| /* |
| * Copyright (C) 2017 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.setupwizardlib.items; |
| |
| import static com.google.common.truth.Truth.assertWithMessage; |
| import static org.mockito.Matchers.eq; |
| import static org.mockito.Mockito.inOrder; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.verifyNoMoreInteractions; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.mockito.InOrder; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| import org.robolectric.RobolectricTestRunner; |
| import org.robolectric.annotation.Config; |
| |
| @RunWith(RobolectricTestRunner.class) |
| @Config(sdk = {Config.OLDEST_SDK, Config.NEWEST_SDK}) |
| public class ItemGroupTest { |
| |
| private static final Item CHILD_1 = new EqualsItem("Child 1"); |
| private static final Item CHILD_2 = new EqualsItem("Child 2"); |
| private static final Item CHILD_3 = new EqualsItem("Child 3"); |
| private static final Item CHILD_4 = new EqualsItem("Child 4"); |
| |
| private ItemGroup itemGroup; |
| |
| @Mock private ItemHierarchy.Observer observer; |
| |
| @Before |
| public void setUp() { |
| MockitoAnnotations.initMocks(this); |
| itemGroup = new ItemGroup(); |
| itemGroup.registerObserver(observer); |
| } |
| |
| @Test |
| public void testGroup() { |
| itemGroup.addChild(CHILD_1); |
| itemGroup.addChild(CHILD_2); |
| |
| assertWithMessage("Item at position 0 should be child1") |
| .that(itemGroup.getItemAt(0)) |
| .isSameAs(CHILD_1); |
| assertWithMessage("Item at position 1 should be child2") |
| .that(itemGroup.getItemAt(1)) |
| .isSameAs(CHILD_2); |
| assertWithMessage("Should have 2 children").that(itemGroup.getCount()).isEqualTo(2); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(itemGroup), eq(0), eq(1)); |
| inOrder.verify(observer).onItemRangeInserted(eq(itemGroup), eq(1), eq(1)); |
| } |
| |
| @Test |
| public void testRemoveChild() { |
| itemGroup.addChild(CHILD_1); |
| itemGroup.addChild(CHILD_2); |
| itemGroup.addChild(CHILD_3); |
| |
| itemGroup.removeChild(CHILD_2); |
| |
| assertWithMessage("Item at position 0 should be child1") |
| .that(itemGroup.getItemAt(0)) |
| .isSameAs(CHILD_1); |
| assertWithMessage("Item at position 1 should be child3") |
| .that(itemGroup.getItemAt(1)) |
| .isSameAs(CHILD_3); |
| assertWithMessage("Should have 2 children").that(itemGroup.getCount()).isEqualTo(2); |
| |
| verify(observer).onItemRangeRemoved(eq(itemGroup), eq(1), eq(1)); |
| } |
| |
| @Test |
| public void testClear() { |
| itemGroup.addChild(CHILD_1); |
| itemGroup.addChild(CHILD_2); |
| |
| itemGroup.clear(); |
| |
| assertWithMessage("Should have 0 child").that(itemGroup.getCount()).isEqualTo(0); |
| |
| verify(observer).onItemRangeRemoved(eq(itemGroup), eq(0), eq(2)); |
| } |
| |
| @Test |
| public void testNestedGroup() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup = new ItemGroup(); |
| parentGroup.registerObserver(observer); |
| |
| parentGroup.addChild(CHILD_1); |
| childGroup.addChild(CHILD_2); |
| childGroup.addChild(CHILD_3); |
| parentGroup.addChild(childGroup); |
| parentGroup.addChild(CHILD_4); |
| |
| assertWithMessage("Position 0 should be child 1") |
| .that(parentGroup.getItemAt(0)) |
| .isSameAs(CHILD_1); |
| assertWithMessage("Position 1 should be child 2") |
| .that(parentGroup.getItemAt(1)) |
| .isSameAs(CHILD_2); |
| assertWithMessage("Position 2 should be child 3") |
| .that(parentGroup.getItemAt(2)) |
| .isSameAs(CHILD_3); |
| assertWithMessage("Position 3 should be child 4") |
| .that(parentGroup.getItemAt(3)) |
| .isSameAs(CHILD_4); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(0), eq(1)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(1), eq(2)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(3), eq(1)); |
| verifyNoMoreInteractions(observer); |
| } |
| |
| @Test |
| public void testNestedGroupClearNotification() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup = new ItemGroup(); |
| parentGroup.registerObserver(observer); |
| |
| parentGroup.addChild(CHILD_1); |
| childGroup.addChild(CHILD_2); |
| childGroup.addChild(CHILD_3); |
| parentGroup.addChild(childGroup); |
| parentGroup.addChild(CHILD_4); |
| |
| childGroup.clear(); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(0), eq(1)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(1), eq(2)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(3), eq(1)); |
| verify(observer).onItemRangeRemoved(eq(parentGroup), eq(1), eq(2)); |
| verifyNoMoreInteractions(observer); |
| } |
| |
| @Test |
| public void testNestedGroupRemoveNotification() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup = new ItemGroup(); |
| parentGroup.registerObserver(observer); |
| |
