Merge "Ignore tests if multi-user not supported"

import static org.junit.Assert.assertTrue;

import static org.junit.Assert.fail;

import static org.junit.Assume.assumeTrue;

import com.android.tradefed.testtype.DeviceJUnit4ClassRunner;

import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;

 */

@RunWith(DeviceJUnit4ClassRunner.class)

public class MultiUserRollbackTest extends BaseHostJUnit4Test {

    private boolean mSupportMultiUsers;

    // The user that was running originally when the test starts.

    private int mOriginalUserId;

    private int mSecondaryUserId = -1;

    @After

    public void tearDown() throws Exception {

        if (mSupportMultiUsers) {

            removeSecondaryUserIfNecessary();

            runPhaseForUsers("cleanUp", mOriginalUserId);

            uninstallPackage("com.android.cts.install.lib.testapp.A");

            uninstallPackage("com.android.cts.install.lib.testapp.B");

        }

    }

    @Before

    public void setup() throws Exception {

        assumeTrue("Device does not support multiple users",

                getDevice().isMultiUserSupported());

        mSupportMultiUsers = true;

        mOriginalUserId = getDevice().getCurrentUser();

        createAndStartSecondaryUser();

        installPackage("RollbackTest.apk", "--user all");