Only show joined rooms in the search results

Rooms the user is invited to, or has knocked on, are handled by the chats
list and aren't somewhere search should lead. The search screen now asks
the room summary provider for joined rooms only.

ElementX/Sources/Screens/SearchScreen/SearchScreenViewModel.swift

@@ -183,7 +183,7 @@ class SearchScreenViewModel: SearchScreenViewModelType, SearchScreenViewModelPro
         switch mode {
         case .rooms:
             searchedQueries[mode] = searchQuery
-            roomSummaryProvider.setFilter(.search(query: searchQuery))
+            roomSummaryProvider.setFilter(.search(query: searchQuery, joinedOnly: true))
         case .messages:
             setQueryTask = Task { [weak self] in
                 // Debounce message queries; superseded keystrokes cancel this before it commits.

UnitTests/Sources/SearchScreenViewModelTests.swift

@@ -68,6 +68,25 @@ struct SearchScreenViewModelTests {
         #expect(!searchService.setQueryCalled)
     }
     
+    @Test
+    func searchingExcludesRoomsThatAreNotJoined() async throws {
+        let roomSummaryProvider = RoomSummaryProviderMock(.init(state: .loaded(.mockRooms + .mockInvites)))
+        let clientProxy = ClientProxyMock(.init())
+        clientProxy.searchService = searchService
+        let viewModel = SearchScreenViewModel(roomSummaryProvider: roomSummaryProvider,
+                                              clientProxy: clientProxy,
+                                              mediaProvider: MediaProviderMock(.init()),
+                                              userIndicatorController: userIndicatorController,
+                                              appSettings: appSettings)
+        
+        let deferred = deferFulfillment(viewModel.context.observe(\.viewState.rooms)) { !$0.isEmpty }
+        viewModel.context.searchQuery = "room"
+        try await deferred.fulfill()
+        
+        #expect(roomSummaryProvider.setFilterReceivedFilter == .search(query: "room", joinedOnly: true))
+        #expect(!viewModel.context.viewState.rooms.contains { $0.title == "First room" })
+    }
+    
     @Test
     func messageSearch() async throws {
         let deferred = deferFulfillment(setQuerySubject) { $0 == "Foundation" }