Add support for quick room search through the Cmd+K shortcut (#2363)

UnitTests/Sources/GlobalSearchScreenViewModelTests.swift

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+//
+// Copyright 2022 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 Combine
+import XCTest
+
+@testable import ElementX
+
+@MainActor
+class GlobalSearchScreenViewModelTests: XCTestCase {
+    var viewModel: GlobalSearchScreenViewModelProtocol!
+    var context: GlobalSearchScreenViewModelType.Context!
+    var cancellables = Set<AnyCancellable>()
+    
+    override func setUpWithError() throws {
+        cancellables.removeAll()
+        viewModel = GlobalSearchScreenViewModel(roomSummaryProvider: MockRoomSummaryProvider(state: .loaded(.mockRooms)),
+                                                imageProvider: MockMediaProvider())
+        context = viewModel.context
+    }
+            
+    func testSearching() async throws {
+        let defered = deferFulfillment(context.$viewState) { state in
+            state.rooms.count == 1
+        }
+        
+        context.searchQuery = "Second"
+            
+        try await defered.fulfill()
+    }
+    
+    func testRoomSelection() {
+        let expectation = expectation(description: "Wait for confirmation")
+        
+        viewModel.actions
+            .sink { action in
+                switch action {
+                case .select(let roomID):
+                    XCTAssertEqual(roomID, "2")
+                    expectation.fulfill()
+                default:
+                    break
+                }
+            }
+            .store(in: &cancellables)
+        
+        context.send(viewAction: .select(roomID: "2"))
+        
+        waitForExpectations(timeout: 5.0)
+    }
+}

UnitTests/__Snapshots__/PreviewTests/test_globalSearchScreen.1.png

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+size 160216

UnitTests/__Snapshots__/PreviewTests/test_globalSearchScreenListRow.1.png

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