject
.$sessionID
.filter { !$0.isEmpty }
.nextValue()
let expected = String.unique
await subject.set(sessionID: expected)
await assertEqualAsync(await subject.sessionID, expected)
}
// MARK: - setIsTracingEnabled
func test_setIsTracingEnabled_shouldUpdateIsTracingEnabled() async throws {
let expected = true
await subject.set(isTracingEnabled: expected)
await assertEqualAsync(await subject.isTracingEnabled, expected)
}
// MARK: - setCallSettings
func test_setCallSettings_shouldUpdateCallSettings() async throws {
let expected = CallSettings(cameraPosition: .back)
await subject.enqueueCallSettings { _ in expected }
await fulfillment {
let currentValue = await self.subject.callSettings
return currentValue == expected
}
}
// MARK: - setInitialCallSettings
func test_setInitialCallSettings_shouldUpdateInitialCallSettings() async throws {
let expected = CallSettings(cameraPosition: .back)
await subject.set(initialCallSettings: expected)
await assertEqualAsync(await subject.initialCallSettings, expected)
}
// MARK: - setAudioSettings
func test_setAudioSettings_shouldUpdateAudioSettings() async throws {
let expected = AudioSettings(
accessRequestEnabled: false,
defaultDevice: .speaker,
micDefaultOn: true,
opusDtxEnabled: true,
redundantCodingEnabled: true,
speakerDefaultOn: true
)
await subject.set(audioSettings: expected)
await assertEqualAsync(await subject.audioSettings, expected)
}
// MARK: - setVideoOptions
func test_setVideoOptions_shouldUpdateVideoOptions() async throws {
let expected = VideoOptions(
preferredCameraPosition: .back
)
await subject.set(videoOptions: expected)
await assertEqualAsync(await subject.videoOptions.preferredCameraPosition, expected.preferredCameraPosition)
}
// MARK: - setPublishOptions
func test_setPublishOptions_shouldUpdatePublishOptions() async throws {
let expected = PublishOptions(
video: [.dummy(codec: .av1)]
)
await subject.set(publishOptions: expected)
await assertEqualAsync(await subject.publishOptions, expected)
}
// MARK: - setConnectOptions
func test_setConnectOptions_shouldUpdateConnectOptions() async throws {
let expected = ConnectOptions(
iceServers: [
.init(password: .unique, urls: [.unique], username: .unique)
]
)
await subject.set(connectOptions: expected)
await assertEqualAsync(
await subject.connectOptions.rtcConfiguration.iceServers.map {
ICEServer(
password: $0.credential ?? .unique,
urls: $0.urlStrings,
username: $0.username ?? .unique
)
},
expected.rtcConfiguration.iceServers.map {
ICEServer(
password: $0.credential ?? .unique,
urls: $0.urlStrings,
username: $0.username ?? .unique
)
}
)
}
// MARK: - enqueueOwnCapabilities
func test_enqueueOwnCapabilities_shouldUpdateOwnCapabilities() async throws {
let expected = Set<OwnCapability>([OwnCapability.blockUsers, .removeCallMember])
await subject.enqueueOwnCapabilities { expected }
await assertEqualAsync(await subject.ownCapabilities, expected)
}
func test_enqueueOwnCapabilities_withoutSendAudioCapability_turnsAudioOff() async throws {
await subject.enqueueCallSettings { _ in CallSettings(audioOn: true, videoOn: true) }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn
}
await subject.enqueueOwnCapabilities { [.sendVideo] }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn == false && currentSettings.videoOn
}
}
func test_enqueueOwnCapabilities_revokesSendAudioCapability_turnsAudioOff() async throws {
await subject.enqueueOwnCapabilities { [.sendAudio, .sendVideo] }
await subject.enqueueCallSettings { _ in CallSettings(audioOn: true, videoOn: true) }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn
}
await subject.enqueueOwnCapabilities { [.sendVideo] }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn == false && currentSettings.videoOn
}
}
func test_enqueueOwnCapabilities_withoutSendVideoCapability_turnsVideoOff() async throws {
await subject.enqueueCallSettings { _ in CallSettings(audioOn: true, videoOn: true) }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn
