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test_system.py
#!/usr/bin/env python3 # 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. """Tests for system APIS.""" import contextlib import datetime import errno import os import platform import pprint import shutil import signal import socket import sys import time import unittest import psutil from psutil import AIX from psutil import BSD from psutil import FREEBSD from psutil import LINUX from psutil import MACOS from psutil import NETBSD from psutil import OPENBSD from psutil import POSIX from psutil import SUNOS from psutil import WINDOWS from psutil._compat import PY3 from psutil._compat import FileNotFoundError from psutil._compat import long from psutil.tests import ASCII_FS from psutil.tests import CI_TESTING from psutil.tests import DEVNULL from psutil.tests import GITHUB_ACTIONS from psutil.tests import GLOBAL_TIMEOUT from psutil.tests import HAS_BATTERY from psutil.tests import HAS_CPU_FREQ from psutil.tests import HAS_GETLOADAVG 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 IS_64BIT from psutil.tests import MACOS_12PLUS from psutil.tests import PYPY from psutil.tests import QEMU_USER from psutil.tests import UNICODE_SUFFIX from psutil.tests import PsutilTestCase from psutil.tests import check_net_address from psutil.tests import enum from psutil.tests import mock from psutil.tests import retry_on_failure # =================================================================== # --- System-related API tests # =================================================================== class TestProcessIter(PsutilTestCase): def test_pid_presence(self): self.assertIn(os.getpid(), [x.pid for x in psutil.process_iter()]) sproc = self.spawn_testproc() self.assertIn(sproc.pid, [x.pid for x in psutil.process_iter()]) p = psutil.Process(sproc.pid) p.kill() p.wait() self.assertNotIn(sproc.pid, [x.pid for x in psutil.process_iter()]) def test_no_duplicates(self): ls = [x for x in psutil.process_iter()] self.assertEqual( sorted(ls, key=lambda x: x.pid), sorted(set(ls), key=lambda x: x.pid), ) def test_emulate_nsp(self): list(psutil.process_iter()) # populate cache for x in range(2): with mock.patch( 'psutil.Process.as_dict', side_effect=psutil.NoSuchProcess(os.getpid()), ): self.assertEqual( list(psutil.process_iter(attrs=["cpu_times"])), [] ) psutil.process_iter.cache_clear() # repeat test without cache def test_emulate_access_denied(self): list(psutil.process_iter()) # populate cache for x in range(2): with mock.patch( 'psutil.Process.as_dict', side_effect=psutil.AccessDenied(os.getpid()), ): with self.assertRaises(psutil.AccessDenied): list(psutil.process_iter(attrs=["cpu_times"])) psutil.process_iter.cache_clear() # repeat test without cache def test_attrs(self): for p in psutil.process_iter(attrs=['pid']): self.assertEqual(list(p.info.keys()), ['pid']) # yield again for p in psutil.process_iter(attrs=['pid']): self.assertEqual(list(p.info.keys()), ['pid']) with self.assertRaises(ValueError): list(psutil.process_iter(attrs=['foo'])) with mock.patch( "psutil._psplatform.Process.cpu_times", side_effect=psutil.AccessDenied(0, ""), ) as m: for p in psutil.process_iter(attrs=["pid", "cpu_times"]): self.assertIsNone(p.info['cpu_times']) self.assertGreaterEqual(p.info['pid'], 0) assert m.called with mock.patch( "psutil._psplatform.Process.cpu_times", side_effect=psutil.AccessDenied(0, ""), ) as m: flag = object() for p in