Add a snapshot of flutter/engine/src/build to our sdk

build/android/pylib/device/device_utils_device_test.py

Index: build/android/pylib/device/device_utils_device_test.py
diff --git a/build/android/pylib/device/device_utils_device_test.py b/build/android/pylib/device/device_utils_device_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..daae2b65fbf33d2aeda673d86e40e2caf330d1ec
--- /dev/null
+++ b/build/android/pylib/device/device_utils_device_test.py
@@ -0,0 +1,211 @@
+#!/usr/bin/env python
+# Copyright 2015 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).
+The test will invoke real devices
+"""
+
+import os
+import tempfile
+import unittest
+
+from pylib import cmd_helper
+from pylib import constants
+from pylib.device import adb_wrapper
+from pylib.device import device_utils
+from pylib.utils import md5sum
+
+_OLD_CONTENTS = "foo"
+_NEW_CONTENTS = "bar"
+_DEVICE_DIR = "/data/local/tmp/device_utils_test"
+_SUB_DIR = "sub"
+_SUB_DIR1 = "sub1"
+_SUB_DIR2 = "sub2"
+
+class DeviceUtilsPushDeleteFilesTest(unittest.TestCase):
+
+  def setUp(self):
+    devices = adb_wrapper.AdbWrapper.Devices()
+    assert devices, 'A device must be attached'
+    self.adb = devices[0]
+    self.adb.WaitForDevice()
+    self.device = device_utils.DeviceUtils(
+        self.adb, default_timeout=10, default_retries=0)
+    default_build_type = os.environ.get('BUILDTYPE', 'Debug')
+    constants.SetBuildType(default_build_type)
+
+  @staticmethod
+  def _MakeTempFile(contents):
+    """Make a temporary file with the given contents.
+
+    Args:
+      contents: string to write to the temporary file.
+
+    Returns:
+      the tuple contains the absolute path to the file and the file name
+    """
+    fi, path = tempfile.mkstemp(text=True)
+    with os.fdopen(fi, 'w') as f:
+      f.write(contents)
+    file_name = os.path.basename(path)
+    return (path, file_name)
+
+  @staticmethod
+  def _MakeTempFileGivenDir(directory, contents):
+    """Make a temporary file under the given directory
+    with the given contents
+
+    Args:
+      directory: the temp directory to create the file
+      contents: string to write to the temp file
+
+    Returns:
+      the list contains the absolute path to the file and the file name
+    """
+    fi, path = tempfile.mkstemp(dir=directory, text=True)
+    with os.fdopen(fi, 'w') as f:
+      f.write(contents)
+    file_name = os.path.basename(path)
+    return (path, file_name)
+
+  @staticmethod
+  def _ChangeTempFile(path, contents):
+    with os.open(path, 'w') as f:
+      f.write(contents)
+
+  @staticmethod
+  def _DeleteTempFile(path):
+    os.remove(path)
+
+  def testPushChangedFiles_noFileChange(self):
+    (host_file_path, file_name) = self._MakeTempFile(_OLD_CONTENTS)
+    device_file_path = "%s/%s" % (_DEVICE_DIR, file_name)
+    self.adb.Push(host_file_path, device_file_path)
+    self.device.PushChangedFiles([(host_file_path, device_file_path)])
+    result = self.device.RunShellCommand(['cat', device_file_path],
+                                         single_line=True)
+    self.assertEqual(_OLD_CONTENTS, result)
+
+    cmd_helper.RunCmd(['rm', host_file_path])
+    self.device.RunShellCommand(['rm', '-rf',  _DEVICE_DIR])
+
+  def testPushChangedFiles_singleFileChange(self):
+    (host_file_path, file_name) = self._MakeTempFile(_OLD_CONTENTS)
+    device_file_path = "%s/%s" % (_DEVICE_DIR, file_name)
+    self.adb.Push(host_file_path, device_file_path)
+
+    with open(host_file_path, 'w') as f:
+      f.write(_NEW_CONTENTS)
+    self.device.PushChangedFiles([(host_file_path, device_file_path)])
+    result = self.device.RunShellCommand(['cat', device_file_path],
+                                         single_line=True)
+    self.assertEqual(_NEW_CONTENTS, result)
+
+    cmd_helper.RunCmd(['rm', host_file_path])
+    self.device.RunShellCommand(['rm', '-rf',  _DEVICE_DIR])
+
+  def testDeleteFiles(self):
+    host_tmp_dir = tempfile.mkdtemp()
+    (host_file_path, file_name) = self._MakeTempFileGivenDir(
+        host_tmp_dir, _OLD_CONTENTS)
+
+    device_file_path = "%s/%s" % (_DEVICE_DIR, file_name)
+    self.adb.Push(host_file_path, device_file_path)
