| /* |
| * Copyright (C) 2015 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.tools.idea.uibuilder.model; |
| |
| import com.android.annotations.NonNull; |
| import com.android.tools.idea.uibuilder.LayoutTestCase; |
| import com.intellij.openapi.util.Ref; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import static org.mockito.Mockito.mock; |
| |
| public class SelectionModelTest extends LayoutTestCase { |
| public void test() throws Exception { |
| SelectionModel model = new SelectionModel(); |
| assertTrue(model.isEmpty()); |
| final Ref<Boolean> called = new Ref<Boolean>(false); |
| |
| SelectionListener listener = new SelectionListener() { |
| @Override |
| public void selectionChanged(@NonNull SelectionModel model, @NonNull List<NlComponent> selection) { |
| assertFalse(called.get()); |
| called.set(true); |
| } |
| }; |
| model.addListener(listener); |
| assertFalse(model.getSelection().iterator().hasNext()); |
| model.setSelection(Collections.<NlComponent>emptyList()); |
| assertFalse(called.get()); // no change; shouldn't notify |
| |
| NlComponent component1 = mock(NlComponent.class); |
| NlComponent component2 = mock(NlComponent.class); |
| |
| model.toggle(component1); |
| assertTrue(called.get()); |
| called.set(false); |
| assertEquals(Collections.singletonList(component1), model.getSelection()); |
| assertNull(model.getPrimary()); |
| |
| // Check multi-selection |
| model.setSelection(Arrays.asList(component1, component2), component2); |
| assertTrue(called.get()); |
| called.set(false); |
| assertEquals(Arrays.asList(component1, component2), model.getSelection()); |
| assertSame(component2, model.getPrimary()); |
| |
| model.toggle(component2); |
| assertTrue(called.get()); |
| called.set(false); |
| assertEquals(Collections.singletonList(component1), model.getSelection()); |
| assertNull(model.getPrimary()); |
| |
| model.toggle(component1); |
| assertTrue(called.get()); |
| called.set(false); |
| assertNull(model.getPrimary()); |
| assertTrue(model.isEmpty()); |
| assertEquals(Collections.emptyList(), model.getSelection()); |
| |
| model.toggle(component1); |
| assertTrue(called.get()); |
| called.set(false); |
| |
| model.clear(); |
| assertTrue(called.get()); |
| called.set(false); |
| assertNull(model.getPrimary()); |
| |
| // Make sure we don't get notified once listener is unregistered |
| model.removeListener(listener); |
| model.toggle(component1); |
| assertFalse(called.get()); |
| } |
| } |