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Diffstat (limited to 'lib/psutil/tests/test_misc.py')
| -rw-r--r-- | lib/psutil/tests/test_misc.py | 852 |
1 files changed, 852 insertions, 0 deletions
diff --git a/lib/psutil/tests/test_misc.py b/lib/psutil/tests/test_misc.py new file mode 100644 index 0000000..e22789c --- /dev/null +++ b/lib/psutil/tests/test_misc.py @@ -0,0 +1,852 @@ +#!/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. + +""" +Miscellaneous tests. +""" + +import ast +import collections +import errno +import json +import os +import pickle +import socket +import stat +import unittest + +import psutil +import psutil.tests +from psutil import LINUX +from psutil import POSIX +from psutil import WINDOWS +from psutil._common import bcat +from psutil._common import cat +from psutil._common import debug +from psutil._common import isfile_strict +from psutil._common import memoize +from psutil._common import memoize_when_activated +from psutil._common import parse_environ_block +from psutil._common import supports_ipv6 +from psutil._common import wrap_numbers +from psutil._compat import PY3 +from psutil._compat import FileNotFoundError +from psutil._compat import redirect_stderr +from psutil.tests import APPVEYOR +from psutil.tests import CI_TESTING +from psutil.tests import HAS_BATTERY +from psutil.tests import HAS_MEMORY_MAPS +from psutil.tests import HAS_NET_IO_COUNTERS +from psutil.tests import HAS_SENSORS_BATTERY +from psutil.tests import HAS_SENSORS_FANS +from psutil.tests import HAS_SENSORS_TEMPERATURES +from psutil.tests import PYTHON_EXE +from psutil.tests import ROOT_DIR +from psutil.tests import SCRIPTS_DIR +from psutil.tests import PsutilTestCase +from psutil.tests import import_module_by_path +from psutil.tests import mock +from psutil.tests import reload_module +from psutil.tests import sh + + +# =================================================================== +# --- Test classes' repr(), str(), ... +# =================================================================== + + +class TestSpecialMethods(PsutilTestCase): + + def test_process__repr__(self, func=repr): + p = psutil.Process(self.spawn_testproc().pid) + r = func(p) + self.assertIn("psutil.Process", r) + self.assertIn("pid=%s" % p.pid, r) + self.assertIn("name='%s'" % str(p.name()), + r.replace("name=u'", "name='")) + self.assertIn("status=", r) + self.assertNotIn("exitcode=", r) + p.terminate() + p.wait() + r = func(p) + self.assertIn("status='terminated'", r) + self.assertIn("exitcode=", r) + + with mock.patch.object(psutil.Process, "name", + side_effect=psutil.ZombieProcess(os.getpid())): + p = psutil.Process() + r = func(p) + self.assertIn("pid=%s" % p.pid, r) + self.assertIn("status='zombie'", r) + self.assertNotIn("name=", r) + with mock.patch.object(psutil.Process, "name", + side_effect=psutil.NoSuchProcess(os.getpid())): + p = psutil.Process() + r = func(p) + self.assertIn("pid=%s" % p.pid, r) + self.assertIn("terminated", r) + self.assertNotIn("name=", r) + with mock.patch.object(psutil.Process, "name", + side_effect=psutil.AccessDenied(os.getpid())): + p = psutil.Process() + r = func(p) + self.assertIn("pid=%s" % p.pid, r) + self.assertNotIn("name=", r) + + def test_process__str__(self): + self.test_process__repr__(func=str) + + def test_error__repr__(self): + self.assertEqual(repr(psutil.Error()), "psutil.Error()") + + def test_error__str__(self): + self.assertEqual(str(psutil.Error()), "") + + def test_no_such_process__repr__(self): + self.assertEqual( + repr(psutil.NoSuchProcess(321)), + "psutil.NoSuchProcess(pid=321, msg='process no longer exists')") + self.assertEqual( + repr(psutil.NoSuchProcess(321, name="name", msg="msg")), + "psutil.NoSuchProcess(pid=321, name='name', msg='msg')") + + def test_no_such_process__str__(self): + self.assertEqual( + str(psutil.NoSuchProcess(321)), + "process no longer exists (pid=321)") + self.assertEqual( + str(psutil.NoSuchProcess(321, name="name", msg="msg")), + "msg (pid=321, name='name')") + + def