psutil.process_iter( attrs=["pid", "cpu_times"], ad_value=flag ): self.assertIs(p.info['cpu_times'], flag) self.assertGreaterEqual(p.info['pid'], 0) assert m.called def test_cache_clear(self): list(psutil.process_iter()) # populate cache assert psutil._pmap psutil.process_iter.cache_clear() assert not psutil._pmap class TestProcessAPIs(PsutilTestCase): @unittest.skipIf( PYPY and WINDOWS, "spawn_testproc() unreliable on PYPY + WINDOWS" ) def test_wait_procs(self): def callback(p): pids.append(p.pid) pids = [] sproc1 = self.spawn_testproc() sproc2 = self.spawn_testproc() sproc3 = self.spawn_testproc() procs = [psutil.Process(x.pid) for x in (sproc1, sproc2, sproc3)] self.assertRaises(ValueError, psutil.wait_procs, procs, timeout=-1) self.assertRaises(TypeError, psutil.wait_procs, procs, callback=1) t = time.time() gone, alive = psutil.wait_procs(procs, timeout=0.01, callback=callback) self.assertLess(time.time() - t, 0.5) self.assertEqual(gone, []) self.assertEqual(len(alive), 3) self.assertEqual(pids, []) for p in alive: self.assertFalse(hasattr(p, 'returncode')) @retry_on_failure(30) def test_1(procs, callback): gone, alive = psutil.wait_procs( procs, timeout=0.03, callback=callback ) self.assertEqual(len(gone), 1) self.assertEqual(len(alive), 2) return gone, alive sproc3.terminate() gone, alive = test_1(procs, callback) self.assertIn(sproc3.pid, [x.pid for x in gone]) if POSIX: self.assertEqual(gone.pop().returncode, -signal.SIGTERM) else: self.assertEqual(gone.pop().returncode, 1) self.assertEqual(pids, [sproc3.pid]) for p in alive: self.assertFalse(hasattr(p, 'returncode')) @retry_on_failure(30) def test_2(procs, callback): gone, alive = psutil.wait_procs( procs, timeout=0.03, callback=callback ) self.assertEqual(len(gone), 3) self.assertEqual(len(alive), 0) return gone, alive sproc1.terminate() sproc2.terminate() gone, alive = test_2(procs, callback) self.assertEqual(set(pids), set([sproc1.pid, sproc2.pid, sproc3.pid])) for p in gone: self.assertTrue(hasattr(p, 'returncode')) @unittest.skipIf( PYPY and WINDOWS, "spawn_testproc() unreliable on PYPY + WINDOWS" ) def test_wait_procs_no_timeout(self): sproc1 = self.spawn_testproc() sproc2 = self.spawn_testproc() sproc3 = self.spawn_testproc() procs = [psutil.Process(x.pid) for x in (sproc1, sproc2, sproc3)] for p in procs: p.terminate() psutil.wait_procs(procs) def test_pid_exists(self): sproc = self.spawn_testproc() self.assertTrue(psutil.pid_exists(sproc.pid)) p = psutil.Process(sproc.pid) p.kill() p.wait() self.assertFalse(psutil.pid_exists(sproc.pid)) self.assertFalse(psutil.pid_exists(-1)) self.assertEqual(psutil.pid_exists(0), 0 in psutil.pids()) def test_pid_exists_2(self): pids = psutil.pids() for pid in pids: try: assert psutil.pid_exists(pid) except AssertionError: # in case the process disappeared in meantime fail only # if it is no longer in psutil.pids() time.sleep(0.1) self.assertNotIn(pid, psutil.pids()) pids = range(max(pids) + 15000, max(pids) + 16000) for pid in pids: self.assertFalse(psutil.pid_exists(pid), msg=pid) class TestMiscAPIs(PsutilTestCase): def test_boot_time(self): bt = psutil.boot_time() self.assertIsInstance(bt, float) self.assertGreater(bt, 0) self.assertLess(bt, time.time()) @unittest.skipIf(CI_TESTING and not psutil.users(), "unreliable on CI") def test_users(self): users = psutil.users() self.assertNotEqual(users, []) for user in users: with self.subTest(user=user): assert user.name