}
await subject.enqueueOwnCapabilities { [.sendAudio] }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn == false
}
}
func test_enqueueOwnCapabilities_revokesSendVideoCapability_turnsVideoOff() async throws {
await subject.enqueueOwnCapabilities { [.sendAudio, .sendVideo] }
await subject.enqueueCallSettings { _ in CallSettings(audioOn: true, videoOn: true) }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn
}
await subject.enqueueOwnCapabilities { [.sendAudio] }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn == false
}
}
func test_enqueueOwnCapabilities_revokeBothAudioAndVideoCapabilities_turnsAudioVideoOff() async throws {
await subject.enqueueCallSettings { _ in CallSettings(audioOn: true, videoOn: true) }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn && currentSettings.videoOn
}
await subject.enqueueOwnCapabilities { [] }
await fulfillment {
let currentSettings = await self.subject.callSettings
return currentSettings.audioOn == false && currentSettings.videoOn == false
}
}
func test_enqueueOwnCapabilities_withoutScreenshareCapability_stopsScreenSharing() async throws {
let sfuStack = MockSFUStack()
sfuStack.setConnectionState(to: .connected(healthCheckInfo: .init()))
await subject.set(sfuAdapter: sfuStack.adapter)
await subject.enqueueOwnCapabilities { [.sendAudio, .sendVideo, .screenshare] }
try await subject.configurePeerConnections()
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
let screenShareSessionProvider = await subject.screenShareSessionProvider
screenShareSessionProvider.activeSession = .init(
localTrack: await subject.peerConnectionFactory.mockVideoTrack(forScreenShare: true),
screenSharingType: .inApp,
capturer: MockStreamVideoCapturer(),
includeAudio: true
)
await subject.enqueueOwnCapabilities { [.sendAudio, .sendVideo] }
await fulfillment {
mockPublisher.timesCalled(.stopScreenSharing) == 1
}
}
// MARK: - setStatsAdapter
func test_setStatsReporter_shouldUpdateStatsAdapter() async throws {
let expected = WebRTCStatsAdapter(
sessionID: .unique,
unifiedSessionID: .unique,
isTracingEnabled: true,
trackStorage: await subject.trackStorage
)
await subject.set(statsAdapter: expected)
await assertTrueAsync(await subject.statsAdapter === expected)
}
// MARK: - setSFUAdapter
func test_setSFUAdapter_shouldUpdateSFUAdapterAndStatsReporter() async throws {
let statsAdapter = WebRTCStatsAdapter(
sessionID: .unique,
unifiedSessionID: .unique,
isTracingEnabled: true,
trackStorage: await subject.trackStorage
)
await subject.set(statsAdapter: statsAdapter)
let mockSFUStack = MockSFUStack()
await subject.set(sfuAdapter: mockSFUStack.adapter)
await assertTrueAsync(await subject.sfuAdapter === mockSFUStack.adapter)
XCTAssertTrue(statsAdapter.sfuAdapter === mockSFUStack.adapter)
}
// MARK: - setParticipantsCount
func test_setParticipantsCount_shouldUpdateParticipantsCount() async throws {
let expected = UInt32(32)
await subject.set(participantsCount: expected)
await assertEqualAsync(await subject.participantsCount, expected)
}
// MARK: - setAnonymousCount
func test_setAnonymousCount_shouldUpdateAnonymousCount() async throws {
let expected = UInt32(32)
await subject.set(anonymousCount: expected)
await assertEqualAsync(await subject.anonymousCount, expected)
}
// MARK: - setParticipantPins
func test_setParticipantPins_shouldUpdateParticipantPins() async throws {
let expected = [PinInfo(isLocal: true, pinnedAt: .init(timeIntervalSince1970: 100))]
await subject.set(participantPins: expected)
await assertEqualAsync(await subject.participantPins, expected)
}
// MARK: - setToken
func test_setToken_shouldUpdateToken() async throws {
let expected = String.unique
await subject.set(token: expected)
await assertEqualAsync(await subject.token, expected)
}
// MARK: - setIncomingVideoQualitySettings
func test_setIncomingVideoQualitySettings_shouldUpdateIncomingVideoQualitySettings() async throws {
let expected = IncomingVideoQualitySettings.manual(
