text: #!/usr/bin/env python
  # -*- coding: UTF-8 -*
  
  # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  """Windows specific tests."""
  
  import errno
  import glob
  import os
  import platform
  import signal
  import subprocess
  import sys
  import time
  import traceback
  
  try:
      import wmi  # requires "pip install wmi"
  except ImportError:
      wmi = None
  try:
      import win32api  # requires "pip install pypiwin32"
      import win32con
  except ImportError:
      win32api = win32con = None
  
  import psutil
  from psutil import WINDOWS
  from psutil._compat import basestring
  from psutil._compat import callable
  from psutil._compat import long
  from psutil._compat import PY3
  from psutil.tests import APPVEYOR
  from psutil.tests import get_test_subprocess
  from psutil.tests import mock
  from psutil.tests import reap_children
  from psutil.tests import retry_before_failing
  from psutil.tests import run_test_module_by_name
  from psutil.tests import unittest
  
  
  cext = psutil._psplatform.cext
  
  # are we a 64 bit process
  IS_64_BIT = sys.maxsize > 2**32
  
  
  def wrap_exceptions(fun):
      def wrapper(self, *args, **kwargs):
          try:
              return fun(self, *args, **kwargs)
          except OSError as err:
              from psutil._pswindows import ACCESS_DENIED_SET
              if err.errno in ACCESS_DENIED_SET:
                  raise psutil.AccessDenied(None, None)
              if err.errno == errno.ESRCH:
                  raise psutil.NoSuchProcess(None, None)
              raise
      return wrapper
  
  
  @unittest.skipUnless(WINDOWS, "not a Windows system")
  class WindowsSpecificTestCase(unittest.TestCase):
  
      @classmethod
      def setUpClass(cls):
          cls.pid = get_test_subprocess().pid
  
      @classmethod
      def tearDownClass(cls):
          reap_children()
  
      def test_issue_24(self):
          p = psutil.Process(0)
          self.assertRaises(psutil.AccessDenied, p.kill)
  
      def test_special_pid(self):
          p = psutil.Process(4)
          self.assertEqual(p.name(), 'System')
          # use __str__ to access all common Process properties to check
          # that nothing strange happens
          str(p)
          p.username()
          self.assertTrue(p.create_time() >= 0.0)
          try:
              rss, vms = p.memory_info()[:2]
          except psutil.AccessDenied:
              # expected on Windows Vista and Windows 7
              if not platform.uname()[1] in ('vista', 'win-7', 'win7'):
                  raise
          else:
              self.assertTrue(rss > 0)
  
      def test_send_signal(self):
          p = psutil.Process(self.pid)
          self.assertRaises(ValueError, p.send_signal, signal.SIGINT)
  
      def test_nic_names(self):
          p = subprocess.Popen(['ipconfig', '/all'], stdout=subprocess.PIPE)
          out = p.communicate()[0]
          if PY3:
              out = str(out, sys.stdout.encoding or sys.getfilesystemencoding())
          nics = psutil.net_io_counters(pernic=True).keys()
          for nic in nics:
              if "pseudo-interface" in nic.replace(' ', '-').lower():
                  continue
              if nic not in out:
                  self.fail(
                      "%r nic wasn't found in 'ipconfig /all' output" % nic)
  
      def test_exe(self):
          for p in psutil.process_iter():
              try:
                  self.assertEqual(os.path.basename(p.exe()), p.name())
              except psutil.Error:
                  pass
  