self.assertIsInstance(user.name, str) self.assertIsInstance(user.terminal, (str, type(None))) if user.host is not None: self.assertIsInstance(user.host, (str, type(None))) user.terminal # noqa user.host # noqa self.assertGreater(user.started, 0.0) datetime.datetime.fromtimestamp(user.started) if WINDOWS or OPENBSD: self.assertIsNone(user.pid) else: psutil.Process(user.pid) def test_test(self): # test for psutil.test() function stdout = sys.stdout sys.stdout = DEVNULL try: psutil.test() finally: sys.stdout = stdout def test_os_constants(self): names = [ "POSIX", "WINDOWS", "LINUX", "MACOS", "FREEBSD", "OPENBSD", "NETBSD", "BSD", "SUNOS", ] for name in names: self.assertIsInstance(getattr(psutil, name), bool, msg=name) if os.name == 'posix': assert psutil.POSIX assert not psutil.WINDOWS names.remove("POSIX") if "linux" in sys.platform.lower(): assert psutil.LINUX names.remove("LINUX") elif "bsd" in sys.platform.lower(): assert psutil.BSD self.assertEqual( [psutil.FREEBSD, psutil.OPENBSD, psutil.NETBSD].count( True ), 1, ) names.remove("BSD") names.remove("FREEBSD") names.remove("OPENBSD") names.remove("NETBSD") elif ( "sunos" in sys.platform.lower() or "solaris" in sys.platform.lower() ): assert psutil.SUNOS names.remove("SUNOS") elif "darwin" in sys.platform.lower(): assert psutil.MACOS names.remove("MACOS") else: assert psutil.WINDOWS assert not psutil.POSIX names.remove("WINDOWS") # assert all other constants are set to False for name in names: self.assertFalse(getattr(psutil, name), msg=name) class TestMemoryAPIs(PsutilTestCase): def test_virtual_memory(self): mem = psutil.virtual_memory() assert mem.total > 0, mem assert mem.available > 0, mem assert 0 <= mem.percent <= 100, mem assert mem.used > 0, mem assert mem.free >= 0, mem for name in mem._fields: value = getattr(mem, name) if name != 'percent': self.assertIsInstance(value, (int, long)) if name != 'total': if not value >= 0: raise self.fail("%r < 0 (%s)" % (name, value)) if value > mem.total: raise self.fail( "%r > total (total=%s, %s=%s)" % (name, mem.total, name, value) ) def test_swap_memory(self): mem = psutil.swap_memory() self.assertEqual( mem._fields, ('total', 'used', 'free', 'percent', 'sin', 'sout') ) assert mem.total >= 0, mem assert mem.used >= 0, mem if mem.total > 0: # likely a system with no swap partition assert mem.free > 0, mem else: assert mem.free == 0, mem assert 0 <= mem.percent <= 100, mem assert mem.sin >= 0, mem assert mem.sout >= 0, mem class TestCpuAPIs(PsutilTestCase): def test_cpu_count_logical(self): logical = psutil.cpu_count() self.assertIsNotNone(logical) self.assertEqual(logical, len(psutil.cpu_times(percpu=True))) self.assertGreaterEqual(logical, 1) if os.path.exists("/proc/cpuinfo"): with open("/proc/cpuinfo") as fd: cpuinfo_data = fd.read() if "physical id" not in cpuinfo_data: raise unittest.SkipTest("cpuinfo doesn't include physical id") def test_cpu_count_cores(self): logical = psutil.cpu_count() cores = psutil.cpu_count(logical=False) if cores is None: raise unittest.SkipTest("cpu_count_cores() is None") if WINDOWS and sys.getwindowsversion()[:2] <= (6, 1): # <= Vista self.assertIsNone(cores) else: self.assertGreaterEqual(cores, 1) self.assertGreaterEqual(logical, cores) def test_cpu_count_none(self): # https://github.com/giampaolo/psutil/issues/1085 for val in (-1, 0, None): with mock.patch( 'psutil._psplatform.cpu_count_logical', return_value=val ) as m: self.assertIsNone(psutil.cpu_count()) assert