Files
letro-ios/UnitTests/Sources/SpaceScreenViewModelTests.swift

355 lines
18 KiB
Swift

//
// Copyright 2025 Element Creations Ltd.
// Copyright 2025 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
// Please see LICENSE files in the repository root for full details.
//
import Combine
@testable import ElementX
import MatrixRustSDK
import MatrixRustSDKMocks
import Testing
@MainActor
struct SpaceScreenViewModelTests {
var spaceRoomListProxy: SpaceRoomListProxyMock!
var spaceServiceProxy: SpaceServiceProxyMock!
let mockSpaceRooms = [SpaceServiceRoom].mockSpaceList
var clientProxy: ClientProxyMock!
var paginationStateSubject: CurrentValueSubject<SpaceRoomListPaginationState, Never> = .init(.idle(endReached: true))
var rustLeaveHandle: LeaveSpaceHandleSDKMock!
var viewModel: SpaceScreenViewModelProtocol!
var context: SpaceScreenViewModelType.Context {
viewModel.context
}
@Test
mutating func initialState() {
setupViewModel()
#expect(context.viewState.paginationState == .idle)
#expect(context.viewState.rooms.isEmpty)
#expect(!spaceRoomListProxy.paginateCalled)
}
@Test
mutating func singlePagination() async throws {
// Given a space screen view model for a space with a single paginations worth of children.
let response = mockSpaceRooms.prefix(3)
setupViewModel(paginationResponses: [Array(response)])
#expect(context.viewState.paginationState == .idle)
#expect(context.viewState.rooms.isEmpty)
#expect(!spaceRoomListProxy.paginateCalled)
#expect(!response.isEmpty, "There should be some test rooms.")
// When the pagination is triggered.
var deferred = deferFulfillment(spaceRoomListProxy.paginationStatePublisher) { $0 == .loading }
paginationStateSubject.send(.idle(endReached: false)) // Invert the default to allow paginate to be called.
try await deferred.fulfill()
// Then the screen should show a paginating indicator.
#expect(context.viewState.paginationState == .paginating)
#expect(spaceRoomListProxy.paginateCallsCount == 1)
// When waiting for the pagination to finish.
deferred = deferFulfillment(spaceRoomListProxy.paginationStatePublisher) { $0 == .idle(endReached: true) }
try await deferred.fulfill()
// Then no more pagination requests should be made the the space rooms should be populated.
#expect(context.viewState.paginationState == .endReached)
#expect(spaceRoomListProxy.paginateCallsCount == 1)
#expect(context.viewState.rooms.map(\.id) == response.map(\.id))
}
@Test
mutating func multiplePaginations() async throws {
// Given a space screen view model for a space with two distinct paginations worth of children.
let response1 = mockSpaceRooms.prefix(3)
let response2 = mockSpaceRooms.suffix(mockSpaceRooms.count - 3)
setupViewModel(paginationResponses: [Array(response1), Array(response2)])
#expect(context.viewState.paginationState == .idle)
#expect(context.viewState.rooms.isEmpty)
#expect(!spaceRoomListProxy.paginateCalled)
#expect(!response1.isEmpty, "There should be some test rooms.")
#expect(!response2.isEmpty, "There should be more test rooms.")
// When the pagination is triggered.
let deferredIsPaginating = deferFulfillment(context.observe(\.viewState.paginationState), transitionValues: [.paginating, .idle, .paginating, .endReached])
let deferredState = deferFulfillment(spaceRoomListProxy.paginationStatePublisher, keyPath: \.self, transitionValues: [.loading,
.idle(endReached: false),
.loading,
.idle(endReached: true)])
paginationStateSubject.send(.idle(endReached: false)) // Invert the default to allow paginate to be called.
