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      1 #!/usr/bin/env python
      2 
      3 # Copyright 2013 The Chromium Authors. All rights reserved.
      4 # Use of this source code is governed by a BSD-style license that can be
      5 # found in the LICENSE file.
      6 
      7 """Tests for the AdbWrapper class."""
      8 
      9 import os
     10 import tempfile
     11 import time
     12 import unittest
     13 
     14 from devil.android import device_errors
     15 from devil.android.sdk import adb_wrapper
     16 
     17 
     18 class TestAdbWrapper(unittest.TestCase):
     19 
     20   def setUp(self):
     21     devices = adb_wrapper.AdbWrapper.Devices()
     22     assert devices, 'A device must be attached'
     23     self._adb = devices[0]
     24     self._adb.WaitForDevice()
     25 
     26   @staticmethod
     27   def _MakeTempFile(contents):
     28     """Make a temporary file with the given contents.
     29 
     30     Args:
     31       contents: string to write to the temporary file.
     32 
     33     Returns:
     34       The absolute path to the file.
     35     """
     36     fi, path = tempfile.mkstemp()
     37     with os.fdopen(fi, 'wb') as f:
     38       f.write(contents)
     39     return path
     40 
     41   def testShell(self):
     42     output = self._adb.Shell('echo test', expect_status=0)
     43     self.assertEqual(output.strip(), 'test')
     44     output = self._adb.Shell('echo test')
     45     self.assertEqual(output.strip(), 'test')
     46     with self.assertRaises(device_errors.AdbCommandFailedError):
     47       self._adb.Shell('echo test', expect_status=1)
     48 
     49   def testPersistentShell(self):
     50     # We need to access the device serial number here in order
     51     # to create the persistent shell.
     52     serial = self._adb.device_serial # pylint: disable=protected-access
     53     with self._adb.PersistentShell(serial) as pshell:
     54       (res1, code1) = pshell.RunCommand('echo TEST')
     55       (res2, code2) = pshell.RunCommand('echo TEST2')
     56       self.assertEqual(len(res1), 1)
     57       self.assertEqual(len(res2), 2)
     58       self.assertEqual(res1[0], 'TEST')
     59       self.assertEqual(res2[0], '')
     60       self.assertEqual(res2[1], 'TEST2')
     61       self.assertEqual(code1, 0)
     62       self.assertEqual(code2, 0)
     63 
     64   def testPushLsPull(self):
     65     path = self._MakeTempFile('foo')
     66     device_path = '/data/local/tmp/testfile.txt'
     67     local_tmpdir = os.path.dirname(path)
     68     self._adb.Push(path, device_path)
     69     files = dict(self._adb.Ls('/data/local/tmp'))
     70     self.assertTrue('testfile.txt' in files)
     71     self.assertEquals(3, files['testfile.txt'].st_size)
     72     self.assertEqual(self._adb.Shell('cat %s' % device_path), 'foo')
     73     self._adb.Pull(device_path, local_tmpdir)
     74     with open(os.path.join(local_tmpdir, 'testfile.txt'), 'r') as f:
     75       self.assertEqual(f.read(), 'foo')
     76 
     77   def testInstall(self):
     78     path = self._MakeTempFile('foo')
     79     with self.assertRaises(device_errors.AdbCommandFailedError):
     80       self._adb.Install(path)
     81 
     82   def testForward(self):
     83     with self.assertRaises(device_errors.AdbCommandFailedError):
     84       self._adb.Forward(0, 0)
     85 
     86   def testUninstall(self):
     87     with self.assertRaises(device_errors.AdbCommandFailedError):
     88       self._adb.Uninstall('some.nonexistant.package')
     89 
     90   def testRebootWaitForDevice(self):
     91     self._adb.Reboot()
     92     print 'waiting for device to reboot...'
     93     while self._adb.GetState() == 'device':
     94       time.sleep(1)
     95     self._adb.WaitForDevice()
     96     self.assertEqual(self._adb.GetState(), 'device')
     97     print 'waiting for package manager...'
     98     while 'package:' not in self._adb.Shell('pm path android'):
     99       time.sleep(1)
    100 
    101   def testRootRemount(self):
    102     self._adb.Root()
    103     while True:
    104       try:
    105         self._adb.Shell('start')
    106         break
    107       except device_errors.AdbCommandFailedError:
    108         time.sleep(1)
    109     self._adb.Remount()
    110 
    111 
    112 if __name__ == '__main__':
    113   unittest.main()
    114