group: .custom(sessionIds: [.unique, .unique]),
targetSize: .init(
width: 11,
height: 10
)
)
await subject.set(incomingVideoQualitySettings: expected)
await assertEqualAsync(await subject.incomingVideoQualitySettings, expected)
}
// MARK: - setVideoFilter
func test_setVideoFilter_shouldUpdateVideoFilter() async throws {
let sfuStack = MockSFUStack()
await subject.set(sfuAdapter: sfuStack.adapter)
try await subject.configurePeerConnections()
let expected = VideoFilter(id: .unique, name: .unique, filter: { _ in fatalError() })
await subject.set(videoFilter: expected)
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
XCTAssertEqual(
mockPublisher.recordedInputPayload(VideoFilter.self, for: .setVideoFilter)?.first?.id,
expected.id
)
XCTAssertEqual(
mockPublisher.recordedInputPayload(VideoFilter.self, for: .setVideoFilter)?.first?.name,
expected.name
)
}
// MARK: - clientCapabilities
func test_clientCapabilities_expectedDefaultValue() async throws {
await assertEqualAsync(
await subject.clientCapabilities,
[.subscriberVideoPause]
)
}
// MARK: - enableClientCapabilities
func enableClientCapabilities_shouldUpdateClientCapabilities() async throws {
await subject.enableClientCapabilities([.subscriberVideoPause])
await assertEqualAsync(await subject.clientCapabilities, [.subscriberVideoPause])
}
// MARK: - disableClientCapabilities
func test_enableClientCapabilities_shouldUpdateClientCapabilities() async throws {
await subject.enableClientCapabilities([.subscriberVideoPause])
await subject.disableClientCapabilities([.subscriberVideoPause])
await assertEqualAsync(await subject.clientCapabilities, [])
}
// MARK: - refreshSession
func test_refreshSession_shouldUpdateSessionID() async throws {
let currentSessionId = await subject.sessionID
await subject.refreshSession()
let newSessionId = await subject.sessionID
XCTAssertNotEqual(newSessionId, currentSessionId)
}
// MARK: - configurePeerConnections
func test_configurePeerConnections_withSFU_shouldSetupPeerConnections() async throws {
let sfuStack = MockSFUStack()
await subject.set(sfuAdapter: sfuStack.adapter)
let videoFilter = VideoFilter(
id: .unique,
name: .unique,
filter: { _ in fatalError() }
)
await subject.set(videoFilter: videoFilter)
let ownCapabilities = Set([OwnCapability.blockUsers, .changeMaxDuration])
await subject.enqueueOwnCapabilities { ownCapabilities }
let callSettings = CallSettings(cameraPosition: .back)
await subject.enqueueCallSettings { _ in callSettings }
await fulfillment {
let currentValue = await self.subject.callSettings
return currentValue == callSettings
}
try await subject.configurePeerConnections()
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
let mockSubscriber = try await XCTAsyncUnwrap(await subject.subscriber as? MockRTCPeerConnectionCoordinator)
await fulfillment {
mockPublisher.timesCalled(.setUp) == 1
&& mockSubscriber.timesCalled(.setUp) == 1
}
XCTAssertEqual(
mockPublisher.recordedInputPayload(
(CallSettings, [OwnCapability]).self,
for: .setUp
)?.first?.0,
callSettings
)
XCTAssertEqual(
mockPublisher.recordedInputPayload(
(CallSettings, [OwnCapability]).self,
for: .setUp
)?.first?.1.sorted(),
Array(ownCapabilities).sorted()
)
XCTAssertEqual(
mockPublisher.recordedInputPayload(VideoFilter.self, for: .setVideoFilter)?.first?.id,
videoFilter.id
)
XCTAssertEqual(
mockPublisher.recordedInputPayload(VideoFilter.self, for: .setVideoFilter)?.first?.name,
videoFilter.name
)
XCTAssertEqual(
mockSubscriber.recordedInputPayload(
(CallSettings, [OwnCapability]).self,
for: .setUp
)?.first?.0,
callSettings
)
XCTAssertEqual(
mockSubscriber.recordedInputPayload(
(CallSettings, [OwnCapability]).self,
for: .setUp
)?.first?.1.sorted(),
Array(ownCapabilities).sorted()
)
}
func test_configurePeerConnections_withSFU_completesSetUp() async throws {
let sfuStack = MockSFUStack()
await subject.set(sfuAdapter: sfuStack.adapter)
let videoFilter = VideoFilter(
id: .unique,
name: .unique,
filter: { _ in fatalError() }
)