      # --- Process class tests
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_name(self):
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          self.assertEqual(p.name(), w.Caption)
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_exe(self):
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          # Note: wmi reports the exe as a lower case string.
          # Being Windows paths case-insensitive we ignore that.
          self.assertEqual(p.exe().lower(), w.ExecutablePath.lower())
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_cmdline(self):
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          self.assertEqual(' '.join(p.cmdline()),
                           w.CommandLine.replace('"', ''))
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_username(self):
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          domain, _, username = w.GetOwner()
          username = "%s\\%s" % (domain, username)
          self.assertEqual(p.username(), username)
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_rss_memory(self):
          time.sleep(0.1)
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          rss = p.memory_info().rss
          self.assertEqual(rss, int(w.WorkingSetSize))
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_vms_memory(self):
          time.sleep(0.1)
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          vms = p.memory_info().vms
          # http://msdn.microsoft.com/en-us/library/aa394372(VS.85).aspx
          # ...claims that PageFileUsage is represented in Kilo
          # bytes but funnily enough on certain platforms bytes are
          # returned instead.
          wmi_usage = int(w.PageFileUsage)
          if (vms != wmi_usage) and (vms != wmi_usage * 1024):
              self.fail("wmi=%s, psutil=%s" % (wmi_usage, vms))
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_process_create_time(self):
          w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
          p = psutil.Process(self.pid)
          wmic_create = str(w.CreationDate.split('.')[0])
          psutil_create = time.strftime("%Y%m%d%H%M%S",
                                        time.localtime(p.create_time()))
          self.assertEqual(wmic_create, psutil_create)
  
      # --- psutil namespace functions and constants tests
  
      @unittest.skipUnless('NUMBER_OF_PROCESSORS' in os.environ,
                           'NUMBER_OF_PROCESSORS env var is not available')
      def test_cpu_count(self):
          num_cpus = int(os.environ['NUMBER_OF_PROCESSORS'])
          self.assertEqual(num_cpus, psutil.cpu_count())
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_total_phymem(self):
          w = wmi.WMI().Win32_ComputerSystem()[0]
          self.assertEqual(int(w.TotalPhysicalMemory),
                           psutil.virtual_memory().total)
  
      # @unittest.skipIf(wmi is None, "wmi module is not installed")
      # def test__UPTIME(self):
      #     # _UPTIME constant is not public but it is used internally
      #     # as value to return for pid 0 creation time.
      #     # WMI behaves the same.
      #     w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0]
      #     p = psutil.Process(0)
      #     wmic_create = str(w.CreationDate.split('.')[0])
      #     psutil_create = time.strftime("%Y%m%d%H%M%S",
      #                                   time.localtime(p.create_time()))
      #
  
      # Note: this test is not very reliable
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      @unittest.skipIf(APPVEYOR, "test not relieable on appveyor")
      def test_pids(self):
          # Note: this test might fail if the OS is starting/killing
          # other processes in the meantime
          w = wmi.WMI().Win32_Process()
          wmi_pids = set([x.ProcessId for x in w])
          psutil_pids = set(psutil.pids())
          self.assertEqual(wmi_pids, psutil_pids)
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      @retry_before_failing()
      def test_disks(self):
          ps_parts = psutil.disk_partitions(all=True)
          wmi_parts = wmi.WMI().Win32_LogicalDisk()
          for ps_part in ps_parts:
              for wmi_part in wmi_parts:
                  if ps_part.device.replace('\\', '') == wmi_part.DeviceID:
                      if not ps_part.mountpoint:
                          # this is usually a CD-ROM with no disk inserted
                          break
                      try:
                          usage = psutil.disk_usage(ps_part.mountpoint)
                      except OSError as err:
                          if err.errno == errno.ENOENT:
                              # usually this is the floppy
                              break
                          else:
                              raise
                      self.assertEqual(usage.total, int(wmi_part.Size))
                      wmi_free = int(wmi_part.FreeSpace)
                      self.assertEqual(usage.free, wmi_free)
                      # 10 MB tollerance
                      if abs(usage.free - wmi_free) > 10 * 1024 * 1024:
                          self.fail("psutil=%s, wmi=%s" % (
                              usage.free, wmi_free))
                      break
              else:
                  self.fail("can't find partition %s" % repr(ps_part))
  
