Merge "Using WifiCommand to toggle the Wi-Fi state"

import android.os.SystemClock;

import android.os.UserHandle;

import android.provider.Settings;

import android.support.test.uiautomator.UiDevice;

import android.test.InstrumentationTestCase;

import android.util.Log;

import libcore.io.Streams;

import com.google.mockwebserver.MockResponse;

import com.google.mockwebserver.MockWebServer;

import libcore.io.Streams;

import java.io.DataInputStream;

import java.io.DataOutputStream;

import java.io.File;

    private static final String TAG = "DownloadManagerBaseTest";

    protected DownloadManager mDownloadManager = null;

    private MockWebServer mServer = null;

    private UiDevice mUiDevice = null;

    protected String mFileType = "text/plain";

    protected Context mContext = null;

    protected MultipleDownloadsCompletedReceiver mReceiver = null;

    @Override

    public void setUp() throws Exception {

        mContext = getInstrumentation().getContext();

        mUiDevice = UiDevice.getInstance(getInstrumentation());

        mDownloadManager = (DownloadManager)mContext.getSystemService(Context.DOWNLOAD_SERVICE);

        mServer = new MockWebServer();

        mServer.play();

        Log.i(LOG_TAG, "Setting WiFi State to: " + enable);

        WifiManager manager = (WifiManager)mContext.getSystemService(Context.WIFI_SERVICE);

        manager.setWifiEnabled(enable);

        mUiDevice.executeShellCommand("svc wifi " + (enable ? "enable" : "disable"));

        String timeoutMessage = "Timed out waiting for Wifi to be "

            + (enable ? "enabled!" : "disabled!");