[android] Adds AdbWrapper which is the base of the eventual AndroidCommands replacement.

build/android/pylib/device/adb_wrapper_test.py

Index: build/android/pylib/device/adb_wrapper_test.py
diff --git a/build/android/pylib/device/adb_wrapper_test.py b/build/android/pylib/device/adb_wrapper_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..14077f81da19672b20edc5d04099ab1446578c89
--- /dev/null
+++ b/build/android/pylib/device/adb_wrapper_test.py
@@ -0,0 +1,92 @@
+# Copyright (c) 2013 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.
+
+"""Tests for the AdbWrapper class."""
+
+import os
+import socket
+import tempfile
+import time
+import unittest
+
+import adb_wrapper
+
+
+class TestAdbWrapper(unittest.TestCase):
+
+  def setUp(self):
+    devices = adb_wrapper.AdbWrapper.GetDevices()
+    assert devices, 'A device must be attached'
+    self._adb = devices[0]
+    self._adb.WaitForDevice()
+
+  def _MakeTempFile(self, contents):
+    """Make a temporary file with the given contents.
+    
+    Args:
+      contents: string to write to the temporary file.
+
+    Returns:
+      The absolute path to the file.
+    """
+    fi, path = tempfile.mkstemp()
+    with os.fdopen(fi, 'wb') as f:
+      f.write('foo')
+    return path
+
+  def testShell(self):
+    output = self._adb.Shell('echo test', expect_rc=0)

[frankf, 2013/11/27 23:35:03]

also test the failure case

[craigdh, 2013/11/28 00:51:55]

Done.

+    self.assertEqual(output.strip(), 'test')
+    output = self._adb.Shell('echo test')
+    self.assertEqual(output.strip(), 'test')
+
+  def testPushPull(self):
+    path = self._MakeTempFile('foo')
+    device_path = '/data/local/tmp/testfile.txt'
+    local_tmpdir = os.path.dirname(path)
+    self._adb.Push(path, device_path)
+    self.assertEqual(self._adb.Shell('cat %s' % device_path), 'foo')
+    self._adb.Pull(device_path, local_tmpdir)
+    with open(os.path.join(local_tmpdir, 'testfile.txt'), 'r') as f:
+      self.assertEqual(f.read(), 'foo')
+
+  def testInstall(self):
+    path = self._MakeTempFile('foo')
+    self.assertRaises(adb_wrapper.CommandFailedError, self._adb.Install, path)
+
+  def testForward(self):
+    self.assertRaises(adb_wrapper.CommandFailedError, self._adb.Forward, 0, 0)
+
+  def testLogcat(self):
+    self.assertRaises(adb_wrapper.CommandTimeoutError, self._adb.Logcat,

[frankf, 2013/11/27 23:35:03]

I'd remove this test case

[craigdh, 2013/11/28 00:51:55]

Done.

+        timeout=0.1, retries=0)
+
+  def testUninstall(self):
+    self.assertRaises(adb_wrapper.CommandFailedError, self._adb.Uninstall,
+        'some.nonexistant.package')
+
+  def testRebootWaitForDevice(self):
+    self._adb.Reboot()
+    print 'waiting for device to reboot...'
+    while self._adb.GetState() == 'device':
+      time.sleep(1)
+    self._adb.WaitForDevice()
+    self.assertEqual(self._adb.GetState(), 'device')
+    print 'waiting for package manager...'
+    while 'package:' not in self._adb.Shell('pm path android'):
+      time.sleep(1)
+
+  def testRootRemount(self):
+    self._adb.Root()
+    while True:
+      try:
+        self._adb.Shell('start')
+        break
+      except adb_wrapper.CommandFailedError:
+        time.sleep(1)
+    self._adb.Remount()
+
+
+if __name__ == '__main__':
+  unittest.main()