Made StateStoreViewModel state mutable and removed the reducer for all the features using it.

RiotSwiftUI/Modules/Room/UserSuggestion/UserSuggestionScreenState.swift

@@ -0,0 +1,62 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+import SwiftUI
+
+@available(iOS 14.0, *)
+enum MockUserSuggestionScreenState: MockScreenState, CaseIterable {
+    case multipleResults
+    
+    static private var members: [RoomMembersProviderMember]!
+    
+    var screenType: Any.Type {
+        UserSuggestionList.self
+    }
+    
+    var screenView: ([Any], AnyView)  {
+        let service = UserSuggestionService(roomMemberProvider: self)
+        let listViewModel = UserSuggestionViewModel(userSuggestionService: service)
+        
+        let viewModel = UserSuggestionListWithInputViewModel(listViewModel: listViewModel) { textMessage in
+            service.processTextMessage(textMessage)
+        }
+        
+        return (
+            [service, listViewModel],
+            AnyView(UserSuggestionListWithInput(viewModel: viewModel)
+                        .addDependency(MockAvatarService.example))
+        )
+    }
+}
+
+@available(iOS 14.0, *)
+extension MockUserSuggestionScreenState: RoomMembersProviderProtocol {
+    func fetchMembers(_ members: ([RoomMembersProviderMember]) -> Void) {
+        if Self.members == nil {
+            Self.members = generateUsersWithCount(10)
+        }
+        
+        members(Self.members)
+    }
+    
+    private func generateUsersWithCount(_ count: UInt) -> [RoomMembersProviderMember] {
+        return (0..<count).map { _ in
+            let identifier = "@" + UUID().uuidString
+            return RoomMembersProviderMember(userId: identifier, displayName: identifier, avatarUrl: "mxc://matrix.org/VyNYAgahaiAzUoOeZETtQ")
+        }
+    }
+}