m.called with mock.patch( 'psutil._psplatform.cpu_count_cores', return_value=val ) as m: self.assertIsNone(psutil.cpu_count(logical=False)) assert m.called def test_cpu_times(self): # Check type, value >= 0, str(). total = 0 times = psutil.cpu_times() sum(times) for cp_time in times: self.assertIsInstance(cp_time, float) self.assertGreaterEqual(cp_time, 0.0) total += cp_time self.assertAlmostEqual(total, sum(times), places=6) str(times) # CPU times are always supposed to increase over time # or at least remain the same and that's because time # cannot go backwards. # Surprisingly sometimes this might not be the case (at # least on Windows and Linux), see: # https://github.com/giampaolo/psutil/issues/392 # https://github.com/giampaolo/psutil/issues/645 # if not WINDOWS: # last = psutil.cpu_times() # for x in range(100): # new = psutil.cpu_times() # for field in new._fields: # new_t = getattr(new, field) # last_t = getattr(last, field) # self.assertGreaterEqual(new_t, last_t, # msg="%s %s" % (new_t, last_t)) # last = new def test_cpu_times_time_increases(self): # Make sure time increases between calls. t1 = sum(psutil.cpu_times()) stop_at = time.time() + GLOBAL_TIMEOUT while time.time() < stop_at: t2 = sum(psutil.cpu_times()) if t2 > t1: return raise self.fail("time remained the same") def test_per_cpu_times(self): # Check type, value >= 0, str(). for times in psutil.cpu_times(percpu=True): total = 0 sum(times) for cp_time in times: self.assertIsInstance(cp_time, float) self.assertGreaterEqual(cp_time, 0.0) total += cp_time self.assertAlmostEqual(total, sum(times), places=6) str(times) self.assertEqual( len(psutil.cpu_times(percpu=True)[0]), len(psutil.cpu_times(percpu=False)), ) # Note: in theory CPU times are always supposed to increase over # time or remain the same but never go backwards. In practice # sometimes this is not the case. # This issue seemd to be afflict Windows: # https://github.com/giampaolo/psutil/issues/392 # ...but it turns out also Linux (rarely) behaves the same. # last = psutil.cpu_times(percpu=True) # for x in range(100): # new = psutil.cpu_times(percpu=True) # for index in range(len(new)): # newcpu = new[index] # lastcpu = last[index] # for field in newcpu._fields: # new_t = getattr(newcpu, field) # last_t = getattr(lastcpu, field) # self.assertGreaterEqual( # new_t, last_t, msg="%s %s" % (lastcpu, newcpu)) # last = new def test_per_cpu_times_2(self): # Simulate some work load then make sure time have increased # between calls. tot1 = psutil.cpu_times(percpu=True) giveup_at = time.time() + GLOBAL_TIMEOUT while True: if time.time() >= giveup_at: return self.fail("timeout") tot2 = psutil.cpu_times(percpu=True) for t1, t2 in zip(tot1, tot2): t1, t2 = psutil._cpu_busy_time(t1), psutil._cpu_busy_time(t2) difference = t2 - t1 if difference >= 0.05: return @unittest.skipIf(CI_TESTING and OPENBSD, "unreliable on OPENBSD + CI") def test_cpu_times_comparison(self): # Make sure the sum of all per cpu times is almost equal to # base "one cpu" times. On OpenBSD the sum of per-CPUs is # higher for some reason. base = psutil.cpu_times() per_cpu = psutil.cpu_times(percpu=True) summed_values = base._make([sum(num) for num in zip(*per_cpu)]) for field in base._fields: with self.subTest(field=field, base=base, per_cpu=per_cpu): self.assertAlmostEqual( getattr(base, field), getattr(summed_values, field), delta=1, ) def _test_cpu_percent(self, percent, last_ret, new_ret): try: self.assertIsInstance(percent, float) self.assertGreaterEqual(percent, 0.0) self.assertIsNot(percent, -0.0) self.assertLessEqual(percent, 100.0 * psutil.cpu_count()) except AssertionError as err: raise AssertionError( "\n%s\nlast=%s\nnew=%s" % (err, pprint.pformat(last_ret), pprint.pformat(new_ret)) ) def test_cpu_percent(self): last = psutil.cpu_percent(interval=0.001) for _ in range(100): new = psutil.cpu_percent(interval=None) self._test_cpu_percent(new, last, new) last = new with self.assertRaises(ValueError): psutil.cpu_percent(interval=-1) def test_per_cpu_percent(self): last = psutil.cpu_percent(interval=0.001, percpu=True) self.assertEqual(len(last), psutil.cpu_count()) for _ in range(100): new = psutil.cpu_percent(interval=None, percpu=True) for percent in new: self._test_cpu_percent(percent, last, new) last = new with self.assertRaises(ValueError): psutil.cpu_percent(interval=-1, percpu=True) def test_cpu_times_percent(self): last = psutil.cpu_times_percent(interval=0.001) for _ in range(100): new = psutil.cpu_times_percent(interval=None) for percent in new: self._test_cpu_percent(percent, last, new) self._test_cpu_percent(sum(new), last, new) last = new with self.assertRaises(ValueError): psutil.cpu_times_percent(interval=-1) def test_per_cpu_times_percent(self): last = psutil.cpu_times_percent(interval=0.001, percpu=True) self.assertEqual(len(last), psutil.cpu_count()) for _ in range(100): new = psutil.cpu_times_percent(interval=None, percpu=True) for cpu in new: for percent in cpu: self._test_cpu_percent(percent, last, new) self._test_cpu_percent(sum(cpu), last, new) last = new def test_per_cpu_times_percent_negative(self): # see: https://github.com/giampaolo/psutil/issues/645 psutil.cpu_times_percent(percpu=True) zero_times = [ x._make([0 for x in range(len(x._fields))]) for x in psutil.cpu_times(percpu=True) ] with mock.patch('psutil.cpu_times', return_value=zero_times): for cpu in psutil.cpu_times_percent(percpu=True): for percent in cpu: self._test_cpu_percent(percent, None, None) def test_cpu_stats(self): # Tested more extensively in per-platform test modules. infos = psutil.cpu_stats() self.assertEqual( infos._fields, ('ctx_switches', 'interrupts', 'soft_interrupts', 'syscalls'), ) for name in infos._fields: value = getattr(infos, name) self.assertGreaterEqual(value, 0) # on AIX, ctx_switches is always 0 if not AIX and name in ('ctx_switches', 'interrupts'): self.assertGreater(value, 0) # TODO: remove this once 1892 is fixed @unittest.skipIf( MACOS and platform.machine() == 'arm64', "skipped due to #1892" ) @unittest.skipIf(not HAS_CPU_FREQ, "not supported") def test_cpu_freq(self): def check_ls(ls): for nt in ls: self.assertEqual(nt._fields, ('current', 'min', 'max')) if nt.max != 0.0: self.assertLessEqual(nt.current, nt.max) for name in nt._fields: value = getattr(nt, name) self.assertIsInstance(value, (int, long, float)) self.assertGreaterEqual(value, 0) ls = psutil.cpu_freq(percpu=True) if FREEBSD and not ls: raise unittest.SkipTest("returns empty list on FreeBSD") assert ls, ls check_ls([psutil.cpu_freq(percpu=False)]) if LINUX: self.assertEqual(len(ls), psutil.cpu_count()) @unittest.skipIf(not HAS_GETLOADAVG, "not supported") def test_getloadavg(self): loadavg = psutil.getloadavg() self.assertEqual(len(loadavg), 3) for load in loadavg: self.assertIsInstance(load, float) self.assertGreaterEqual(load, 0.0) class TestDiskAPIs(PsutilTestCase): @unittest.skipIf(PYPY