// Then the screen should show 2 distinct paginations and finish up with all of the rooms visible.
try await deferredIsPaginating.fulfill()
try await deferredState.fulfill()
#expect(context.viewState.paginationState == .endReached)
#expect(spaceRoomListProxy.paginateCallsCount == 2)
#expect(context.viewState.rooms.map(\.id) == mockSpaceRooms.map(\.id))
}
@Test
mutating func selectingSpace() async throws {
setupViewModel()
let selectedSpace = try #require(mockSpaceRooms.first { $0.isSpace && $0.state == .joined }, "There should be a space to select.")
let deferred = deferFulfillment(viewModel.actionsPublisher) { _ in true }
viewModel.context.send(viewAction: .spaceAction(.select(selectedSpace)))
let action = try await deferred.fulfill()
switch action {
case .selectSpace(let spaceRoomListProxy) where spaceRoomListProxy.id == selectedSpace.id:
break
default:
Issue.record("The action should select the space.")
}
}
@Test
mutating func selectingUnjoinedSpace() async throws {
setupViewModel()
let selectedSpace = try #require(mockSpaceRooms.first { $0.isSpace && $0.state != .joined }, "There should be a space to select.")
let deferred = deferFulfillment(viewModel.actionsPublisher) { _ in true }
viewModel.context.send(viewAction: .spaceAction(.select(selectedSpace)))
let action = try await deferred.fulfill()
switch action {
case .selectUnjoinedSpace(let spaceServiceRoom) where spaceServiceRoom.id == selectedSpace.id:
break
default:
Issue.record("The action should select the space.")
}
}
@Test
mutating func selectingRoom() async throws {
setupViewModel()
let selectedRoom = try #require(mockSpaceRooms.first { !$0.isSpace }, "There should be a room to select.")
let deferred = deferFulfillment(viewModel.actionsPublisher) { _ in true }
viewModel.context.send(viewAction: .spaceAction(.select(selectedRoom)))
let action = try await deferred.fulfill()
switch action {
case .selectRoom(let roomID) where roomID == selectedRoom.id:
break
default:
Issue.record("The action should select the room.")
}
}
@Test
mutating func joiningSpace() async throws {
setupViewModel()
let selectedSpace = try #require(mockSpaceRooms.first { $0.isSpace && $0.state != .joined }, "There should be a space to select.")
let deferredState = deferFulfillment(viewModel.context.observe(\.viewState.joiningRoomIDs), transitionValues: [[selectedSpace.id], []])
try await confirmation("Join room") { confirm in
clientProxy.joinRoomViaClosure = { _, _ in
confirm()
return .success(())
}
viewModel.context.send(viewAction: .spaceAction(.join(selectedSpace)))
try await deferredState.fulfill()
}
}
@Test
mutating func joiningRoom() async throws {
setupViewModel()
let selectedRoom = try #require(mockSpaceRooms.first { !$0.isSpace }, "There should be a room to select.")
let deferredState = deferFulfillment(viewModel.context.observe(\.viewState.joiningRoomIDs), transitionValues: [[selectedRoom.id], []])
try await confirmation("Join room") { confirm in
clientProxy.joinRoomViaClosure = { _, _ in
confirm()
return .success(())
}
viewModel.context.send(viewAction: .spaceAction(.join(selectedRoom)))
try await deferredState.fulfill()
}
}
@Test
mutating func manageRoomsWithoutRemoving() throws {
setupViewModel(initialSpaceRooms: mockSpaceRooms)
#expect(context.viewState.editMode == .inactive)
#expect(context.viewState.editModeSelectedIDs.isEmpty)
#expect(context.viewState.visibleRooms.contains { $0.isSpace })
context.send(viewAction: .manageChildren)
#expect(context.viewState.editMode == .transient, "Managing rooms should enable edit mode.")
#expect(context.viewState.editModeSelectedIDs.isEmpty, "No rooms should be selected to begin with.")
#expect(!context.viewState.visibleRooms.contains { $0.isSpace }, "Spaces should be filtered out when managing rooms.")
let selectedRoom = try #require(mockSpaceRooms.first { !$0.isSpace }, "There should be a room to select.")
#expect(!context.viewState.isSpaceIDSelected(selectedRoom.id))
context.send(viewAction: .spaceAction(.select(selectedRoom)))
#expect(context.viewState.editModeSelectedIDs.count == 1, "The selected room should be included.")
#expect(context.viewState.isSpaceIDSelected(selectedRoom.id), "The room should be selected.")
context.send(viewAction: .finishManagingChildren)
#expect(context.viewState.editMode == .inactive, "Cancelling should disable edit mode.")
