--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/env/lib/python3.7/site-packages/psutil/tests/test_unicode.py	Thu May 14 14:56:58 2020 -0400
@@ -0,0 +1,372 @@
+#!/usr/bin/env python3
+# -*- 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.
+
+"""
+Notes about unicode handling in psutil
+======================================
+
+Starting from version 5.3.0 psutil adds unicode support, see:
+https://github.com/giampaolo/psutil/issues/1040
+The notes below apply to *any* API returning a string such as
+process exe(), cwd() or username():
+
+* all strings are encoded by using the OS filesystem encoding
+  (sys.getfilesystemencoding()) which varies depending on the platform
+  (e.g. "UTF-8" on macOS, "mbcs" on Win)
+* no API call is supposed to crash with UnicodeDecodeError
+* instead, in case of badly encoded data returned by the OS, the
+  following error handlers are used to replace the corrupted characters in
+  the string:
+    * Python 3: sys.getfilesystemencodeerrors() (PY 3.6+) or
+      "surrogatescape" on POSIX and "replace" on Windows
+    * Python 2: "replace"
+* on Python 2 all APIs return bytes (str type), never unicode
+* on Python 2, you can go back to unicode by doing:
+
+    >>> unicode(p.exe(), sys.getdefaultencoding(), errors="replace")
+
+For a detailed explanation of how psutil handles unicode see #1040.
+
+Tests
+=====
+
+List of APIs returning or dealing with a string:
+('not tested' means they are not tested to deal with non-ASCII strings):
+
+* Process.cmdline()
+* Process.connections('unix')
+* Process.cwd()
+* Process.environ()
+* Process.exe()
+* Process.memory_maps()
+* Process.name()
+* Process.open_files()
+* Process.username()             (not tested)
+
+* disk_io_counters()             (not tested)
+* disk_partitions()              (not tested)
+* disk_usage(str)
+* net_connections('unix')
+* net_if_addrs()                 (not tested)
+* net_if_stats()                 (not tested)
+* net_io_counters()              (not tested)
+* sensors_fans()                 (not tested)
+* sensors_temperatures()         (not tested)
+* users()                        (not tested)
+
+* WindowsService.binpath()       (not tested)
+* WindowsService.description()   (not tested)
+* WindowsService.display_name()  (not tested)
+* WindowsService.name()          (not tested)
+* WindowsService.status()        (not tested)
+* WindowsService.username()      (not tested)
+
+In here we create a unicode path with a funky non-ASCII name and (where
+possible) make psutil return it back (e.g. on name(), exe(), open_files(),
+etc.) and make sure that:
+
+* psutil never crashes with UnicodeDecodeError
+* the returned path matches
+"""
+
+import os
+import traceback
+import warnings
+from contextlib import closing
+
+from psutil import BSD
+from psutil import MACOS
+from psutil import OPENBSD
+from psutil import POSIX
+from psutil import WINDOWS
+from psutil._compat import PY3
+from psutil._compat import u
+from psutil.tests import APPVEYOR
+from psutil.tests import CIRRUS
+from psutil.tests import ASCII_FS
+from psutil.tests import bind_unix_socket
+from psutil.tests import chdir
+from psutil.tests import copyload_shared_lib
+from psutil.tests import create_exe
+from psutil.tests import get_test_subprocess
+from psutil.tests import HAS_CONNECTIONS_UNIX
+from psutil.tests import HAS_ENVIRON
+from psutil.tests import HAS_MEMORY_MAPS
+from psutil.tests import PYPY
+from psutil.tests import reap_children
+from psutil.tests import safe_mkdir
+from psutil.tests import safe_rmpath as _safe_rmpath
+from psutil.tests import skip_on_access_denied
+from psutil.tests import TESTFILE_PREFIX
+from psutil.tests import TESTFN
+from psutil.tests import TESTFN_UNICODE
+from psutil.tests import TRAVIS
+from psutil.tests import unittest
+from psutil.tests import unix_socket_path
+import psutil
+
+
+def safe_rmpath(path):
+    if APPVEYOR:
+        # TODO - this is quite random and I'm not sure why it happens,
+        # nor I can reproduce it locally:
+        # https://ci.appveyor.com/project/giampaolo/psutil/build/job/
+        #     jiq2cgd6stsbtn60
+        # safe_rmpath() happens after reap_children() so this is weird
+        # Perhaps wait_procs() on Windows is broken? Maybe because
+        # of STILL_ACTIVE?
+        # https://github.com/giampaolo/psutil/blob/
+        #     68c7a70728a31d8b8b58f4be6c4c0baa2f449eda/psutil/arch/
+        #     windows/process_info.c#L146
+        try:
+            return _safe_rmpath(path)
+        except WindowsError:
+            traceback.print_exc()
+    else:
+        return _safe_rmpath(path)
+
+
+def subprocess_supports_unicode(name):
+    """Return True if both the fs and the subprocess module can
+    deal with a unicode file name.
