Initial setup for the SpaceListScreen. (#4380)

UnitTests/Sources/SpaceListScreenViewModelTests.swift

@@ -0,0 +1,33 @@
+//
+// Copyright 2022-2024 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 XCTest
+
+@testable import ElementX
+
+@MainActor
+class SpaceListScreenViewModelTests: XCTestCase {
+    var viewModel: SpaceListScreenViewModelProtocol!
+    
+    var context: SpaceListScreenViewModelType.Context {
+        viewModel.context
+    }
+
+    func testInitialState() {
+        setupViewModel()
+        XCTAssertTrue(context.viewState.rooms.isEmpty)
+        XCTAssertEqual(context.viewState.joinedRoomsCount, 0)
+    }
+    
+    // MARK: - Helpers
+    
+    private func setupViewModel() {
+        let clientProxy = ClientProxyMock(.init())
+        let userSession = UserSessionMock(.init(clientProxy: clientProxy))
+        viewModel = SpaceListScreenViewModel(userSession: userSession)
+    }
+}