#expect(context.viewState.editModeSelectedIDs.isEmpty, "Cancelling should clear all selected rooms.")
#expect(context.viewState.visibleRooms.contains { $0.isSpace }, "Cancelling should restore the hidden spaces.")
#expect(!spaceServiceProxy.removeChildFromCalled, "There should be no attempt to remove children when cancelling.")
}
@Test
mutating func manageRoomsRemovingChildren() async throws {
setupViewModel(initialSpaceRooms: mockSpaceRooms)
#expect(context.viewState.editMode == .inactive)
#expect(context.viewState.editModeSelectedIDs.isEmpty)
#expect(context.viewState.visibleRooms.contains { $0.isSpace })
context.send(viewAction: .manageChildren)
#expect(context.viewState.editMode == .transient, "Managing rooms should enable edit mode.")
#expect(context.viewState.editModeSelectedIDs.isEmpty, "No rooms should be selected to begin with.")
#expect(!context.viewState.visibleRooms.contains { $0.isSpace }, "Spaces should be filtered out when managing rooms.")
let firstRoom = try #require(mockSpaceRooms.first { !$0.isSpace }, "There should be a room to select.")
let lastRoom = try #require(mockSpaceRooms.last { !$0.isSpace }, "There should be a room to select.")
#expect(firstRoom.id != lastRoom.id, "There should be more than one room in the list.")
context.send(viewAction: .spaceAction(.select(firstRoom)))
context.send(viewAction: .spaceAction(.select(lastRoom)))
#expect(context.viewState.editModeSelectedIDs.count == 2, "The selected rooms should be included.")
context.send(viewAction: .removeSelectedChildren)
#expect(context.isPresentingRemoveChildrenConfirmation, "A confirmation prompt should be shown before removing children.")
#expect(!spaceServiceProxy.removeChildFromCalled, "There should be no attempt to remove children before confirming.")
let deferred = deferFulfillment(context.observe(\.viewState.editMode)) { $0 == .inactive }
context.send(viewAction: .confirmRemoveSelectedChildren)
try await deferred.fulfill()
#expect(!context.isPresentingRemoveChildrenConfirmation, "Confirming should dismiss the confirmation prompt.")
#expect(context.viewState.editMode == .inactive, "Confirming should disable edit mode when done.")
#expect(context.viewState.editModeSelectedIDs.isEmpty, "Confirming should clear all selected rooms when done.")
#expect(context.viewState.visibleRooms.contains { $0.isSpace }, "Confirming should restore the hidden spaces when done.")
#expect(spaceServiceProxy.removeChildFromCallsCount == 2, "Each selected room should have been removed.")
#expect(spaceRoomListProxy.resetCalled, "The room list should be reset to pick up the changes.")
}
@Test
mutating func manageRoomsRemovingChildrenWithFailure() async throws {
setupViewModel(initialSpaceRooms: mockSpaceRooms)
context.send(viewAction: .manageChildren)
for room in context.viewState.visibleRooms {
context.send(viewAction: .spaceAction(.select(room)))
}
context.send(viewAction: .removeSelectedChildren)
#expect(context.viewState.editMode == .transient, "Managing rooms should enable edit mode.")
#expect(context.viewState.visibleRooms.count == 3, "There should be 3 rooms to begin with.")
#expect(context.viewState.editModeSelectedIDs.count == 3, "All of the visible rooms should be selected.")
#expect(context.isPresentingRemoveChildrenConfirmation, "A confirmation prompt should be shown before removing children.")
let successfulIDs = context.viewState.editModeSelectedIDs.prefix(1)
spaceServiceProxy.removeChildFromClosure = { childID, _ in
if successfulIDs.contains(childID) {
.success(())
} else {
.failure(.sdkError(SpaceServiceProxyMockError.generic))
}
}
let deferred = deferFulfillment(context.observe(\.viewState.visibleRooms.count)) { $0 == 2 }
let deferredFailure = deferFailure(context.observe(\.viewState.editMode), timeout: .seconds(1)) { $0 == .inactive }
context.send(viewAction: .confirmRemoveSelectedChildren)
try await deferred.fulfill()
try await deferredFailure.fulfill()
#expect(context.viewState.editMode == .transient, "The screen should remain in edit mode.")
