[Android] Convert battery utilities to DeviceUtils.

build/android/pylib/device/device_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 device_utils.py (mostly DeviceUtils).
 """
 
 # pylint: disable=C0321
@@ skipping 1364 matching lines @@
             'Rss': 101,
             'Pss': 102,
             'Shared_Clean': 103,
             'Shared_Dirty': 104,
             'Private_Clean': 105,
             'Private_Dirty': 106,
           },
           self.device.GetMemoryUsageForPid(4321))
 
 
+class DeviceUtilsGetBatteryInfoTest(DeviceUtilsTest):
+  def testGetBatteryInfo_normal(self):
+    with self.assertCall(
+        self.call.device.RunShellCommand(
+            ['dumpsys', 'battery'], check_return=True),
+        [
+          'Current Battery Service state:',
+          '  AC powered: false',
+          '  USB powered: true',
+          '  level: 100',
+          '  temperature: 321',
+        ]):
+      self.assertEquals(
+          {
+            'AC powered': 'false',
+            'USB powered': 'true',
+            'level': '100',
+            'temperature': '321',
+          },
+          self.device.GetBatteryInfo())
+
+
+  def testGetBatteryInfo_nothing(self):
+    with self.assertCall(
+        self.call.device.RunShellCommand(
+            ['dumpsys', 'battery'], check_return=True), []):
+      self.assertEquals({}, self.device.GetBatteryInfo())
+
+
+class DeviceUtilsGetUsbChargingTest(DeviceUtilsTest):
+  def testGetUsbCharging_true(self):
+    with self.assertCall(
+        self.call.device.GetBatteryInfo(), {'USB powered': 'true'}):
+      self.assertTrue(self.device.GetUsbCharging())
+
+  def testGetUsbCharging_false(self):
+    with self.assertCall(
+        self.call.device.GetBatteryInfo(), {'USB powered': 'false'}):
+      self.assertFalse(self.device.GetUsbCharging())
+
+  def testGetUsbCharging_unknown(self):
+    with self.assertCall(
+        self.call.device.GetBatteryInfo(), {'AC powered': 'true'}):
+      self.assertFalse(self.device.GetUsbCharging())
+
+
+class DeviceUtilsSetUsbChargingTest(DeviceUtilsTest):
+
+  @mock.patch('time.sleep', mock.Mock())
+  def testSetUsbCharging_enabled(self):
+    with self.assertCalls(
+        (self.call.device.FileExists(mock.ANY), True),
+        (self.call.device.RunShellCommand(mock.ANY), []),
+        (self.call.device.GetUsbCharging(), False),
+        (self.call.device.RunShellCommand(mock.ANY), []),
+        (self.call.device.GetUsbCharging(), True)):
+      self.device.SetUsbCharging(True)
+
+  def testSetUsbCharging_alreadyEnabled(self):
+    with self.assertCalls(
+        (self.call.device.FileExists(mock.ANY), True),
+        (self.call.device.RunShellCommand(mock.ANY), []),
+        (self.call.device.GetUsbCharging(), True)):
+      self.device.SetUsbCharging(True)
+
+  @mock.patch('time.sleep', mock.Mock())
+  def testSetUsbCharging_disabled(self):
+    with self.assertCalls(
+        (self.call.device.FileExists(mock.ANY), True),
+        (self.call.device.RunShellCommand(mock.ANY), []),
+        (self.call.device.GetUsbCharging(), True),
+        (self.call.device.RunShellCommand(mock.ANY), []),
+        (self.call.device.GetUsbCharging(), False)):
+      self.device.SetUsbCharging(False)
+
+
+
 class DeviceUtilsStrTest(DeviceUtilsTest):
 
   def testStr_returnsSerial(self):
     with self.assertCalls(
         (self.call.adb.GetDeviceSerial(), '0123456789abcdef')):
       self.assertEqual('0123456789abcdef', str(self.device))
 
 
 class DeviceUtilsParallelTest(mock_calls.TestCase):
 
@@ skipping 13 matching lines @@
     with self.assertCall(
         mock.call.pylib.device.adb_wrapper.AdbWrapper.GetDevices(), []):
       with self.assertRaises(device_errors.NoDevicesError):
         device_utils.DeviceUtils.parallel()
 
 
 if __name__ == '__main__':
   logging.getLogger().setLevel(logging.DEBUG)
   unittest.main(verbosity=2)