test_zombie_process__repr__(self): + self.assertEqual( + repr(psutil.ZombieProcess(321)), + 'psutil.ZombieProcess(pid=321, msg="PID still ' + 'exists but it\'s a zombie")') + self.assertEqual( + repr(psutil.ZombieProcess(321, name="name", ppid=320, msg="foo")), + "psutil.ZombieProcess(pid=321, ppid=320, name='name', msg='foo')") + + def test_zombie_process__str__(self): + self.assertEqual( + str(psutil.ZombieProcess(321)), + "PID still exists but it's a zombie (pid=321)") + self.assertEqual( + str(psutil.ZombieProcess(321, name="name", ppid=320, msg="foo")), + "foo (pid=321, ppid=320, name='name')") + + def test_access_denied__repr__(self): + self.assertEqual( + repr(psutil.AccessDenied(321)), + "psutil.AccessDenied(pid=321)") + self.assertEqual( + repr(psutil.AccessDenied(321, name="name", msg="msg")), + "psutil.AccessDenied(pid=321, name='name', msg='msg')") + + def test_access_denied__str__(self): + self.assertEqual( + str(psutil.AccessDenied(321)), + "(pid=321)") + self.assertEqual( + str(psutil.AccessDenied(321, name="name", msg="msg")), + "msg (pid=321, name='name')") + + def test_timeout_expired__repr__(self): + self.assertEqual( + repr(psutil.TimeoutExpired(5)), + "psutil.TimeoutExpired(seconds=5, msg='timeout after 5 seconds')") + self.assertEqual( + repr(psutil.TimeoutExpired(5, pid=321, name="name")), + "psutil.TimeoutExpired(pid=321, name='name', seconds=5, " + "msg='timeout after 5 seconds')") + + def test_timeout_expired__str__(self): + self.assertEqual( + str(psutil.TimeoutExpired(5)), + "timeout after 5 seconds") + self.assertEqual( + str(psutil.TimeoutExpired(5, pid=321, name="name")), + "timeout after 5 seconds (pid=321, name='name')") + + def test_process__eq__(self): + p1 = psutil.Process() + p2 = psutil.Process() + self.assertEqual(p1, p2) + p2._ident = (0, 0) + self.assertNotEqual(p1, p2) + self.assertNotEqual(p1, 'foo') + + def test_process__hash__(self): + s = set([psutil.Process(), psutil.Process()]) + self.assertEqual(len(s), 1) + + +# =================================================================== +# --- Misc, generic, corner cases +# =================================================================== + + +class TestMisc(PsutilTestCase): + + def test__all__(self): + dir_psutil = dir(psutil) + for name in dir_psutil: + if name in ('long', 'tests', 'test', 'PermissionError', + 'ProcessLookupError'): + continue + if not name.startswith('_'): + try: + __import__(name) + except ImportError: + if name not in psutil.__all__: + fun = getattr(psutil, name) + if fun is None: + continue + if (fun.__doc__ is not None and + 'deprecated' not in fun.__doc__.lower()): + raise self.fail('%r not in psutil.__all__' % name) + + # Import 'star' will break if __all__ is inconsistent, see: + # https://github.com/giampaolo/psutil/issues/656 + # Can't do `from psutil import *` as it won't work on python 3 + # so we simply iterate over __all__. + for name in psutil.__all__: + self.assertIn(name, dir_psutil) + + def test_version(self): + self.assertEqual('.'.join([str(x) for x in psutil.version_info]), + psutil.__version__) + + def test_process_as_dict_no_new_names(self): + # See https://github.com/giampaolo/psutil/issues/813 + p = psutil.Process() + p.foo = '1' + self.assertNotIn('foo', p.as_dict()) + + def test_serialization(self): + def check(ret): + if json is not None: + json.loads(json.dumps(ret)) + a = pickle.dumps(ret) + b = pickle.loads(a) + self.assertEqual(ret, b) + + check(psutil.Process().as_dict()) + check(psutil.virtual_memory()) + check(psutil.swap_memory()) + check(psutil.cpu_times()) + check(psutil.cpu_times_percent(interval=0)) + check(psutil.net_io_counters()) + if LINUX and not os.path.exists('/proc/diskstats'): + pass + else: + if not APPVEYOR: + check(psutil.disk_io_counters()) + check(psutil.disk_partitions()) + check(psutil.disk_usage(os.getcwd())) + check(psutil.users()) + + # XXX: https://github.com/pypa/setuptools/pull/2896 + @unittest.skipIf(APPVEYOR, "temporarily disabled due to setuptools bug") + def test_setup_script(self): + setup_py = os.path.join(ROOT_DIR, 'setup.py') + if CI_TESTING and not os.path.exists(setup_py): + return self.skipTest("can't find setup.py") + module = import_module_by_path(setup_py) + self.assertRaises(SystemExit, module.setup) + self.assertEqual(module.get_version(), psutil.