+    """
+    if PY3:
+        return True
+    try:
+        safe_rmpath(name)
+        create_exe(name)
+        get_test_subprocess(cmd=[name])
+    except UnicodeEncodeError:
+        return False
+    else:
+        return True
+    finally:
+        reap_children()
+
+
+# An invalid unicode string.
+if PY3:
+    INVALID_NAME = (TESTFN.encode('utf8') + b"f\xc0\x80").decode(
+        'utf8', 'surrogateescape')
+else:
+    INVALID_NAME = TESTFN + "f\xc0\x80"
+
+
+# ===================================================================
+# FS APIs
+# ===================================================================
+
+
+class _BaseFSAPIsTests(object):
+    funky_name = None
+
+    @classmethod
+    def setUpClass(cls):
+        safe_rmpath(cls.funky_name)
+        create_exe(cls.funky_name)
+
+    @classmethod
+    def tearDownClass(cls):
+        reap_children()
+        safe_rmpath(cls.funky_name)
+
+    def tearDown(self):
+        reap_children()
+
+    def expect_exact_path_match(self):
+        raise NotImplementedError("must be implemented in subclass")
+
+    def test_proc_exe(self):
+        subp = get_test_subprocess(cmd=[self.funky_name])
+        p = psutil.Process(subp.pid)
+        exe = p.exe()
+        self.assertIsInstance(exe, str)
+        if self.expect_exact_path_match():
+            self.assertEqual(os.path.normcase(exe),
+                             os.path.normcase(self.funky_name))
+
+    def test_proc_name(self):
+        subp = get_test_subprocess(cmd=[self.funky_name])
+        name = psutil.Process(subp.pid).name()
+        self.assertIsInstance(name, str)
+        if self.expect_exact_path_match():
+            self.assertEqual(name, os.path.basename(self.funky_name))
+
+    def test_proc_cmdline(self):
+        subp = get_test_subprocess(cmd=[self.funky_name])
+        p = psutil.Process(subp.pid)
+        cmdline = p.cmdline()
+        for part in cmdline:
+            self.assertIsInstance(part, str)
+        if self.expect_exact_path_match():
+            self.assertEqual(cmdline, [self.funky_name])
+
+    def test_proc_cwd(self):
+        dname = self.funky_name + "2"
+        self.addCleanup(safe_rmpath, dname)
+        safe_mkdir(dname)
+        with chdir(dname):
+            p = psutil.Process()
+            cwd = p.cwd()
+        self.assertIsInstance(p.cwd(), str)
+        if self.expect_exact_path_match():
+            self.assertEqual(cwd, dname)
+
+    @unittest.skipIf(PYPY and WINDOWS, "fails on PYPY + WINDOWS")
+    def test_proc_open_files(self):
+        p = psutil.Process()
+        start = set(p.open_files())
+        with open(self.funky_name, 'rb'):
+            new = set(p.open_files())
+        path = (new - start).pop().path
+        self.assertIsInstance(path, str)
+        if BSD and not path:
+            # XXX - see https://github.com/giampaolo/psutil/issues/595
+            return self.skipTest("open_files on BSD is broken")
+        if self.expect_exact_path_match():
+            self.assertEqual(os.path.normcase(path),
+                             os.path.normcase(self.funky_name))
+
+    @unittest.skipIf(not POSIX, "POSIX only")
+    def test_proc_connections(self):
+        suffix = os.path.basename(self.funky_name)
+        with unix_socket_path(suffix=suffix) as name:
+            try:
+                sock = bind_unix_socket(name)
+            except UnicodeEncodeError:
+                if PY3:
+                    raise
+                else:
+                    raise unittest.SkipTest("not supported")
+            with closing(sock):
+                conn = psutil.Process().connections('unix')[0]
+                self.assertIsInstance(conn.laddr, str)
+                # AF_UNIX addr not set on OpenBSD
+                if not OPENBSD and not CIRRUS:  # XXX
+                    self.assertEqual(conn.laddr, name)
+
+    @unittest.skipIf(not POSIX, "POSIX only")
+    @unittest.skipIf(not HAS_CONNECTIONS_UNIX, "can't list UNIX sockets")
+    @skip_on_access_denied()
+    def test_net_connections(self):
+        def find_sock(cons):
+            for conn in cons:
+                if os.path.basename(conn.laddr).startswith(TESTFILE_PREFIX):
+                    return conn
+            raise ValueError("connection not found")
+
+        suffix = os.path.basename(self.funky_name)
+        with unix_socket_path(suffix=suffix) as name:
+            try:
+                sock = bind_unix_socket(name)
+            except UnicodeEncodeError:
+                if PY3:
+                    raise
+                else:
+                    raise unittest.SkipTest("not supported")
+            with closing(sock):
+                cons = psutil.net_connections(kind='unix')
+                # AF_UNIX addr not set on OpenBSD
+                if not OPENBSD:
+                    conn = find_sock(cons)
+                    self.assertIsInstance(conn.laddr, str)
+                    self.assertEqual(conn.laddr, name)
+
+    def test_disk_usage(self):
+        dname = self.funky_name + "2"
+        self.addCleanup(safe_rmpath, dname)
+        safe_mkdir(dname)
+        psutil.disk_usage(dname)
+
+    @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported")
+    @unittest.skipIf(not PY3, "ctypes does not support unicode on PY2")
+    @unittest.skipIf(PYPY and WINDOWS,
+                     "copyload_shared_lib() unsupported on PYPY + WINDOWS")
+    def test_memory_maps(self):
+        # XXX: on Python 2, using ctypes.CDLL with a unicode path
+        # opens a message box which blocks the test run.