      @unittest.skipIf(win32api is None, "pywin32 module is not installed")
      def test_num_handles(self):
          p = psutil.Process(os.getpid())
          before = p.num_handles()
          handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION,
                                        win32con.FALSE, os.getpid())
          after = p.num_handles()
          self.assertEqual(after, before + 1)
          win32api.CloseHandle(handle)
          self.assertEqual(p.num_handles(), before)
  
      @unittest.skipIf(win32api is None, "pywin32 module is not installed")
      def test_num_handles_2(self):
          # Note: this fails from time to time; I'm keen on thinking
          # it doesn't mean something is broken
          def call(p, attr):
              attr = getattr(p, name, None)
              if attr is not None and callable(attr):
                  attr()
              else:
                  attr
  
          p = psutil.Process(self.pid)
          failures = []
          for name in dir(psutil.Process):
              if name.startswith('_') \
                  or name in ('terminate', 'kill', 'suspend', 'resume',
                              'nice', 'send_signal', 'wait', 'children',
                              'as_dict'):
                  continue
              else:
                  try:
                      call(p, name)
                      num1 = p.num_handles()
                      call(p, name)
                      num2 = p.num_handles()
                  except (psutil.NoSuchProcess, psutil.AccessDenied):
                      pass
                  else:
                      if num2 > num1:
                          fail = \
                              "failure while processing Process.%s method " \
                              "(before=%s, after=%s)" % (name, num1, num2)
                          failures.append(fail)
          if failures:
              self.fail('\n' + '\n'.join(failures))
  
      def test_name_always_available(self):
          # On Windows name() is never supposed to raise AccessDenied,
          # see https://github.com/giampaolo/psutil/issues/627
          for p in psutil.process_iter():
              try:
                  p.name()
              except psutil.NoSuchProcess:
                  pass
  
      @unittest.skipUnless(sys.version_info >= (2, 7),
                           "CTRL_* signals not supported")
      def test_ctrl_signals(self):
          p = psutil.Process(get_test_subprocess().pid)
          p.send_signal(signal.CTRL_C_EVENT)
          p.send_signal(signal.CTRL_BREAK_EVENT)
          p.kill()
          p.wait()
          self.assertRaises(psutil.NoSuchProcess,
                            p.send_signal, signal.CTRL_C_EVENT)
          self.assertRaises(psutil.NoSuchProcess,
                            p.send_signal, signal.CTRL_BREAK_EVENT)
  
      @unittest.skipIf(wmi is None, "wmi module is not installed")
      def test_net_if_stats(self):
          ps_names = set(cext.net_if_stats())
          wmi_adapters = wmi.WMI().Win32_NetworkAdapter()
          wmi_names = set()
          for wmi_adapter in wmi_adapters:
              wmi_names.add(wmi_adapter.Name)
              wmi_names.add(wmi_adapter.NetConnectionID)
          self.assertTrue(ps_names & wmi_names,
                          "no common entries in %s, %s" % (ps_names, wmi_names))
  
  
  @unittest.skipUnless(WINDOWS, "not a Windows system")
  class TestDualProcessImplementation(unittest.TestCase):
      """
      Certain APIs on Windows have 2 internal implementations, one
      based on documented Windows APIs, another one based
      NtQuerySystemInformation() which gets called as fallback in
      case the first fails because of limited permission error.
      Here we test that the two methods return the exact same value,
      see:
      https://github.com/giampaolo/psutil/issues/304
      """
  
      fun_names = [
          # function name, tolerance
          ('proc_cpu_times', 0.2),
          ('proc_create_time', 0.5),
          ('proc_num_handles', 1),  # 1 because impl #1 opens a handle
          ('proc_memory_info', 1024),  # KB
          ('proc_io_counters', 0),
      ]
  
      def test_compare_values(self):
          def assert_ge_0(obj):
              if isinstance(obj, tuple):
                  for value in obj:
                      self.assertGreaterEqual(value, 0, msg=obj)
              elif isinstance(obj, (int, long, float)):
                  self.assertGreaterEqual(obj, 0)
              else:
                  assert 0  # case not handled which needs to be fixed
  
