Revert of [Telemetry] Remove adb_commands usage from android_device.

tools/telemetry/telemetry/core/platform/android_device_unittest.py

Index: tools/telemetry/telemetry/core/platform/android_device_unittest.py
diff --git a/tools/telemetry/telemetry/core/platform/android_device_unittest.py b/tools/telemetry/telemetry/core/platform/android_device_unittest.py
index d83ee3d8080374838f13395839a5554ba843c16c..b8a61dd7195aa7b0060420dafdd8f4c854ec42c8 100644
--- a/tools/telemetry/telemetry/core/platform/android_device_unittest.py
+++ b/tools/telemetry/telemetry/core/platform/android_device_unittest.py
@@ -5,121 +5,135 @@
 import unittest
 
 from telemetry.core import browser_options
-from telemetry.core import util
 from telemetry.core.platform import android_device
+from telemetry.core.platform import android_platform_backend
 from telemetry.unittest_util import system_stub
 
-util.AddDirToPythonPath(util.GetChromiumSrcDir(), 'build', 'android')
-from pylib.device import device_utils # pylint: disable=import-error
 
-util.AddDirToPythonPath(util.GetTelemetryDir(), 'third_party', 'mock')
-import mock # pylint: disable=import-error
+class AndroidDeviceTest(unittest.TestCase):
+  def setUp(self):
+    self._android_device_stub = system_stub.Override(
+        android_device, ['adb_commands'])
 
-
-class _BaseAndroidDeviceTest(unittest.TestCase):
-  def setUp(self):
-    self._healthy_device_patcher = mock.patch(
-        'pylib.device.device_utils.DeviceUtils.HealthyDevices')
-    self._healthy_device_mock = self._healthy_device_patcher.start()
-    self._android_device_stub = system_stub.Override(
-        android_device, ['subprocess', 'logging'])
+  def testGetAllAttachedAndroidDevices(self):
+    self._android_device_stub.adb_commands.attached_devices = [
+        '01', '02']
+    self.assertEquals(
+        set(['01', '02']),
+        set(device.device_id for device in
+            android_device.AndroidDevice.GetAllConnectedDevices()
+        ))
 
   def tearDown(self):
-    self._healthy_device_patcher.stop()
     self._android_device_stub.Restore()
 
 
-class AndroidDeviceTest(_BaseAndroidDeviceTest):
-  def testGetAllAttachedAndroidDevices(self):
-    self._healthy_device_mock.return_value = [
-        device_utils.DeviceUtils('01'), device_utils.DeviceUtils('02')]
-    self.assertEquals(
-        set(['01', '02']),
-        set(device.device_id for device in
-            android_device.AndroidDevice.GetAllConnectedDevices()))
+class GetDeviceTest(unittest.TestCase):
+  def setUp(self):
+    self._android_device_stub = system_stub.Override(
+        android_device, ['adb_commands', 'os', 'subprocess', 'logging'])
+    self._apb_stub = system_stub.Override(
+        android_platform_backend, ['adb_commands'])
+
+  def tearDown(self):
+    self._android_device_stub.Restore()
+    self._apb_stub.Restore()
 
   def testNoAdbReturnsNone(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with (
-        mock.patch('os.path.isabs', return_value=True)), (
-        mock.patch('os.path.exists', return_value=False)):
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertIsNone(android_device.GetDevice(finder_options))
+
+    def NoAdb(*_1, **_2):
+      raise OSError('not found')
+    self._android_device_stub.subprocess.Popen = NoAdb
+
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertIsNone(android_device.GetDevice(finder_options))
 
   def testAdbNoDevicesReturnsNone(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = []
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertIsNone(android_device.GetDevice(finder_options))
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertIsNone(android_device.GetDevice(finder_options))
+
+  def testAdbPermissionsErrorReturnsNone(self):
+    finder_options = browser_options.BrowserFinderOptions()
+    self._android_device_stub.subprocess.Popen.communicate_result = (
+        'List of devices attached\n????????????\tno permissions\n',
+        '* daemon not running. starting it now on port 5037 *\n'
+        '* daemon started successfully *\n')
+    device = android_device.GetDevice(finder_options)
+    self.assertEquals([
+        'adb devices gave a permissions error. Consider running adb as root:',
+        '  adb kill-server',
+        '  sudo `which adb` devices\n\n'],
+        self._android_device_stub.logging.warnings)
+    self.assertIsNone(device)
 