await subject.set(videoFilter: videoFilter)
let ownCapabilities = Set([OwnCapability.blockUsers, .changeMaxDuration])
await subject.enqueueOwnCapabilities { ownCapabilities }
let callSettings = CallSettings(cameraPosition: .back)
await subject.enqueueCallSettings { _ in callSettings }
try await subject.configurePeerConnections()
await fulfillment { await self.subject.publisher != nil }
let _publisher = await subject.publisher
let publisher = try XCTUnwrap(_publisher)
let _subscriber = await subject.subscriber
let subscriber = try XCTUnwrap(_subscriber)
_ = await Task(timeoutInSeconds: 1) {
try await publisher.ensureSetUpHasBeenCompleted()
}.result
_ = await Task(timeoutInSeconds: 1) {
try await subscriber.ensureSetUpHasBeenCompleted()
}.result
}
func test_configurePeerConnections_withActiveSession_shouldBeginScreenSharing() async throws {
let sfuStack = MockSFUStack()
sfuStack.setConnectionState(to: .connected(healthCheckInfo: .init()))
await subject.set(sfuAdapter: sfuStack.adapter)
let screenShareSessionProvider = await subject.screenShareSessionProvider
screenShareSessionProvider.activeSession = .init(
localTrack: await subject.peerConnectionFactory.mockVideoTrack(forScreenShare: true),
screenSharingType: .inApp,
capturer: MockStreamVideoCapturer(),
includeAudio: true
)
let ownCapabilities = Set<OwnCapability>([OwnCapability.blockUsers])
await subject.enqueueOwnCapabilities { ownCapabilities }
try await subject.configurePeerConnections()
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
XCTAssertEqual(
mockPublisher.recordedInputPayload(
(ScreensharingType, [OwnCapability], Bool).self,
for: .beginScreenSharing
)?.first?.0,
.inApp
)
XCTAssertEqual(
mockPublisher.recordedInputPayload(
(ScreensharingType, [OwnCapability], Bool).self,
for: .beginScreenSharing
)?.first?.1,
[.blockUsers]
)
XCTAssertTrue(
mockPublisher.recordedInputPayload(
(ScreensharingType, [OwnCapability], Bool).self,
for: .beginScreenSharing
)?.first?.2 ?? false
)
}
func test_configurePeerConnections_withoutActiveSession_shouldNotBeginScreenSharing() async throws {
let sfuStack = MockSFUStack()
sfuStack.setConnectionState(to: .connected(healthCheckInfo: .init()))
await subject.set(sfuAdapter: sfuStack.adapter)
let ownCapabilities = Set<OwnCapability>([OwnCapability.blockUsers])
await subject.enqueueOwnCapabilities { ownCapabilities }
try await subject.configurePeerConnections()
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
XCTAssertEqual(mockPublisher.timesCalled(.beginScreenSharing), 0)
}
// MARK: - configureAudioSession
func test_configureAudioSession_audioSessionWasConfigured() async throws {
let sfuStack = MockSFUStack()
sfuStack.setConnectionState(to: .connected(healthCheckInfo: .init()))
let statsAdapter = WebRTCStatsAdapter(
sessionID: .unique,
unifiedSessionID: .unique,
isTracingEnabled: true,
trackStorage: await subject.trackStorage
)
await subject.set(statsAdapter: statsAdapter)
let ownCapabilities = Set<OwnCapability>([OwnCapability.blockUsers])
await subject.enqueueOwnCapabilities { ownCapabilities }
try await subject.configureAudioSession(source: .inApp)
await assertTrueAsync(await subject.audioSession.delegate === subject)
await assertTrueAsync(await subject.audioSession.statsAdapter === statsAdapter)
}
func test_configureAudioSession_dispatchesAudioStoreUpdates() async throws {
try await subject.configureAudioSession(source: .inApp)
await fulfillment {
let state = self.mockAudioStore.audioStore.state
guard let module = state.audioDeviceModule else { return false }
let factory = await self.subject.peerConnectionFactory
let adapterModule = factory.audioDeviceModule
return module === adapterModule
&& state.isRecording == adapterModule.isRecording
&& state.isMicrophoneMuted == adapterModule.isMicrophoneMuted
}
}
func test_configureAudioSession_callKitSource_completesActionCompletion() async throws {
let completionExpectation = expectation(
description: "CallKit action completion invoked."