          def compare_with_tolerance(ret1, ret2, tolerance):
              if ret1 == ret2:
                  return
              else:
                  if isinstance(ret2, (int, long, float)):
                      diff = abs(ret1 - ret2)
                      self.assertLessEqual(diff, tolerance)
                  elif isinstance(ret2, tuple):
                      for a, b in zip(ret1, ret2):
                          diff = abs(a - b)
                          self.assertLessEqual(diff, tolerance)
  
          from psutil._pswindows import ntpinfo
          failures = []
          for p in psutil.process_iter():
              try:
                  nt = ntpinfo(*cext.proc_info(p.pid))
              except psutil.NoSuchProcess:
                  continue
              assert_ge_0(nt)
  
              for name, tolerance in self.fun_names:
                  if name == 'proc_memory_info' and p.pid == os.getpid():
                      continue
                  if name == 'proc_create_time' and p.pid in (0, 4):
                      continue
                  meth = wrap_exceptions(getattr(cext, name))
                  try:
                      ret = meth(p.pid)
                  except (psutil.NoSuchProcess, psutil.AccessDenied):
                      continue
                  # compare values
                  try:
                      if name == 'proc_cpu_times':
                          compare_with_tolerance(ret[0], nt.user_time, tolerance)
                          compare_with_tolerance(ret[1],
                                                 nt.kernel_time, tolerance)
                      elif name == 'proc_create_time':
                          compare_with_tolerance(ret, nt.create_time, tolerance)
                      elif name == 'proc_num_handles':
                          compare_with_tolerance(ret, nt.num_handles, tolerance)
                      elif name == 'proc_io_counters':
                          compare_with_tolerance(ret[0], nt.io_rcount, tolerance)
                          compare_with_tolerance(ret[1], nt.io_wcount, tolerance)
                          compare_with_tolerance(ret[2], nt.io_rbytes, tolerance)
                          compare_with_tolerance(ret[3], nt.io_wbytes, tolerance)
                      elif name == 'proc_memory_info':
                          try:
                              rawtupl = cext.proc_memory_info_2(p.pid)
                          except psutil.NoSuchProcess:
                              continue
                          compare_with_tolerance(ret, rawtupl, tolerance)
                  except AssertionError:
                      trace = traceback.format_exc()
                      msg = '%s\npid=%s, method=%r, ret_1=%r, ret_2=%r' % (
                          trace, p.pid, name, ret, nt)
                      failures.append(msg)
                      break
  
          if failures:
              self.fail('\n\n'.join(failures))
  
      # ---
      # same tests as above but mimicks the AccessDenied failure of
      # the first (fast) method failing with AD.
      # TODO: currently does not take tolerance into account.
  
      def test_name(self):
          name = psutil.Process().name()
          with mock.patch("psutil._psplatform.cext.proc_exe",
                          side_effect=psutil.AccessDenied(os.getpid())) as fun:
              psutil.Process().name() == name
              assert fun.called
  
      def test_memory_info(self):
          mem = psutil.Process().memory_info()
          with mock.patch("psutil._psplatform.cext.proc_memory_info",
                          side_effect=OSError(errno.EPERM, "msg")) as fun:
              psutil.Process().memory_info() == mem
              assert fun.called
  
      def test_create_time(self):
          ctime = psutil.Process().create_time()
          with mock.patch("psutil._psplatform.cext.proc_create_time",
                          side_effect=OSError(errno.EPERM, "msg")) as fun:
              psutil.Process().create_time() == ctime
              assert fun.called
  
      def test_cpu_times(self):
          cpu_times = psutil.Process().cpu_times()
          with mock.patch("psutil._psplatform.cext.proc_cpu_times",
                          side_effect=OSError(errno.EPERM, "msg")) as fun:
              psutil.Process().cpu_times() == cpu_times
              assert fun.called
  
