/* * Copyright (C) 2012 Google Inc. * Licensed to 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.mail.ui; import android.os.Bundle; import android.test.AndroidTestCase; import android.test.suitebuilder.annotation.SmallTest; import android.test.suitebuilder.annotation.Smoke; import com.android.mail.ui.ViewMode.ModeChangeListener; @Smoke public class ViewModeTests extends AndroidTestCase { /** * Saving and restoring a view mode work correctly. */ @SmallTest public void testBundleSaveRestorePreserveState() { Bundle state = new Bundle(); ViewMode first = new ViewMode(); // Set the state to something known. first.enterConversationListMode(); first.handleSaveInstanceState(state); ViewMode second = new ViewMode(); second.handleRestore(state); assertEquals(ViewMode.CONVERSATION_LIST, second.getMode()); } /** * Register a listener for mode changes. Change a mode, and verify that the listener was * called. Then unregister the listener and change the mode again. Verify that the listener * was NOT called. */ @SmallTest public void testListenerCalledAfterRegistering() { class Ears implements ModeChangeListener { public int numCalls = 0; @Override public void onViewModeChanged(int mode) { numCalls++; } } ViewMode mode = new ViewMode(); Ears ears = new Ears(); mode.addListener(ears); mode.enterConversationListMode(); assertEquals(ears.numCalls, 1); mode.removeListener(ears); mode.enterConversationMode(); assertEquals(ears.numCalls, 1); } /** * The view mode can transition to a state only if it isn't already in that state. */ @SmallTest public void testMultipleTransitionsFail() { ViewMode first = new ViewMode(); // Set the state to something known. first.enterConversationListMode(); assertEquals(ViewMode.CONVERSATION_LIST, first.getMode()); // Cannot transition to Conversation List mode. I'm in it already. first.enterConversationListMode(); assertEquals(ViewMode.CONVERSATION_LIST, first.getMode()); } }