__version__) + + def test_ad_on_process_creation(self): + # We are supposed to be able to instantiate Process also in case + # of zombie processes or access denied. + with mock.patch.object(psutil.Process, 'create_time', + side_effect=psutil.AccessDenied) as meth: + psutil.Process() + assert meth.called + with mock.patch.object(psutil.Process, 'create_time', + side_effect=psutil.ZombieProcess(1)) as meth: + psutil.Process() + assert meth.called + with mock.patch.object(psutil.Process, 'create_time', + side_effect=ValueError) as meth: + with self.assertRaises(ValueError): + psutil.Process() + assert meth.called + + def test_sanity_version_check(self): + # see: https://github.com/giampaolo/psutil/issues/564 + with mock.patch( + "psutil._psplatform.cext.version", return_value="0.0.0"): + with self.assertRaises(ImportError) as cm: + reload_module(psutil) + self.assertIn("version conflict", str(cm.exception).lower()) + + +# =================================================================== +# --- psutil/_common.py utils +# =================================================================== + + +class TestCommonModule(PsutilTestCase): + + def test_memoize(self): + @memoize + def foo(*args, **kwargs): + """foo docstring""" + calls.append(None) + return (args, kwargs) + + calls = [] + # no args + for x in range(2): + ret = foo() + expected = ((), {}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 1) + # with args + for x in range(2): + ret = foo(1) + expected = ((1, ), {}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 2) + # with args + kwargs + for x in range(2): + ret = foo(1, bar=2) + expected = ((1, ), {'bar': 2}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 3) + # clear cache + foo.cache_clear() + ret = foo() + expected = ((), {}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 4) + # docstring + self.assertEqual(foo.__doc__, "foo docstring") + + def test_memoize_when_activated(self): + class Foo: + + @memoize_when_activated + def foo(self): + calls.append(None) + + f = Foo() + calls = [] + f.foo() + f.foo() + self.assertEqual(len(calls), 2) + + # activate + calls = [] + f.foo.cache_activate(f) + f.foo() + f.foo() + self.assertEqual(len(calls), 1) + + # deactivate + calls = [] + f.foo.cache_deactivate(f) + f.foo() + f.foo() + self.assertEqual(len(calls), 2) + + def test_parse_environ_block(self): + def k(s): + return s.upper() if WINDOWS else s + + self.assertEqual(parse_environ_block("a=1\0"), + {k("a"): "1"}) + self.assertEqual(parse_environ_block("a=1\0b=2\0\0"), + {k("a"): "1", k("b"): "2"}) + self.assertEqual(parse_environ_block("a=1\0b=\0\0"), + {k("a"): "1", k("b"): ""}) + # ignore everything after \0\0 + self.assertEqual(parse_environ_block("a=1\0b=2\0\0c=3\0"), + {k("a"): "1", k("b"): "2"}) + # ignore everything that is not an assignment + self.assertEqual(parse_environ_block("xxx\0a=1\0"), {k("a"): "1"}) + self.assertEqual(parse_environ_block("a=1\0=b=2\0"), {k("a"): "1"}) + # do not fail if the block is incomplete + self.assertEqual(parse_environ_block("a=1\0b=2"), {k("a"): "1"}) + + def test_supports_ipv6(self): + self.addCleanup(supports_ipv6.cache_clear) + if supports_ipv6(): + with mock.patch('psutil._common.socket') as s: + s.has_ipv6 = False + supports_ipv6.cache_clear() + assert not supports_ipv6() + + supports_ipv6.cache_clear() + with mock.patch('psutil._common.socket.socket', + side_effect=socket.error) as s: + assert not supports_ipv6() + assert s.called + + supports_ipv6.cache_clear() + with mock.patch('psutil._common.socket.socket', + side_effect=socket.gaierror) as s: + assert not supports_ipv6() + supports_ipv6.cache_clear() + assert s.called + + supports_ipv6.cache_clear() + with mock.patch('psutil._common.socket.socket.bind', + side_effect=socket.gaierror) as s: + assert