      def test_io_counters(self):
          io_counters = psutil.Process().io_counters()
          with mock.patch("psutil._psplatform.cext.proc_io_counters",
                          side_effect=OSError(errno.EPERM, "msg")) as fun:
              psutil.Process().io_counters() == io_counters
              assert fun.called
  
      def test_num_handles(self):
          io_counters = psutil.Process().io_counters()
          with mock.patch("psutil._psplatform.cext.proc_io_counters",
                          side_effect=OSError(errno.EPERM, "msg")) as fun:
              psutil.Process().io_counters() == io_counters
              assert fun.called
  
      # --- other tests
  
      def test_compare_name_exe(self):
          for p in psutil.process_iter():
              try:
                  a = os.path.basename(p.exe())
                  b = p.name()
              except (psutil.NoSuchProcess, psutil.AccessDenied):
                  pass
              else:
                  self.assertEqual(a, b)
  
      def test_zombies(self):
          # test that NPS is raised by the 2nd implementation in case a
          # process no longer exists
          ZOMBIE_PID = max(psutil.pids()) + 5000
          for name, _ in self.fun_names:
              meth = wrap_exceptions(getattr(cext, name))
              self.assertRaises(psutil.NoSuchProcess, meth, ZOMBIE_PID)
  
  
  @unittest.skipUnless(WINDOWS, "not a Windows system")
  class RemoteProcessTestCase(unittest.TestCase):
      """Certain functions require calling ReadProcessMemory.  This trivially
      works when called on the current process.  Check that this works on other
      processes, especially when they have a different bitness."""
  
      @staticmethod
      def find_other_interpreter():
          # find a python interpreter that is of the opposite bitness from us
          code = "import sys; sys.stdout.write(str(sys.maxsize > 2**32))"
  
          # XXX: a different and probably more stable approach might be to access
          # the registry but accessing 64 bit paths from a 32 bit process
          for filename in glob.glob(r"C:\Python*\python.exe"):
              proc = subprocess.Popen(args=[filename, "-c", code],
                                      stdout=subprocess.PIPE,
                                      stderr=subprocess.STDOUT)
              output, _ = proc.communicate()
              if output == str(not IS_64_BIT):
                  return filename
  
      @classmethod
      def setUpClass(cls):
          other_python = cls.find_other_interpreter()
  
          if other_python is None:
              raise unittest.SkipTest(
                  "could not find interpreter with opposite bitness")
  
          if IS_64_BIT:
              cls.python64 = sys.executable
              cls.python32 = other_python
          else:
              cls.python64 = other_python
              cls.python32 = sys.executable
  
      test_args = ["-c", "import sys; sys.stdin.read()"]
  
      def setUp(self):
          env = os.environ.copy()
          env["THINK_OF_A_NUMBER"] = str(os.getpid())
          self.proc32 = get_test_subprocess([self.python32] + self.test_args,
                                            env=env,
                                            stdin=subprocess.PIPE)
          self.proc64 = get_test_subprocess([self.python64] + self.test_args,
                                            env=env,
                                            stdin=subprocess.PIPE)
  
      def tearDown(self):
          self.proc32.communicate()
          self.proc64.communicate()
          reap_children()
  
      @classmethod
      def tearDownClass(cls):
          reap_children()
  
      def test_cmdline_32(self):
          p = psutil.Process(self.proc32.pid)
          self.assertEqual(len(p.cmdline()), 3)
          self.assertEqual(p.cmdline()[1:], self.test_args)
  
      def test_cmdline_64(self):
          p = psutil.Process(self.proc64.pid)
          self.assertEqual(len(p.cmdline()), 3)
          self.assertEqual(p.cmdline()[1:], self.test_args)
  
      def test_cwd_32(self):
          p = psutil.Process(self.proc32.pid)
          self.assertEqual(p.cwd(), os.getcwd())
  
