shadows/framework/src/main/java/org/robolectric/shadows/ShadowSettings.java
public static void setWifiOn(boolean isOn) {
    Settings.Global.putInt(
        RuntimeEnvironment.application.getContentResolver(), Settings.Global.WIFI_ON, isOn ? 1 : 0);
    Settings.System.putInt(
        RuntimeEnvironment.application.getContentResolver(), Settings.System.WIFI_ON, isOn ? 1 : 0);
  }
public static void setWifiOn(boolean isOn) {
    Settings.Global.putInt(
        RuntimeEnvironment.application.getContentResolver(), Settings.Global.WIFI_ON, isOn ? 1 : 0);
    Settings.System.putInt(
        RuntimeEnvironment.application.getContentResolver(), Settings.System.WIFI_ON, isOn ? 1 : 0);
  }
Non-Android accessor that allows the value of the WIFI_ON setting to be set.

@param isOn new status for wifi mode