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/*
* Copyright (C) 2022 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 android.app.sdksandbox.hosttestutils;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.fail;
import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;
public class SecondaryUserUtils {
private static final long NUMBER_OF_POLLS = 2 * 60;
private static final long POLL_INTERVAL_IN_MILLIS = 1000;
private final BaseHostJUnit4Test mTest;
private int mOriginalUserId = -1;
private int mSecondaryUserId = -1;
public SecondaryUserUtils(BaseHostJUnit4Test test) {
mTest = test;
}
public int createAndStartSecondaryUser() throws Exception {
if (mSecondaryUserId != -1) {
throw new IllegalStateException("Cannot create secondary user, it already exists");
}
mOriginalUserId = mTest.getDevice().getCurrentUser();
String name = "SdkSandboxStorageHost_User" + System.currentTimeMillis();
mSecondaryUserId = mTest.getDevice().createUser(name);
// Note we can't install apps on a locked user, so we wait
mTest.getDevice().startUser(mSecondaryUserId, /*waitFlag=*/ true);
return mSecondaryUserId;
}
public void removeSecondaryUserIfNecessary() throws Exception {
removeSecondaryUserIfNecessary(/*waitForUserDataDeletion=*/ false);
}
public void removeSecondaryUserIfNecessary(boolean waitForUserDataDeletion) throws Exception {
if (mSecondaryUserId == -1) {
return;
}
final int userBeingRemoved = mSecondaryUserId;
// Set to -1 so that we can create new users later, even when removal goes wrong
mSecondaryUserId = -1;
if (mOriginalUserId != -1 && userBeingRemoved != -1) {
// Can't remove the 2nd user without switching out of it
assertThat(mTest.getDevice().switchUser(mOriginalUserId)).isTrue();
mTest.getDevice().removeUser(userBeingRemoved);
if (waitForUserDataDeletion) {
waitForUserDataDeletion(userBeingRemoved);
}
}
}
private void waitForUserDataDeletion(int userId) throws Exception {
final String deSdkSandboxDataRootPath = "/data/misc_de/" + userId + "/sdksandbox";
for (int i = 0; i < NUMBER_OF_POLLS; ++i) {
if (!mTest.getDevice().isDirectory(deSdkSandboxDataRootPath)) {
return;
}
Thread.sleep(POLL_INTERVAL_IN_MILLIS);
}
fail("User data was not deleted for UserId " + userId);
}
}
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