      def test_cwd_64(self):
          p = psutil.Process(self.proc64.pid)
          self.assertEqual(p.cwd(), os.getcwd())
  
      def test_environ_32(self):
          p = psutil.Process(self.proc32.pid)
          e = p.environ()
          self.assertIn("THINK_OF_A_NUMBER", e)
          self.assertEquals(e["THINK_OF_A_NUMBER"], str(os.getpid()))
  
      def test_environ_64(self):
          p = psutil.Process(self.proc64.pid)
          e = p.environ()
          self.assertIn("THINK_OF_A_NUMBER", e)
          self.assertEquals(e["THINK_OF_A_NUMBER"], str(os.getpid()))
  
  
  @unittest.skipUnless(WINDOWS, "not a Windows system")
  class TestServices(unittest.TestCase):
  
      def test_win_service_iter(self):
          valid_statuses = set([
              "running",
              "paused",
              "start",
              "pause",
              "continue",
              "stop",
              "stopped",
          ])
          valid_start_types = set([
              "automatic",
              "manual",
              "disabled",
          ])
          valid_statuses = set([
              "running",
              "paused",
              "start_pending",
              "pause_pending",
              "continue_pending",
              "stop_pending",
              "stopped"
          ])
          for serv in psutil.win_service_iter():
              data = serv.as_dict()
              self.assertIsInstance(data['name'], basestring)
              self.assertNotEqual(data['name'].strip(), "")
              self.assertIsInstance(data['display_name'], basestring)
              self.assertIsInstance(data['username'], basestring)
              self.assertIn(data['status'], valid_statuses)
              if data['pid'] is not None:
                  psutil.Process(data['pid'])
              self.assertIsInstance(data['binpath'], basestring)
              self.assertIsInstance(data['username'], basestring)
              self.assertIsInstance(data['start_type'], basestring)
              self.assertIn(data['start_type'], valid_start_types)
              self.assertIn(data['status'], valid_statuses)
              self.assertIsInstance(data['description'], basestring)
              pid = serv.pid()
              if pid is not None:
                  p = psutil.Process(pid)
                  self.assertTrue(p.is_running())
              # win_service_get
              s = psutil.win_service_get(serv.name())
              # test __eq__
              self.assertEqual(serv, s)
  
      def test_win_service_get(self):
          name = next(psutil.win_service_iter()).name()
  
          with self.assertRaises(psutil.NoSuchProcess) as cm:
              psutil.win_service_get(name + '???')
          self.assertEqual(cm.exception.name, name + '???')
  
          # test NoSuchProcess
          service = psutil.win_service_get(name)
          exc = WindowsError(
              psutil._psplatform.cext.ERROR_SERVICE_DOES_NOT_EXIST, "")
          with mock.patch("psutil._psplatform.cext.winservice_query_status",
                          side_effect=exc):
              self.assertRaises(psutil.NoSuchProcess, service.status)
          with mock.patch("psutil._psplatform.cext.winservice_query_config",
                          side_effect=exc):
              self.assertRaises(psutil.NoSuchProcess, service.username)
  
          # test AccessDenied
          exc = WindowsError(
              psutil._psplatform.cext.ERROR_ACCESS_DENIED, "")
          with mock.patch("psutil._psplatform.cext.winservice_query_status",
                          side_effect=exc):
              self.assertRaises(psutil.AccessDenied, service.status)
          with mock.patch("psutil._psplatform.cext.winservice_query_config",
                          side_effect=exc):
              self.assertRaises(psutil.AccessDenied, service.username)
  
          # test __str__ and __repr__
          self.assertIn(service.name(), str(service))
          self.assertIn(service.display_name(), str(service))
          self.assertIn(service.name(), repr(service))
          self.assertIn(service.display_name(), repr(service))
  
  
  if __name__ == '__main__':
      run_test_module_by_name(__file__)
  