+        with copyload_shared_lib(dst_prefix=self.funky_name) as funky_path:
+            def normpath(p):
+                return os.path.realpath(os.path.normcase(p))
+            libpaths = [normpath(x.path)
+                        for x in psutil.Process().memory_maps()]
+            # ...just to have a clearer msg in case of failure
+            libpaths = [x for x in libpaths if TESTFILE_PREFIX in x]
+            self.assertIn(normpath(funky_path), libpaths)
+            for path in libpaths:
+                self.assertIsInstance(path, str)
+
+
+# https://travis-ci.org/giampaolo/psutil/jobs/440073249
+@unittest.skipIf(PYPY and TRAVIS, "unreliable on PYPY + TRAVIS")
+@unittest.skipIf(MACOS and TRAVIS, "unreliable on TRAVIS")  # TODO
+@unittest.skipIf(ASCII_FS, "ASCII fs")
+@unittest.skipIf(not subprocess_supports_unicode(TESTFN_UNICODE),
+                 "subprocess can't deal with unicode")
+class TestFSAPIs(_BaseFSAPIsTests, unittest.TestCase):
+    """Test FS APIs with a funky, valid, UTF8 path name."""
+    funky_name = TESTFN_UNICODE
+
+    @classmethod
+    def expect_exact_path_match(cls):
+        # Do not expect psutil to correctly handle unicode paths on
+        # Python 2 if os.listdir() is not able either.
+        here = '.' if isinstance(cls.funky_name, str) else u('.')
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore")
+            return cls.funky_name in os.listdir(here)
+
+
+@unittest.skipIf(PYPY and TRAVIS, "unreliable on PYPY + TRAVIS")
+@unittest.skipIf(MACOS and TRAVIS, "unreliable on TRAVIS")  # TODO
+@unittest.skipIf(PYPY, "unreliable on PYPY")
+@unittest.skipIf(not subprocess_supports_unicode(INVALID_NAME),
+                 "subprocess can't deal with invalid unicode")
+class TestFSAPIsWithInvalidPath(_BaseFSAPIsTests, unittest.TestCase):
+    """Test FS APIs with a funky, invalid path name."""
+    funky_name = INVALID_NAME
+
+    @classmethod
+    def expect_exact_path_match(cls):
+        # Invalid unicode names are supposed to work on Python 2.
+        return True
+
+
+# ===================================================================
+# Non fs APIs
+# ===================================================================
+
+
+class TestNonFSAPIS(unittest.TestCase):
+    """Unicode tests for non fs-related APIs."""
+
+    def tearDown(self):
+        reap_children()
+
+    @unittest.skipIf(not HAS_ENVIRON, "not supported")
+    @unittest.skipIf(PYPY and WINDOWS, "segfaults on PYPY + WINDOWS")
+    def test_proc_environ(self):
+        # Note: differently from others, this test does not deal
+        # with fs paths. On Python 2 subprocess module is broken as
+        # it's not able to handle with non-ASCII env vars, so
+        # we use "è", which is part of the extended ASCII table
+        # (unicode point <= 255).
+        env = os.environ.copy()
+        funky_str = TESTFN_UNICODE if PY3 else 'è'
+        env['FUNNY_ARG'] = funky_str
+        sproc = get_test_subprocess(env=env)
+        p = psutil.Process(sproc.pid)
+        env = p.environ()
+        for k, v in env.items():
+            self.assertIsInstance(k, str)
+            self.assertIsInstance(v, str)
+        self.assertEqual(env['FUNNY_ARG'], funky_str)
+
+
+if __name__ == '__main__':
+    from psutil.tests.runner import run
+    run(__file__)