| parentGroup.addChild(CHILD_1); |
| childGroup.addChild(CHILD_2); |
| childGroup.addChild(CHILD_3); |
| parentGroup.addChild(childGroup); |
| parentGroup.addChild(CHILD_4); |
| |
| childGroup.removeChild(CHILD_3); |
| childGroup.removeChild(CHILD_2); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(0), eq(1)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(1), eq(2)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(3), eq(1)); |
| inOrder.verify(observer).onItemRangeRemoved(eq(parentGroup), eq(2), eq(1)); |
| inOrder.verify(observer).onItemRangeRemoved(eq(parentGroup), eq(1), eq(1)); |
| verifyNoMoreInteractions(observer); |
| } |
| |
| @Test |
| public void testNestedGroupClear() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup = new ItemGroup(); |
| parentGroup.registerObserver(observer); |
| |
| parentGroup.addChild(CHILD_1); |
| childGroup.addChild(CHILD_2); |
| childGroup.addChild(CHILD_3); |
| parentGroup.addChild(childGroup); |
| |
| childGroup.clear(); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(0), eq(1)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(1), eq(2)); |
| inOrder.verify(observer).onItemRangeRemoved(eq(parentGroup), eq(1), eq(2)); |
| verifyNoMoreInteractions(observer); |
| } |
| |
| @Test |
| public void testNestedGroupRemoveLastChild() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup1 = new ItemGroup(); |
| ItemGroup childGroup2 = new ItemGroup(); |
| parentGroup.registerObserver(observer); |
| |
| childGroup1.addChild(CHILD_1); |
| childGroup1.addChild(CHILD_2); |
| parentGroup.addChild(childGroup1); |
| childGroup2.addChild(CHILD_3); |
| childGroup2.addChild(CHILD_4); |
| parentGroup.addChild(childGroup2); |
| |
| childGroup2.removeChild(CHILD_4); |
| childGroup2.removeChild(CHILD_3); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(0), eq(2)); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(2), eq(2)); |
| inOrder.verify(observer).onItemRangeRemoved(eq(parentGroup), eq(3), eq(1)); |
| inOrder.verify(observer).onItemRangeRemoved(eq(parentGroup), eq(2), eq(1)); |
| verifyNoMoreInteractions(observer); |
| } |
| |
| @Test |
| public void testNestedGroupClearOnlyChild() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup = new ItemGroup(); |
| parentGroup.registerObserver(observer); |
| |
| childGroup.addChild(CHILD_1); |
| childGroup.addChild(CHILD_2); |
| parentGroup.addChild(childGroup); |
| |
| childGroup.clear(); |
| |
| final InOrder inOrder = inOrder(observer); |
| inOrder.verify(observer).onItemRangeInserted(eq(parentGroup), eq(0), eq(2)); |
| inOrder.verify(observer).onItemRangeRemoved(eq(parentGroup), eq(0), eq(2)); |
| verifyNoMoreInteractions(observer); |
| } |
| |
| @Test |
| public void testNotifyChange() { |
| itemGroup.addChild(CHILD_1); |
| itemGroup.addChild(CHILD_2); |
| |
| CHILD_2.setTitle("Child 2 modified"); |
| |
| verify(observer).onItemRangeChanged(eq(itemGroup), eq(1), eq(1)); |
| } |
| |
| @Test |
| public void testEmptyChildGroup() { |
| ItemGroup parentGroup = new ItemGroup(); |
| ItemGroup childGroup = new ItemGroup(); |
| |
| parentGroup.addChild(CHILD_1); |
| parentGroup.addChild(childGroup); |
| parentGroup.addChild(CHILD_2); |
| |
| assertWithMessage("Position 0 should be child 1") |
| .that(parentGroup.getItemAt(0)) |
| .isSameAs(CHILD_1); |
| assertWithMessage("Position 1 should be child 2") |
| .that(parentGroup.getItemAt(1)) |
| .isSameAs(CHILD_2); |
| } |
| |
| @Test |
| public void testFindItemById() { |
| CHILD_1.setId(12345); |
| CHILD_2.setId(23456); |
| |
| itemGroup.addChild(CHILD_1); |
| itemGroup.addChild(CHILD_2); |
| |
| assertWithMessage("Find item 23456 should return child 2") |
| .that(itemGroup.findItemById(23456)) |
| .isSameAs(CHILD_2); |
| } |
| |
| @Test |
| public void testFindItemByIdNotFound() { |
| CHILD_1.setId(12345); |
| CHILD_2.setId(23456); |
| |
| itemGroup.addChild(CHILD_1); |
| itemGroup.addChild(CHILD_2); |
| |
| assertWithMessage("ID not found should return null") |
| .that(itemGroup.findItemById(56789)) |
| .isNull(); |
| } |
| |
| /** |
| * This class will always return true on {@link #equals(Object)}. Used to ensure that ItemGroup is |
| * using identity rather than equals(). Be sure to use assertSame rather than assertEquals when |
| * comparing items of this class. |
| */ |
| private static class EqualsItem extends Item { |
| |
| EqualsItem(String name) { |
| setTitle(name); |
| } |
| |
| @Override |
| public int hashCode() { |
| return 1; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return obj instanceof Item; |
| } |
| |
| @Override |
| public String toString() { |
| return "EqualsItem{title=" + getTitle() + "}"; |
| } |
| } |
| } |