[Android] Convert to BatteryUtils

build/android/pylib/device/battery_utils_test.py

 #!/usr/bin/env python
 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Unit tests for the contents of battery_utils.py
 """
 
 import logging
@@ skipping 123 matching lines @@
 
   def testGetPackagePowerData(self):
     with self.assertCalls(
         (self.call.device.RunShellCommand(
             ['dumpsys', 'batterystats', '-c'], check_return=True),
             self._DUMPSYS_OUTPUT)):
       data = self.battery.GetPackagePowerData('test_package2')
       self.assertEqual(data, {'uid': '1001', 'data': [2.0]})
 
 
+class BatteryUtilsChargeDevice(BatteryUtilsTest):
+
+  @mock.patch('time.sleep', mock.Mock())
+  def testChargeDeviceToLevel(self):
+    with self.assertCalls(
+        (self.call.battery.SetCharging(True)),
+        (self.call.battery.GetBatteryInfo(), {'level': '50'}),
+        (self.call.battery.GetBatteryInfo(), {'level': '100'})):
+      self.battery.ChargeDeviceToLevel(95)
+
+
 if __name__ == '__main__':
   logging.getLogger().setLevel(logging.DEBUG)
   unittest.main(verbosity=2)