   def testAdbTwoDevicesReturnsNone(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = [
-          device_utils.DeviceUtils('015d14fec128220c'),
-          device_utils.DeviceUtils('015d14fec128220d')]
-      device = android_device.GetDevice(finder_options)
-      self.assertEquals([
-          'Multiple devices attached. Please specify one of the following:\n'
-          '  --device=015d14fec128220c\n'
-          '  --device=015d14fec128220d'],
-          self._android_device_stub.logging.warnings)
-      self.assertIsNone(device)
+    self._android_device_stub.adb_commands.attached_devices = [
+        '015d14fec128220c', '015d14fec128220d']
+    device = android_device.GetDevice(finder_options)
+    self.assertEquals([
+        'Multiple devices attached. Please specify one of the following:\n'
+        '  --device=015d14fec128220c\n'
+        '  --device=015d14fec128220d'],
+        self._android_device_stub.logging.warnings)
+    self.assertIsNone(device)
 
   def testAdbPickOneDeviceReturnsDeviceInstance(self):
     finder_options = browser_options.BrowserFinderOptions()
     finder_options.device = '555d14fecddddddd'  # pick one
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = [
-          device_utils.DeviceUtils('015d14fec128220c'),
-          device_utils.DeviceUtils('555d14fecddddddd')]
-      device = android_device.GetDevice(finder_options)
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertEquals('555d14fecddddddd', device.device_id)
+    self._android_device_stub.adb_commands.attached_devices = [
+        '015d14fec128220c', '555d14fecddddddd']
+    device = android_device.GetDevice(finder_options)
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertEquals('555d14fecddddddd', device.device_id)
 
   def testAdbOneDeviceReturnsDeviceInstance(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = [
-          device_utils.DeviceUtils('015d14fec128220c')]
-      device = android_device.GetDevice(finder_options)
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertEquals('015d14fec128220c', device.device_id)
+    self._android_device_stub.adb_commands.attached_devices = (
+        ['015d14fec128220c'])
+    device = android_device.GetDevice(finder_options)
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertEquals('015d14fec128220c', device.device_id)
 
 
-class FindAllAvailableDevicesTest(_BaseAndroidDeviceTest):
+class FindAllAvailableDevicesTest(unittest.TestCase):
+  def setUp(self):
+    self._android_device_stub = system_stub.Override(
+        android_device, ['adb_commands', 'os', 'subprocess', 'logging'])
+    self._apb_stub = system_stub.Override(
+        android_platform_backend, ['adb_commands'])
+
+  def tearDown(self):
+    self._android_device_stub.Restore()
+    self._apb_stub.Restore()
+
   def testAdbNoDeviceReturnsEmptyList(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = []
-      devices = android_device.FindAllAvailableDevices(finder_options)
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertIsNotNone(devices)
-      self.assertEquals(len(devices), 0)
+    devices = android_device.FindAllAvailableDevices(finder_options)
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertIsNotNone(devices)
+    self.assertEquals(len(devices), 0)
 
   def testAdbOneDeviceReturnsListWithOneDeviceInstance(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = [
-          device_utils.DeviceUtils('015d14fec128220c')]
-      devices = android_device.FindAllAvailableDevices(finder_options)
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertIsNotNone(devices)
-      self.assertEquals(len(devices), 1)
-      self.assertEquals('015d14fec128220c', devices[0].device_id)
+    self._android_device_stub.adb_commands.attached_devices = (
+        ['015d14fec128220c'])
+    devices = android_device.FindAllAvailableDevices(finder_options)
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertIsNotNone(devices)
+    self.assertEquals(len(devices), 1)
+    self.assertEquals('015d14fec128220c', devices[0].device_id)
 
   def testAdbMultipleDevicesReturnsListWithAllDeviceInstances(self):
     finder_options = browser_options.BrowserFinderOptions()
-    with mock.patch('os.path.isabs', return_value=False):
-      self._healthy_device_mock.return_value = [
-          device_utils.DeviceUtils('015d14fec128220c'),
-          device_utils.DeviceUtils('015d14fec128220d'),
-          device_utils.DeviceUtils('015d14fec128220e')]
-      devices = android_device.FindAllAvailableDevices(finder_options)
-      self.assertEquals([], self._android_device_stub.logging.warnings)
-      self.assertIsNotNone(devices)
-      self.assertEquals(len(devices), 3)
-      self.assertEquals(devices[0].guid, '015d14fec128220c')
-      self.assertEquals(devices[1].guid, '015d14fec128220d')
-      self.assertEquals(devices[2].guid, '015d14fec128220e')
+    self._android_device_stub.adb_commands.attached_devices = [
+        '015d14fec128220c', '015d14fec128220d', '015d14fec128220e']
+    devices = android_device.FindAllAvailableDevices(finder_options)
+    self.assertEquals([], self._android_device_stub.logging.warnings)
+    self.assertIsNotNone(devices)
+    self.assertEquals(len(devices), 3)
+    self.assertEquals(devices[0].guid, '015d14fec128220c')
+    self.assertEquals(devices[1].guid, '015d14fec128220d')
+    self.assertEquals(devices[2].guid, '015d14fec128220e')