+
+    cmd_helper.RunCmd(['rm', host_file_path])
+    self.device.PushChangedFiles([(host_tmp_dir, _DEVICE_DIR)],
+                                 delete_device_stale=True)
+    result = self.device.RunShellCommand(['ls', _DEVICE_DIR], single_line=True)
+    self.assertEqual('', result)
+
+    cmd_helper.RunCmd(['rm', '-rf', host_tmp_dir])
+    self.device.RunShellCommand(['rm', '-rf',  _DEVICE_DIR])
+
+  def testPushAndDeleteFiles_noSubDir(self):
+    host_tmp_dir = tempfile.mkdtemp()
+    (host_file_path1, file_name1) = self._MakeTempFileGivenDir(
+        host_tmp_dir, _OLD_CONTENTS)
+    (host_file_path2, file_name2) = self._MakeTempFileGivenDir(
+        host_tmp_dir, _OLD_CONTENTS)
+
+    device_file_path1 = "%s/%s" % (_DEVICE_DIR, file_name1)
+    device_file_path2 = "%s/%s" % (_DEVICE_DIR, file_name2)
+    self.adb.Push(host_file_path1, device_file_path1)
+    self.adb.Push(host_file_path2, device_file_path2)
+
+    with open(host_file_path1, 'w') as f:
+      f.write(_NEW_CONTENTS)
+    cmd_helper.RunCmd(['rm', host_file_path2])
+
+    self.device.PushChangedFiles([(host_tmp_dir, _DEVICE_DIR)],
+                                   delete_device_stale=True)
+    result = self.device.RunShellCommand(['cat', device_file_path1],
+                                         single_line=True)
+    self.assertEqual(_NEW_CONTENTS, result)
+    result = self.device.RunShellCommand(['ls', _DEVICE_DIR], single_line=True)
+    self.assertEqual(file_name1, result)
+
+    self.device.RunShellCommand(['rm', '-rf',  _DEVICE_DIR])
+    cmd_helper.RunCmd(['rm', '-rf', host_tmp_dir])
+
+  def testPushAndDeleteFiles_SubDir(self):
+    host_tmp_dir = tempfile.mkdtemp()
+    host_sub_dir1 = "%s/%s" % (host_tmp_dir, _SUB_DIR1)
+    host_sub_dir2 = "%s/%s/%s" % (host_tmp_dir, _SUB_DIR, _SUB_DIR2)
+    cmd_helper.RunCmd(['mkdir', '-p', host_sub_dir1])
+    cmd_helper.RunCmd(['mkdir', '-p', host_sub_dir2])
+
+    (host_file_path1, file_name1) = self._MakeTempFileGivenDir(
+        host_tmp_dir, _OLD_CONTENTS)
+    (host_file_path2, file_name2) = self._MakeTempFileGivenDir(
+        host_tmp_dir, _OLD_CONTENTS)
+    (host_file_path3, file_name3) = self._MakeTempFileGivenDir(
+        host_sub_dir1, _OLD_CONTENTS)
+    (host_file_path4, file_name4) = self._MakeTempFileGivenDir(
+        host_sub_dir2, _OLD_CONTENTS)
+
+    device_file_path1 = "%s/%s" % (_DEVICE_DIR, file_name1)
+    device_file_path2 = "%s/%s" % (_DEVICE_DIR, file_name2)
+    device_file_path3 = "%s/%s/%s" % (_DEVICE_DIR, _SUB_DIR1, file_name3)
+    device_file_path4 = "%s/%s/%s/%s" % (_DEVICE_DIR, _SUB_DIR,
+                                         _SUB_DIR2, file_name4)
+
+    self.adb.Push(host_file_path1, device_file_path1)
+    self.adb.Push(host_file_path2, device_file_path2)
+    self.adb.Push(host_file_path3, device_file_path3)
+    self.adb.Push(host_file_path4, device_file_path4)
+
+    with open(host_file_path1, 'w') as f:
+      f.write(_NEW_CONTENTS)
+    cmd_helper.RunCmd(['rm', host_file_path2])
+    cmd_helper.RunCmd(['rm', host_file_path4])
+
+    self.device.PushChangedFiles([(host_tmp_dir, _DEVICE_DIR)],
+                                   delete_device_stale=True)
+    result = self.device.RunShellCommand(['cat', device_file_path1],
+                                         single_line=True)
+    self.assertEqual(_NEW_CONTENTS, result)
+
+    result = self.device.RunShellCommand(['ls', _DEVICE_DIR])
+    self.assertIn(file_name1, result)
+    self.assertIn(_SUB_DIR1, result)
+    self.assertIn(_SUB_DIR, result)
+    self.assertEqual(3, len(result))
+
+    result = self.device.RunShellCommand(['cat', device_file_path3],
+                                      single_line=True)
+    self.assertEqual(_OLD_CONTENTS, result)
+
+    result = self.device.RunShellCommand(["ls", "%s/%s/%s"
+                                          % (_DEVICE_DIR, _SUB_DIR, _SUB_DIR2)],
+                                         single_line=True)
+    self.assertEqual('', result)
+
+    self.device.RunShellCommand(['rm', '-rf',  _DEVICE_DIR])
+    cmd_helper.RunCmd(['rm', '-rf', host_tmp_dir])
+
+if __name__ == '__main__':
+  unittest.main()