Add WifiCallingScreen and corresponding TS flag

Bug: 372732219
Test: atest
Flag: com.android.settings.flags.catalyst_wifi_calling_settings

Change-Id: I3d78b6745e1127a0a7e73ec20ae95e9c9db2c139

tests/robotests/src/com/android/settings/wifi/calling/WifiCallingScreenTest.kt

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * 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.
+ */
+package com.android.settings.wifi.calling
+
+import com.android.settings.flags.Flags
+import com.android.settingslib.preference.CatalystScreenTestCase
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+
+class WifiCallingScreenTest : CatalystScreenTestCase() {
+
+    override val preferenceScreenCreator = WifiCallingScreen()
+
+    override val flagName: String
+        get() = Flags.FLAG_CATALYST_WIFI_CALLING
+
+    @Test
+    fun key() {
+        assertThat(preferenceScreenCreator.key).isEqualTo(WifiCallingScreen.KEY)
+    }
+
+    override fun migration() {}
+}