hostsidetests/settings/app/DeviceOwnerApp/src/com/google/android/cts/deviceowner/ClearDeviceOwnerTest.java

/*
 * Copyright (C) 2019 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.google.android.cts.deviceowner;

import android.app.admin.DevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.test.AndroidTestCase;

/** Utility test to clear the device owner and active admin. */
public class ClearDeviceOwnerTest extends AndroidTestCase {

    private DevicePolicyManager mDevicePolicyManager;

    @Override
    protected void tearDown() throws Exception {
        mDevicePolicyManager =
                (DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
        if (mDevicePolicyManager != null) {
            if (mDevicePolicyManager.isDeviceOwnerApp(DeviceOwnerTest.PACKAGE_NAME)) {
                mDevicePolicyManager.clearDeviceOwnerApp(DeviceOwnerTest.PACKAGE_NAME);
            }
            waitUntilActiveAdminIsRemoved(DeviceOwnerTest.RECEIVER_COMPONENT);
            assertFalse(mDevicePolicyManager.isDeviceOwnerApp(DeviceOwnerTest.PACKAGE_NAME));
            // Ignoring the fact that it might still be an active admin, as removing the admin
            // is flakey on old devices.
            assertFalse(mDevicePolicyManager.isAdminActive(DeviceOwnerTest.RECEIVER_COMPONENT));
        }

        super.tearDown();
    }

    /**
     * This test clears the device owner and active admin on tearDown(). To be called from the host
     * side test once a test case is finished.
     */
    public void testClearDeviceOwner() {}

    private void waitUntilActiveAdminIsRemoved(ComponentName cn) throws InterruptedException {
        for (int i = 0; i < 1000 && mDevicePolicyManager.isAdminActive(cn); i++) {
            Thread.sleep(100);
        }
    }
}