)
let sfuStack = MockSFUStack()
sfuStack.setConnectionState(to: .connected(healthCheckInfo: .init()))
await subject.set(sfuAdapter: sfuStack.adapter)
let ownCapabilities = Set<OwnCapability>([OwnCapability.blockUsers])
await subject.enqueueOwnCapabilities { ownCapabilities }
try await subject.configureAudioSession(
source: .callKit(.init {
completionExpectation.fulfill()
})
)
await safeFulfillment(of: [completionExpectation], timeout: 1)
}
// MARK: - cleanUp
func test_cleanUp_shouldResetProperties() async throws {
let sfuStack = MockSFUStack()
try await prepare(sfuStack: sfuStack)
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
let mockSubscriber = try await XCTAsyncUnwrap(await subject.subscriber as? MockRTCPeerConnectionCoordinator)
await subject.cleanUp()
XCTAssertEqual(mockPublisher.timesCalled(.close), 1)
XCTAssertEqual(mockSubscriber.timesCalled(.close), 1)
XCTAssertEqual(sfuStack.webSocket.timesCalled(.disconnectAsync), 1)
await fulfillment { await self.subject.publisher == nil }
await assertNilAsync(await subject.publisher)
await assertNilAsync(await subject.subscriber)
await assertNilAsync(await subject.statsAdapter)
await assertNilAsync(await subject.sfuAdapter)
await assertEqualAsync(await subject.token, "")
await assertEqualAsync(await subject.sessionID, "")
await assertEqualAsync(await subject.ownCapabilities, [])
await assertEqualAsync(await subject.participants, [:])
await assertEqualAsync(await subject.participantsCount, 0)
await assertEqualAsync(await subject.anonymousCount, 0)
await assertEqualAsync(await subject.participantPins, [])
}
func test_cleanUp_shouldStopActiveCaptureSession() async throws {
let mockVideoCapturer = MockStreamVideoCapturer()
let videoCaptureSessionProvider = await subject.videoCaptureSessionProvider
videoCaptureSessionProvider.activeSession = .init(
position: .front,
localTrack: PeerConnectionFactory.mock().mockVideoTrack(forScreenShare: false),
capturer: mockVideoCapturer
)
await subject.cleanUp()
await fulfillment { mockVideoCapturer.timesCalled(.stopCapture) > 0 }
}
func test_cleanUp_shouldStopActiveScreemShareSession() async throws {
let mockVideoCapturer = MockStreamVideoCapturer()
let screenShareSessionProvider = await subject.screenShareSessionProvider
screenShareSessionProvider.activeSession = .init(
localTrack: PeerConnectionFactory.mock().mockVideoTrack(forScreenShare: true),
screenSharingType: .inApp,
capturer: mockVideoCapturer,
includeAudio: true
)
await subject.cleanUp()
await fulfillment { mockVideoCapturer.timesCalled(.stopCapture) > 0 }
}
// MARK: - cleanUpForReconnection
func test_cleanUpForReconnection_shouldResetPropertiesForReconnection() async throws {
let sfuStack = MockSFUStack()
let ownCapabilities = Set([OwnCapability.blockUsers])
let pins = [PinInfo(isLocal: true, pinnedAt: .init())]
let userId = String.unique
let currentParticipant = await CallParticipant.dummy(id: subject.sessionID)
let participants = [
userId: CallParticipant.dummy(id: userId),
currentParticipant.sessionId: currentParticipant
]
try await prepare(
sfuStack: sfuStack,
ownCapabilities: ownCapabilities,
participants: participants,
participantPins: pins
)
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
let mockSubscriber = try await XCTAsyncUnwrap(await subject.subscriber as? MockRTCPeerConnectionCoordinator)
let sessionId = await subject.sessionID
await subject.didAddTrack(
.dummy(
kind: .video,
peerConnectionFactory: await subject.peerConnectionFactory
),
type: .video,
for: userId
)
await fulfillment { await self.subject.participants[userId]?.track != nil }
await subject.cleanUpForReconnection()
XCTAssertEqual(mockPublisher.timesCalled(.close), 0)