#expect(context.viewState.visibleRooms.count == 2, "The removed rooms should no longer be listed for selection.")
#expect(context.viewState.editModeSelectedIDs.count == 2, "The removed rooms should no longer be selected.")
#expect(spaceServiceProxy.removeChildFromCallsCount == 2, "Each selected room should have been removed.")
#expect(!spaceRoomListProxy.resetCalled, "The room list should be reset to pick up the changes.")
}
@Test
mutating func leavingSpace() async throws {
setupViewModel()
#expect(context.leaveSpaceViewModel == nil)
let deferredHandle = deferFulfillment(context.observe(\.leaveSpaceViewModel)) { $0 != nil }
context.send(viewAction: .leaveSpace)
try await deferredHandle.fulfill()
#expect(context.leaveSpaceViewModel != nil, "The leave action should show the leave view.")
let leaveSpaceViewModel = try #require(context.leaveSpaceViewModel)
let handle = try #require(context.leaveSpaceViewModel?.state.leaveHandle)
let selectedCount = handle.selectedCount
let firstSelectedRoom = try #require(handle.rooms.first { $0.isSelected })
#expect(selectedCount > 0, "The leave view should have selected rooms to begin with")
leaveSpaceViewModel.context.send(viewAction: .deselectAll)
#expect(handle.selectedCount == 0, "Deselecting all should result in no selected rooms.")
leaveSpaceViewModel.context.send(viewAction: .toggleRoom(roomID: firstSelectedRoom.spaceServiceRoom.id))
#expect(handle.selectedCount == 1, "Toggling a room should result in 1 selected room")
// Confirming the leave should leave the selected room and then the space.
let deferredAction = deferFulfillment(viewModel.actionsPublisher) { $0.isLeftSpace }
leaveSpaceViewModel.context.send(viewAction: .confirmLeaveSpace)
try await deferredAction.fulfill()
#expect(context.leaveSpaceViewModel == nil)
#expect(rustLeaveHandle.leaveRoomIdsCalled)
#expect(rustLeaveHandle.leaveRoomIdsReceivedRoomIds ==
[firstSelectedRoom.spaceServiceRoom.id, spaceRoomListProxy.id],
"Confirming the leave should first leave the selected room and then the space.")
}
// MARK: - Helpers
private mutating func setupViewModel(initialSpaceRooms: [SpaceServiceRoom] = [], paginationResponses: [[SpaceServiceRoom]] = []) {
spaceRoomListProxy = SpaceRoomListProxyMock(.init(spaceServiceRoom: SpaceServiceRoom.mock(isSpace: true),
initialSpaceRooms: initialSpaceRooms,
paginationStateSubject: paginationStateSubject,
paginationResponses: paginationResponses))
spaceServiceProxy = SpaceServiceProxyMock(.init())
spaceServiceProxy.spaceRoomListSpaceIDClosure = { [mockSpaceRooms] spaceID in
guard let spaceServiceRoom = mockSpaceRooms.first(where: { $0.id == spaceID }) else { return .failure(.missingSpace) }
return .success(SpaceRoomListProxyMock(.init(spaceServiceRoom: spaceServiceRoom)))
}
let rustLeaveHandle = LeaveSpaceHandleSDKMock(.init())
spaceServiceProxy.leaveSpaceSpaceIDClosure = { spaceID in
.success(LeaveSpaceHandleProxy(spaceID: spaceID, leaveHandle: rustLeaveHandle))
}
self.rustLeaveHandle = rustLeaveHandle
clientProxy = ClientProxyMock(.init())
viewModel = SpaceScreenViewModel(spaceRoomListProxy: spaceRoomListProxy,
spaceServiceProxy: spaceServiceProxy,
selectedSpaceRoomPublisher: .init(nil),
userSession: UserSessionMock(.init(clientProxy: clientProxy)),
userIndicatorController: UserIndicatorControllerMock())
}
}
private extension SpaceScreenViewModelAction {
var isLeftSpace: Bool {
switch self {
case .leftSpace: true
default: false
}
}
}