not supports_ipv6() + supports_ipv6.cache_clear() + assert s.called + else: + with self.assertRaises(socket.error): + sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) + try: + sock.bind(("::1", 0)) + finally: + sock.close() + + def test_isfile_strict(self): + this_file = os.path.abspath(__file__) + assert isfile_strict(this_file) + assert not isfile_strict(os.path.dirname(this_file)) + with mock.patch('psutil._common.os.stat', + side_effect=OSError(errno.EPERM, "foo")): + self.assertRaises(OSError, isfile_strict, this_file) + with mock.patch('psutil._common.os.stat', + side_effect=OSError(errno.EACCES, "foo")): + self.assertRaises(OSError, isfile_strict, this_file) + with mock.patch('psutil._common.os.stat', + side_effect=OSError(errno.ENOENT, "foo")): + assert not isfile_strict(this_file) + with mock.patch('psutil._common.stat.S_ISREG', return_value=False): + assert not isfile_strict(this_file) + + def test_debug(self): + if PY3: + from io import StringIO + else: + from StringIO import StringIO + + with redirect_stderr(StringIO()) as f: + debug("hello") + msg = f.getvalue() + assert msg.startswith("psutil-debug"), msg + self.assertIn("hello", msg) + self.assertIn(__file__.replace('.pyc', '.py'), msg) + + # supposed to use repr(exc) + with redirect_stderr(StringIO()) as f: + debug(ValueError("this is an error")) + msg = f.getvalue() + self.assertIn("ignoring ValueError", msg) + self.assertIn("'this is an error'", msg) + + # supposed to use str(exc), because of extra info about file name + with redirect_stderr(StringIO()) as f: + exc = OSError(2, "no such file") + exc.filename = "/foo" + debug(exc) + msg = f.getvalue() + self.assertIn("no such file", msg) + self.assertIn("/foo", msg) + + def test_cat_bcat(self): + testfn = self.get_testfn() + with open(testfn, "wt") as f: + f.write("foo") + self.assertEqual(cat(testfn), "foo") + self.assertEqual(bcat(testfn), b"foo") + self.assertRaises(FileNotFoundError, cat, testfn + '-invalid') + self.assertRaises(FileNotFoundError, bcat, testfn + '-invalid') + self.assertEqual(cat(testfn + '-invalid', fallback="bar"), "bar") + self.assertEqual(bcat(testfn + '-invalid', fallback="bar"), "bar") + + +# =================================================================== +# --- Tests for wrap_numbers() function. +# =================================================================== + + +nt = collections.namedtuple('foo', 'a b c') + + +class TestWrapNumbers(PsutilTestCase): + + def setUp(self): + wrap_numbers.cache_clear() + + tearDown = setUp + + def test_first_call(self): + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_input_hasnt_changed(self): + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_increase_but_no_wrap(self): + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(10, 15, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(20, 25, 30)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(20, 25, 30)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_wrap(self): + # let's say 100 is the threshold + input = {'disk1': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # first wrap restarts from 10 + input = {'disk1': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 110)}) + # then it remains the same + input = {'disk1': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 110)}) + # then it goes up + input = {'disk1': nt(100, 100, 90)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 190)}) + # then it wraps again + input = {'disk1': nt(100, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 210)}) + # and remains the same + input = {'disk1': nt(100, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 210)}) + # now wrap another num + input = {'disk1': nt(50, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(150, 100, 210)}) + # and again + input = {'disk1': nt(40, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(190, 100, 210)}) + # keep it the same + input = {'disk1': nt(40, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(190, 100, 210)}) + + def test_changing_keys(self): + # Emulate