XCTAssertEqual(mockSubscriber.timesCalled(.close), 0)
XCTAssertEqual(sfuStack.webSocket.timesCalled(.disconnectAsync), 0)
await assertNilAsync(await subject.publisher)
await assertNilAsync(await subject.subscriber)
await assertNilAsync(await subject.statsAdapter)
await assertNilAsync(await subject.sfuAdapter)
await assertEqualAsync(await subject.token, "")
await assertEqualAsync(await subject.sessionID, sessionId)
await assertEqualAsync(await subject.ownCapabilities, ownCapabilities)
await assertEqualAsync(await subject.participants[userId]?.track, nil)
await assertEqualAsync(await subject.participantsCount, 12)
await assertEqualAsync(await subject.anonymousCount, 22)
await assertEqualAsync(await subject.participantPins, pins)
}
func test_cleanUpForReconnection_setsInitialCallSettingsToCallSettings() async throws {
let sfuStack = MockSFUStack()
let ownCapabilities = Set([OwnCapability.blockUsers])
let pins = [PinInfo(isLocal: true, pinnedAt: .init())]
let userId = String.unique
let currentParticipant = await CallParticipant.dummy(id: subject.sessionID)
let participants = [
userId: CallParticipant.dummy(id: userId),
currentParticipant.sessionId: currentParticipant
]
try await prepare(
sfuStack: sfuStack,
ownCapabilities: ownCapabilities,
participants: participants,
participantPins: pins
)
await subject.enqueueCallSettings { _ in .init(cameraPosition: .back) }
await fulfillment { await self.subject.callSettings.cameraPosition == .back }
await subject.cleanUpForReconnection()
await assertEqualAsync(await subject.callSettings.cameraPosition, .back)
}
// MARK: - didAddTrack
func test_didAddTrack_videoOfExistingParticipant_shouldAddTrack() async throws {
let participant = CallParticipant.dummy()
let track = await subject
.peerConnectionFactory
.mockVideoTrack(forScreenShare: false)
await subject.enqueue { _ in [participant.sessionId: participant] }
await subject.didAddTrack(
track,
type: .video,
for: participant.sessionId
)
await fulfillment {
await self
.subject
.participants[participant.sessionId]?
.track?
.trackId == track.trackId
}
}
func test_didAddTrack_screenSharingOfExistingParticipant_shouldAddTrack() async throws {
let participant = CallParticipant.dummy()
let track = await subject
.peerConnectionFactory
.mockVideoTrack(forScreenShare: true)
await subject.enqueue { _ in [participant.sessionId: participant] }
await subject.didAddTrack(
track,
type: .screenshare,
for: participant.sessionId
)
await fulfillment {
await self
.subject
.participants[participant.sessionId]?
.screenshareTrack?
.trackId == track.trackId
}
}
// MARK: - didRemoveTrack
func test_didRemoveTrack_videoOfExistingParticipant_shouldRemoveTrack() async throws {
let participant = CallParticipant.dummy()
let track = await subject
.peerConnectionFactory
.mockVideoTrack(forScreenShare: false)
await subject.enqueue { _ in [participant.sessionId: participant] }
await subject.didAddTrack(track, type: .video, for: participant.sessionId)
await subject.didRemoveTrack(
for: participant.sessionId
)
await fulfillment {
await self
.subject
.participants[participant.sessionId]?
.track?
.trackId == nil
}
}
func test_didRemoveTrack_screenSharingOfExistingParticipant_shouldRemoveTrack() async throws {
let participant = CallParticipant.dummy()
let track = await subject
.peerConnectionFactory
.mockVideoTrack(forScreenShare: true)
await subject.enqueue { _ in [participant.sessionId: participant] }
await subject.didAddTrack(track, type: .screenshare, for: participant.sessionId)
await subject.didRemoveTrack(
for: participant.sessionId
)
await fulfillment {
await self
.subject
.participants[participant.sessionId]?
.screenshareTrack?
