1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.server.wm; 18 19 import static android.window.DisplayAreaOrganizer.FEATURE_DEFAULT_TASK_CONTAINER; 20 import static android.window.DisplayAreaOrganizer.FEATURE_ROOT; 21 22 import static com.google.common.truth.Truth.assertThat; 23 24 import android.platform.test.annotations.Presubmit; 25 import android.server.wm.WindowManagerState.DisplayArea; 26 import android.server.wm.WindowManagerState.DisplayContent; 27 import android.view.Display; 28 29 import org.junit.Before; 30 import org.junit.Test; 31 32 import java.util.ArrayList; 33 import java.util.HashSet; 34 import java.util.List; 35 import java.util.Set; 36 37 /** 38 * Build/Install/Run: 39 * atest CtsWindowManagerDeviceTestCases:DisplayAreaPolicyTests 40 */ 41 @Presubmit 42 public class DisplayAreaPolicyTests extends ActivityManagerTestBase { 43 44 private List<DisplayContent> mDisplays; 45 46 @Before 47 @Override setUp()48 public void setUp() throws Exception { 49 super.setUp(); 50 51 // Verify on all displays. 52 mWmState.computeState(); 53 mDisplays = mWmState.getDisplays(); 54 } 55 isTrustedDisplay(DisplayContent displayContent)56 private boolean isTrustedDisplay(DisplayContent displayContent) { 57 return (displayContent.getFlags() & Display.FLAG_TRUSTED) != 0; 58 } 59 60 /** 61 * DisplayContent should have feature id of FEATURE_ROOT. 62 */ 63 @Test testDisplayContent()64 public void testDisplayContent() { 65 for (DisplayContent displayContent : mDisplays) { 66 assertThat(displayContent.getFeatureId()).isEqualTo(FEATURE_ROOT); 67 } 68 } 69 70 /** 71 * There must be exactly one default TaskDisplayArea per display. 72 */ 73 @Test testDefaultTaskDisplayArea()74 public void testDefaultTaskDisplayArea() { 75 for (DisplayContent displayContent : mDisplays) { 76 final List<DisplayArea> taskDisplayAreas = displayContent.getAllTaskDisplayAreas(); 77 final List<DisplayArea> defaultTda = new ArrayList<>(); 78 for (DisplayArea taskDisplayArea : taskDisplayAreas) { 79 if (taskDisplayArea.getFeatureId() == FEATURE_DEFAULT_TASK_CONTAINER) { 80 defaultTda.add(taskDisplayArea); 81 } 82 } 83 assertThat(defaultTda).hasSize(1); 84 } 85 } 86 87 /** 88 * TaskDisplayArea and RootDisplayArea must have unique feature ids per display. 89 */ 90 @Test testDisplayAreaUniqueId()91 public void testDisplayAreaUniqueId() { 92 for (DisplayContent displayContent : mDisplays) { 93 // TaskDisplayArea and RootDisplayArea must have unique feature ids. 94 final Set<Integer> uniqueIds = new HashSet<>(); 95 uniqueIds.add(displayContent.getFeatureId()); 96 // Other DisplayAreas can have non-unique feature ids, but shouldn't be the same with 97 // any TaskDisplayArea or RootDisplayArea. 98 final Set<Integer> nonUniqueIds = new HashSet<>(); 99 final List<DisplayArea> displayAreas = displayContent.getAllChildDisplayAreas(); 100 101 for (DisplayArea displayArea : displayAreas) { 102 final int featureId = displayArea.getFeatureId(); 103 if (displayArea.isRootDisplayArea() || displayArea.isTaskDisplayArea()) { 104 assertThat(uniqueIds.add(featureId)).isTrue(); 105 assertThat(nonUniqueIds).doesNotContain(featureId); 106 } else { 107 nonUniqueIds.add(featureId); 108 assertThat(uniqueIds).doesNotContain(featureId); 109 } 110 } 111 } 112 } 113 } 114