WindowTokenTests.java revision 5fc70966a770eb33dac2928fb5c4a6a85a872f60 
1/*
2 * Copyright (C) 2016 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
17package com.android.server.wm;
18
19import org.junit.Before;
20import org.junit.Test;
21import org.junit.runner.RunWith;
22
23import android.content.Context;
24import android.platform.test.annotations.Presubmit;
25import android.support.test.InstrumentationRegistry;
26import android.support.test.filters.SmallTest;
27import android.support.test.runner.AndroidJUnit4;
28import android.view.IWindow;
29import android.view.WindowManager;
30
31import static android.view.WindowManager.LayoutParams.FIRST_SUB_WINDOW;
32import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION;
33import static org.junit.Assert.assertEquals;
34import static org.junit.Assert.assertFalse;
35import static org.junit.Assert.assertNull;
36import static org.junit.Assert.assertTrue;
37
38/**
39 * Tests for the {@link WindowState} class.
40 *
41 * Build: mmma -j32 frameworks/base/services/tests/servicestests
42 * Install: adb install -r out/target/product/$TARGET_PRODUCT/data/app/FrameworksServicesTests/FrameworksServicesTests.apk
43 * Run: adb shell am instrument -w -e class com.android.server.wm.WindowTokenTests com.android.frameworks.servicestests/android.support.test.runner.AndroidJUnitRunner
44 */
45@SmallTest
46@Presubmit
47@RunWith(AndroidJUnit4.class)
48public class WindowTokenTests {
49
50    private WindowManagerService mWm = null;
51    private final IWindow mIWindow = new TestIWindow();
52
53    @Before
54    public void setUp() throws Exception {
55        final Context context = InstrumentationRegistry.getTargetContext();
56        mWm = TestWindowManagerPolicy.getWindowManagerService(context);
57    }
58
59    @Test
60    public void testAddWindow() throws Exception {
61        final TestWindowToken token = new TestWindowToken();
62
63        assertEquals(0, token.getWindowsCount());
64
65        final WindowState window1 = createWindow(null, TYPE_APPLICATION, token);
66        final WindowState window11 = createWindow(window1, FIRST_SUB_WINDOW, token);
67        final WindowState window12 = createWindow(window1, FIRST_SUB_WINDOW, token);
68        final WindowState window2 = createWindow(null, TYPE_APPLICATION, token);
69        final WindowState window3 = createWindow(null, TYPE_APPLICATION, token);
70
71        token.addWindow(window1);
72        // NOTE: Child windows will not be added to the token as window containers can only
73        // contain/reference their direct children.
74        token.addWindow(window11);
75        token.addWindow(window12);
76        token.addWindow(window2);
77        token.addWindow(window3);
78
79        // Should not contain the child windows that were added above.
80        assertEquals(3, token.getWindowsCount());
81        assertTrue(token.hasWindow(window1));
82        assertFalse(token.hasWindow(window11));
83        assertFalse(token.hasWindow(window12));
84        assertTrue(token.hasWindow(window2));
85        assertTrue(token.hasWindow(window3));
86    }
87
88    @Test
89    public void testAdjustAnimLayer() throws Exception {
90        final TestWindowToken token = new TestWindowToken();
91        final WindowState window1 = createWindow(null, TYPE_APPLICATION, token);
92        final WindowState window11 = createWindow(window1, FIRST_SUB_WINDOW, token);
93        final WindowState window12 = createWindow(window1, FIRST_SUB_WINDOW, token);
94        final WindowState window2 = createWindow(null, TYPE_APPLICATION, token);
95        final WindowState window3 = createWindow(null, TYPE_APPLICATION, token);
96
97        token.addWindow(window1);
98        token.addWindow(window2);
99        token.addWindow(window3);
100
101        final int adj = 50;
102        final int window2StartLayer = window2.mLayer = 100;
103        final int window3StartLayer = window3.mLayer = 200;
104        final int highestLayer = token.adjustAnimLayer(adj);
105
106        assertEquals(adj, window1.mWinAnimator.mAnimLayer);
107        assertEquals(adj, window11.mWinAnimator.mAnimLayer);
108        assertEquals(adj, window12.mWinAnimator.mAnimLayer);
109        assertEquals(window2StartLayer + adj, window2.mWinAnimator.mAnimLayer);
110        assertEquals(window3StartLayer + adj, window3.mWinAnimator.mAnimLayer);
111        assertEquals(window3StartLayer + adj, highestLayer);
112    }
113
114    @Test
115    public void testGetTopWindow() throws Exception {
116        final TestWindowToken token = new TestWindowToken();
117
118        assertNull(token.getTopWindow());
119
120        final WindowState window1 = createWindow(null, TYPE_APPLICATION, token);
121        token.addWindow(window1);
122        assertEquals(window1, token.getTopWindow());
123        final WindowState window11 = createWindow(window1, FIRST_SUB_WINDOW, token);
124        final WindowState window12 = createWindow(window1, FIRST_SUB_WINDOW, token);
125        assertEquals(window12, token.getTopWindow());
126
127        final WindowState window2 = createWindow(null, TYPE_APPLICATION, token);
128        token.addWindow(window2);
129        // Since new windows are added to the bottom of the token, we would still expect the
130        // previous one to the top.
131        assertEquals(window12, token.getTopWindow());
132    }
133
134    @Test
135    public void testGetWindowIndex() throws Exception {
136        final TestWindowToken token = new TestWindowToken();
137
138        final WindowState window1 = createWindow(null, TYPE_APPLICATION, token);
139        assertEquals(-1, token.getWindowIndex(window1));
140        token.addWindow(window1);
141        assertEquals(0, token.getWindowIndex(window1));
142        final WindowState window11 = createWindow(window1, FIRST_SUB_WINDOW, token);
143        final WindowState window12 = createWindow(window1, FIRST_SUB_WINDOW, token);
144        // Child windows should report the same index as their parents.
145        assertEquals(0, token.getWindowIndex(window11));
146        assertEquals(0, token.getWindowIndex(window12));
147
148        final WindowState window2 = createWindow(null, TYPE_APPLICATION, token);
149        assertEquals(-1, token.getWindowIndex(window2));
150        token.addWindow(window2);
151        // Since new windows are added to the bottom of the token, we would expect the added window
152        // to be at index 0.
153        assertEquals(0, token.getWindowIndex(window2));
154        assertEquals(1, token.getWindowIndex(window1));
155    }
156
157    private WindowState createWindow(WindowState parent, int type, WindowToken token) {
158        final WindowManager.LayoutParams attrs = new WindowManager.LayoutParams(type);
159
160        return new WindowState(mWm, null, mIWindow, token, parent, 0, 0, attrs, 0,
161                mWm.getDefaultDisplayContentLocked(), 0);
162    }
163
164    /* Used so we can gain access to some protected members of the {@link WindowToken} class */
165    private class TestWindowToken extends WindowToken {
166
167        TestWindowToken() {
168            super(mWm, null, 0, false);
169        }
170
171        int getWindowsCount() {
172            return mChildren.size();
173        }
174
175        boolean hasWindow(WindowState w) {
176            return mChildren.contains(w);
177        }
178    }
179}
180