Sebastian Franco
00aff95ac0
This code contains utility clases that can change the display
of a device and make it look like another device.
The function DisplayEmulator#emulate receives a DeviceEmulationData
a certain grid to emulate and a callback, everyting that happens
inside of the callback will happen when the device is being emulated
and can be used by other tests.
Example test:
package com.android.launcher3.deviceemulator;
import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.MediumTest;
import com.android.launcher3.deviceemulator.models.DeviceEmulationData;
import com.android.launcher3.ui.AbstractLauncherUiTest;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.util.concurrent.TimeUnit;
@MediumTest
@RunWith(AndroidJUnit4.class)
public class TestTest extends AbstractLauncherUiTest {
@Test
public void testEmulation() throws Exception {
String deviceCode = "pixel6pro";
DeviceEmulationData deviceData = DeviceEmulationData.getDevice(deviceCode);
String grid = "normal";
DisplayEmulator displayEmulator = new DisplayEmulator(mTargetContext);
displayEmulator.emulate(deviceData, grid, () ->{
TimeUnit.SECONDS.sleep(10);
return true;
});
}
}
Test: You could use the test above to make your device look like a
Pixel6 pro for 10 secons.
Fix: 229028257
Change-Id: Icd79be405a2e14dda0bc5f555b0e46149e16f912
96 lines
3.9 KiB
Java
96 lines
3.9 KiB
Java
/*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.deviceemulator;
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import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
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import android.content.ContentResolver;
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import android.content.ContentValues;
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import android.content.Context;
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import android.net.Uri;
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import android.os.UserHandle;
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import android.view.Display;
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import android.view.IWindowManager;
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import android.view.WindowManagerGlobal;
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import androidx.test.uiautomator.UiDevice;
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import com.android.launcher3.deviceemulator.models.DeviceEmulationData;
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import com.android.launcher3.tapl.LauncherInstrumentation;
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import com.android.launcher3.util.window.WindowManagerProxy;
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import java.util.concurrent.Callable;
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public class DisplayEmulator {
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Context mContext;
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LauncherInstrumentation mLauncher;
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DisplayEmulator(Context context, LauncherInstrumentation launcher) {
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mContext = context;
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mLauncher = launcher;
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}
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/**
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* By changing the WindowManagerProxy we can override the window insets information
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**/
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private IWindowManager changeWindowManagerInstance(DeviceEmulationData deviceData) {
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WindowManagerProxy.INSTANCE.initializeForTesting(
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new TestWindowManagerProxy(mContext, deviceData));
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return WindowManagerGlobal.getWindowManagerService();
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}
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public <T> T emulate(DeviceEmulationData device, String grid, Callable<T> runInEmulation)
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throws Exception {
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WindowManagerProxy original = WindowManagerProxy.INSTANCE.get(mContext);
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// Set up emulation
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final int userId = UserHandle.myUserId();
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WindowManagerProxy.INSTANCE.initializeForTesting(
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new TestWindowManagerProxy(mContext, device));
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IWindowManager wm = changeWindowManagerInstance(device);
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// Change density twice to force display controller to reset its state
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wm.setForcedDisplayDensityForUser(Display.DEFAULT_DISPLAY, device.density / 2, userId);
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wm.setForcedDisplayDensityForUser(Display.DEFAULT_DISPLAY, device.density, userId);
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wm.setForcedDisplaySize(Display.DEFAULT_DISPLAY, device.width, device.height);
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wm.setForcedDisplayScalingMode(Display.DEFAULT_DISPLAY, 1);
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// Set up grid
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setGrid(grid);
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try {
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return runInEmulation.call();
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} finally {
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// Clear emulation
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WindowManagerProxy.INSTANCE.initializeForTesting(original);
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UiDevice.getInstance(getInstrumentation()).executeShellCommand("cmd window reset");
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}
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}
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private void setGrid(String gridType) {
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// When the grid changes, the desktop arrangement get stored in SQL and we need to wait to
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// make sure there is no SQL operations running and get SQL_BUSY error, that's why we need
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// to call mLauncher.waitForLauncherInitialized();
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mLauncher.waitForLauncherInitialized();
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String testProviderAuthority = mContext.getPackageName() + ".grid_control";
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Uri gridUri = new Uri.Builder()
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.scheme(ContentResolver.SCHEME_CONTENT)
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.authority(testProviderAuthority)
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.appendPath("default_grid")
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.build();
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ContentValues values = new ContentValues();
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values.put("name", gridType);
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mContext.getContentResolver().update(gridUri, values, null, null);
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}
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}
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