a case where the second call to disk_io() + # (or whatever) provides a new disk, then the new disk + # disappears on the third call. + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(5, 5, 5), + 'disk2': nt(7, 7, 7)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(8, 8, 8)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_changing_keys_w_wrap(self): + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # disk 2 wraps + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 110)}) + # disk 2 disappears + input = {'disk1': nt(50, 50, 50)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + # then it appears again; the old wrap is supposed to be + # gone. + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # remains the same + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # and then wraps again + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 110)}) + + def test_real_data(self): + d = {'nvme0n1': (300, 508, 640, 1571, 5970, 1987, 2049, 451751, 47048), + 'nvme0n1p1': (1171, 2, 5600256, 1024, 516, 0, 0, 0, 8), + 'nvme0n1p2': (54, 54, 2396160, 5165056, 4, 24, 30, 1207, 28), + 'nvme0n1p3': (2389, 4539, 5154, 150, 4828, 1844, 2019, 398, 348)} + self.assertEqual(wrap_numbers(d, 'disk_io'), d) + self.assertEqual(wrap_numbers(d, 'disk_io'), d) + # decrease this ↓ + d = {'nvme0n1': (100, 508, 640, 1571, 5970, 1987, 2049, 451751, 47048), + 'nvme0n1p1': (1171, 2, 5600256, 1024, 516, 0, 0, 0, 8), + 'nvme0n1p2': (54, 54, 2396160, 5165056, 4, 24, 30, 1207, 28), + 'nvme0n1p3': (2389, 4539, 5154, 150, 4828, 1844, 2019, 398, 348)} + out = wrap_numbers(d, 'disk_io') + self.assertEqual(out['nvme0n1'][0], 400) + + # --- cache tests + + def test_cache_first_call(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual(cache[1], {'disk_io': {}}) + self.assertEqual(cache[2], {'disk_io': {}}) + + def test_cache_call_twice(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + input = {'disk1': nt(10, 10, 10)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 0}}) + self.assertEqual(cache[2], {'disk_io': {}}) + + def test_cache_wrap(self): + # let's say 100 is the threshold + input = {'disk1': nt(100, 100, 100)} + wrap_numbers(input, 'disk_io') + + # first wrap restarts from 10 + input = {'disk1': nt(100, 100, 10)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 100}}) + self.assertEqual(cache[2], {'disk_io': {'disk1': set([('disk1', 2)])}}) + + def assert_(): + cache = wrap_numbers.cache_info() + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, + ('disk1', 2): 100}}) + self.assertEqual(cache[2], + {'disk_io': {'disk1': set([('disk1', 2)])}}) + + # then it remains the same + input = {'disk1': nt(100, 100, 10)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + assert_() + + # then it goes up + input = {'disk1': nt(100, 100, 90)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + assert_() + + # then it wraps again + input = {'disk1': nt(100, 100, 20)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 190}}) + self.assertEqual(cache[2], {'disk_io': {'disk1': set([('disk1', 2)])}}) + + def test_cache_changing_keys(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + input = {'disk1': nt(5, 5, 5), + 'disk2': nt(7, 7, 7)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 0}}) + self.assertEqual(cache[2], {'disk_io': {}}) + + def test_cache_clear(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + wrap_numbers(input, 'disk_io') + wrap_numbers.cache_clear('disk_io') + self.assertEqual(wrap_numbers.cache_info(), ({}, {}, {})) + wrap_numbers.cache_clear('disk_io') + wrap_numbers.cache_clear('?!?') + + @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') + def test_cache_clear_public_apis(self): + if not psutil.disk_io_counters() or not psutil.net_io_counters(): + return self.skipTest("no disks or NICs available") + psutil.disk_io_counters() + psutil.net_io_counters() + caches = wrap_numbers.cache_info() + for cache in caches: + self.assertIn('psutil.disk_io_counters', cache) + self.assertIn('psutil.net_io_counters', cache) + + psutil.disk_io_counters.cache_clear() + caches = wrap_numbers.cache_info() + for cache in caches: + self.assertIn('psutil.net_io_counters', cache) + self.assertNotIn('psutil.disk_io_counters', cache) + + psutil.net_io_counters.cache_clear() + caches = wrap_numbers.cache_info() + self.assertEqual(caches, ({}, {}, {})) + + +# =================================================================== +# --- Example script tests +# =================================================================== + + +@unittest.skipIf(not os.path.exists(SCRIPTS_DIR), + "can't locate scripts directory") +class TestScripts(PsutilTestCase): + """Tests for scripts in the "scripts" directory.""" + + @staticmethod + def assert_stdout(exe, *args, **kwargs): + exe = '%s' % os.path.join(SCRIPTS_DIR, exe) + cmd = [PYTHON_EXE, exe] + for arg in args: + cmd.append(arg) + try: + out = sh(cmd, **kwargs).strip() + except RuntimeError as err: + if 'AccessDenied' in str(err): + return str(err) + else: + raise + assert out, out + return out + + @staticmethod + def assert_syntax(exe, args=None): + exe = os.path.join(SCRIPTS_DIR, exe) + if PY3: + f = open(exe, 'rt', encoding='utf8') + else: + f = open(exe, 'rt') + with f: + src = f.read() + ast.parse(src) + + def test_coverage(self): + # make sure all example scripts have a test method defined + meths = dir(self) + for name in os.listdir(SCRIPTS_DIR): + if name.endswith('.py'): + if 'test_' + os.path.splitext(name)[0] not in meths: + # self.assert_stdout(name) + raise self.fail('no test defined for %r script' + % os.path.join(SCRIPTS_DIR, name)) + + @unittest.skipIf(not POSIX, "POSIX only") + def test_executable(self): + for root, dirs, files in os.walk(SCRIPTS_DIR): + for file in files: + if file.endswith('.py'): + path = os.path.join(root, file) + if not stat.S_IXUSR & os.stat(path)[stat.ST_MODE]: + raise self.fail('%r is not executable' % path) + + def test_disk_usage(self): + self.assert_stdout('disk_usage.py') + + def test_free(self): + self.assert_stdout('free.py') + + def test_meminfo(self): + self.assert_stdout('meminfo.py') + + def test_procinfo(self): + self.assert_stdout('procinfo.py', str(os.getpid())) + + @unittest.skipIf(CI_TESTING and not psutil.users(), "no users") + def test_who(self): + self.assert_stdout('who.py') + + def test_ps(self): + self.assert_stdout('ps.py') + + def test_pstree(self): + self.assert_stdout('pstree.py') + + def test_netstat(self): + self.assert_stdout('netstat.py') + + def test_ifconfig(self): + self.assert_stdout('ifconfig.py') + + @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") + def test_pmap(self): + self.assert_stdout('pmap.py', str(os.getpid())) + + def test_procsmem(self): + if 'uss' not in psutil.Process().memory_full_info()._fields: + raise self.skipTest("not supported") + self.assert_stdout('procsmem.py') + + def test_killall(self): + self.assert_syntax('killall.py') + + def test_nettop(self): + self.assert_syntax('nettop.py') + + def test_top(self): + self.assert_syntax('top.py') + + def test_iotop(self): + self.assert_syntax('iotop.py') + + def test_pidof(self): + output = self.assert_stdout('pidof.py', psutil.Process().name()) + self.assertIn(str(os.getpid()), output) + + @unittest.skipIf(not WINDOWS, "WINDOWS only") + def test_winservices(self): + self.assert_stdout('winservices.py') + + def test_cpu_distribution(self): + self.assert_syntax('cpu_distribution.py') + + @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") + def test_temperatures(self): + if not psutil.sensors_temperatures(): + self.skipTest("no temperatures") + self.assert_stdout('temperatures.py') + + @unittest.skipIf(not HAS_SENSORS_FANS, "not supported") + def test_fans(self): + if not psutil.sensors_fans(): + self.skipTest("no fans") + self.assert_stdout('fans.py') + + @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_battery(self): + self.assert_stdout('battery.py') + + @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_sensors(self): + self.assert_stdout('sensors.py') + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) |