Add SpaceRoomCell & Space…ProxyProtocols and use them on the SpaceListScreen. (#4404)

UnitTests/Sources/SpaceListScreenViewModelTests.swift

@@ -5,12 +5,16 @@
 // Please see LICENSE files in the repository root for full details.
 //
 
+import Combine
 import XCTest
 
 @testable import ElementX
 
 @MainActor
 class SpaceListScreenViewModelTests: XCTestCase {
+    var joinedSpacesSubject: CurrentValueSubject<[SpaceRoomProxyProtocol], Never>!
+    var spaceServiceProxy: SpaceServiceProxyMock!
+    
     var viewModel: SpaceListScreenViewModelProtocol!
     
     var context: SpaceListScreenViewModelType.Context {
@@ -19,15 +23,52 @@ class SpaceListScreenViewModelTests: XCTestCase {
 
     func testInitialState() {
         setupViewModel()
-        XCTAssertTrue(context.viewState.rooms.isEmpty)
+        XCTAssertEqual(context.viewState.joinedSpaces.count, 3)
         XCTAssertEqual(context.viewState.joinedRoomsCount, 0)
     }
     
+    func testJoinedSpacesSubscription() {
+        setupViewModel()
+        
+        joinedSpacesSubject.send([])
+        XCTAssertEqual(context.viewState.joinedSpaces.count, 0)
+        
+        joinedSpacesSubject.send([
+            SpaceRoomProxyMock(.init(isSpace: true))
+        ])
+        XCTAssertEqual(context.viewState.joinedSpaces.count, 1)
+    }
+    
+    func testSelectingSpace() async throws {
+        setupViewModel()
+        
+        let selectedSpace = joinedSpacesSubject.value[0]
+        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 spaceRoomProxy) where spaceRoomProxy.id == selectedSpace.id:
+            break
+        default:
+            XCTFail("The action should select the space.")
+        }
+    }
+    
     // MARK: - Helpers
     
     private func setupViewModel() {
         let clientProxy = ClientProxyMock(.init())
         let userSession = UserSessionMock(.init(clientProxy: clientProxy))
-        viewModel = SpaceListScreenViewModel(userSession: userSession)
+        
+        joinedSpacesSubject = .init([
+            SpaceRoomProxyMock(.init(id: "space1", isSpace: true)),
+            SpaceRoomProxyMock(.init(id: "space2", isSpace: true)),
+            SpaceRoomProxyMock(.init(id: "space3", isSpace: true))
+        ])
+        spaceServiceProxy = SpaceServiceProxyMock(.init())
+        spaceServiceProxy.joinedSpacesPublisher = joinedSpacesSubject.asCurrentValuePublisher()
+        
+        viewModel = SpaceListScreenViewModel(userSession: userSession, spaceServiceProxy: spaceServiceProxy)
     }
 }