Add login screen.

RiotSwiftUI/Modules/Authentication/Login/Test/UI/AuthenticationLoginUITests.swift

@@ -0,0 +1,44 @@
+//
+// 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 XCTest
+import RiotSwiftUI
+
+class AuthenticationLoginUITests: MockScreenTest {
+
+    override class var screenType: MockScreenState.Type {
+        return MockAuthenticationLoginScreenState.self
+    }
+
+    override class func createTest() -> MockScreenTest {
+        return AuthenticationLoginUITests(selector: #selector(verifyAuthenticationLoginScreen))
+    }
+
+    func verifyAuthenticationLoginScreen() throws {
+        guard let screenState = screenState as? MockAuthenticationLoginScreenState else { fatalError("no screen") }
+        switch screenState {
+        case .promptType(let promptType):
+            verifyAuthenticationLoginPromptType(promptType: promptType)
+        }
+    }
+    
+    func verifyAuthenticationLoginPromptType(promptType: AuthenticationLoginPromptType) {
+        let title = app.staticTexts["title"]
+        XCTAssert(title.exists)
+        XCTAssertEqual(title.label, promptType.title)
+    }
+
+}