.trackId == nil
}
}
// MARK: - trackFor
func test_trackFor_withVideo_shouldReturnCorrectTrack() async throws {
let participant = CallParticipant.dummy()
let track = await subject
.peerConnectionFactory
.mockVideoTrack(forScreenShare: false)
await subject.enqueue { _ in [participant.sessionId: participant] }
await subject.didAddTrack(track, type: .video, for: participant.sessionId)
let actual = await subject.track(for: participant.sessionId, of: .video)
XCTAssertEqual(track.trackId, actual?.trackId)
}
func test_trackFor_withScreenShare_shouldReturnCorrectTrack() async throws {
let participant = CallParticipant.dummy()
let track = await subject
.peerConnectionFactory
.mockVideoTrack(forScreenShare: true)
await subject.enqueue { _ in [participant.sessionId: participant] }
await subject.didAddTrack(track, type: .screenshare, for: participant.sessionId)
let actual = await subject.track(for: participant.sessionId, of: .screenshare)
XCTAssertEqual(track.trackId, actual?.trackId)
}
// MARK: - didUpdateVideoOptions
func test_didUpdateVideoOptions_shouldUpdateVideoOptions() async throws {
let sfuStack = MockSFUStack()
sfuStack.setConnectionState(to: .connected(healthCheckInfo: .init()))
await subject.set(sfuAdapter: sfuStack.adapter)
try await subject.configurePeerConnections()
let mockPublisher = try await XCTAsyncUnwrap(await subject.publisher as? MockRTCPeerConnectionCoordinator)
let mockSubscriber = try await XCTAsyncUnwrap(await subject.subscriber as? MockRTCPeerConnectionCoordinator)
let newVideoOptions = VideoOptions(
preferredCameraPosition: .back
)
await subject.set(videoOptions: newVideoOptions)
XCTAssertEqual(mockPublisher.videoOptions.preferredCameraPosition, .back)
XCTAssertEqual(mockSubscriber.videoOptions.preferredCameraPosition, .back)
}
// MARK: - didUpdateParticipants
func test_didUpdateParticipants_shouldAssignTracksToParticipants() async throws {
let initialParticipants: [String: CallParticipant] = [
"1": .dummy(id: "1"),
"2": .dummy(id: "2"),
"3": .dummy(id: "3")
]
let participantTracks: [String: RTCMediaStreamTrack] = [
"1": await subject.peerConnectionFactory.mockAudioTrack(),
"2": await subject.peerConnectionFactory.mockVideoTrack(forScreenShare: false),
"3": await subject.peerConnectionFactory.mockVideoTrack(forScreenShare: true)
]
await subject.enqueue { _ in initialParticipants }
await subject.didAddTrack(participantTracks["2"]!, type: .video, for: "2")
await subject.didAddTrack(participantTracks["3"]!, type: .screenshare, for: "3")
await subject.enqueue { _ in initialParticipants }
await fulfillment {
let participant2 = await self.subject.participants["2"]
let participant3 = await self.subject.participants["3"]
return participant2?.track?.trackId == participantTracks["2"]?.trackId
&& participant3?.screenshareTrack?.trackId == participantTracks["3"]?.trackId
}
}
func test_didUpdateParticipants_withIncomingVideoQualitySettings_shouldAssignTracksToParticipantsCorrectly() async throws {
let initialParticipants: [String: CallParticipant] = [
"1": .dummy(id: "1"),
"2": .dummy(id: "2"),
"3": .dummy(id: "3")
]
let participantTracks: [String: RTCMediaStreamTrack] = [
"1": await subject.peerConnectionFactory.mockAudioTrack(),
"2": await subject.peerConnectionFactory.mockVideoTrack(forScreenShare: false),
"3": await subject.peerConnectionFactory.mockVideoTrack(forScreenShare: true)
]
await subject.set(incomingVideoQualitySettings: .disabled(group: .custom(sessionIds: ["2"])))
await subject.enqueue { _ in initialParticipants }
await subject.didAddTrack(participantTracks["2"]!, type: .video, for: "2")
await subject.didAddTrack(participantTracks["3"]!, type: .screenshare, for: "3")
await subject.enqueue { _ in initialParticipants }
await fulfillment {
let participant2 = await self.subject.participants["2"]
let participant3 = await self.subject.participants["3"]
return participant2?.track == nil
&& participant3?.screenshareTrack?.trackId == participantTracks["3"]?.trackId
}
}
// MARK: - audioSessionDidUpdateCallSettings
func test_audioSessionDidUpdateCallSettings_updatesCallSettingsAsExpected() async {
let initialCallSettings = CallSettings(
audioOn: false,