and not IS_64BIT, "unreliable on PYPY32 + 32BIT") def test_disk_usage(self): usage = psutil.disk_usage(os.getcwd()) self.assertEqual(usage._fields, ('total', 'used', 'free', 'percent')) assert usage.total > 0, usage assert usage.used > 0, usage assert usage.free > 0, usage assert usage.total > usage.used, usage assert usage.total > usage.free, usage assert 0 <= usage.percent <= 100, usage.percent if hasattr(shutil, 'disk_usage'): # py >= 3.3, see: http://bugs.python.org/issue12442 shutil_usage = shutil.disk_usage(os.getcwd()) tolerance = 5 * 1024 * 1024 # 5MB self.assertEqual(usage.total, shutil_usage.total) self.assertAlmostEqual( usage.free, shutil_usage.free, delta=tolerance ) if not MACOS_12PLUS: # see https://github.com/giampaolo/psutil/issues/2147 self.assertAlmostEqual( usage.used, shutil_usage.used, delta=tolerance ) # if path does not exist OSError ENOENT is expected across # all platforms fname = self.get_testfn() with self.assertRaises(FileNotFoundError): psutil.disk_usage(fname) @unittest.skipIf(not ASCII_FS, "not an ASCII fs") def test_disk_usage_unicode(self): # See: https://github.com/giampaolo/psutil/issues/416 with self.assertRaises(UnicodeEncodeError): psutil.disk_usage(UNICODE_SUFFIX) def test_disk_usage_bytes(self): psutil.disk_usage(b'.') def test_disk_partitions(self): def check_ntuple(nt): self.assertIsInstance(nt.device, str) self.assertIsInstance(nt.mountpoint, str) self.assertIsInstance(nt.fstype, str) self.assertIsInstance(nt.opts, str) # all = False ls = psutil.disk_partitions(all=False) self.assertTrue(ls, msg=ls) for disk in ls: check_ntuple(disk) if WINDOWS and 'cdrom' in disk.opts: continue if not POSIX: assert os.path.exists(disk.device), disk else: # we cannot make any assumption about this, see: # http://goo.gl/p9c43 disk.device # noqa # on modern systems mount points can also be files assert os.path.exists(disk.mountpoint), disk assert disk.fstype, disk # all = True ls = psutil.disk_partitions(all=True) self.assertTrue(ls, msg=ls) for disk in psutil.disk_partitions(all=True): check_ntuple(disk) if not WINDOWS and disk.mountpoint: try: os.stat(disk.mountpoint) except OSError as err: if GITHUB_ACTIONS and MACOS and err.errno == errno.EIO: continue # http://mail.python.org/pipermail/python-dev/ # 2012-June/120787.html if err.errno not in (errno.EPERM, errno.EACCES): raise else: assert os.path.exists(disk.mountpoint), disk # --- def find_mount_point(path): path = os.path.abspath(path) while not os.path.ismount(path): path = os.path.dirname(path) return path.lower() mount = find_mount_point(__file__) mounts = [ x.mountpoint.lower() for x in psutil.disk_partitions(all=True) if x.mountpoint ] self.assertIn(mount, mounts) @unittest.skipIf( LINUX and not os.path.exists('/proc/diskstats'), '/proc/diskstats not available on this linux version', ) @unittest.skipIf( CI_TESTING and not psutil.disk_io_counters(), "unreliable on CI" ) # no visible disks def test_disk_io_counters(self): def check_ntuple(nt): self.assertEqual(nt[0], nt.read_count) self.assertEqual(nt[1], nt.write_count) self.assertEqual(nt[2], nt.read_bytes) self.assertEqual(nt[3], nt.write_bytes) if not (OPENBSD or NETBSD): self.assertEqual(nt[4], nt.read_time) self.assertEqual(nt[5], nt.write_time) if LINUX: self.assertEqual(nt[6], nt.read_merged_count) self.assertEqual(nt[7], nt.write_merged_count) self.assertEqual(nt[8], nt.busy_time) elif FREEBSD: self.assertEqual(nt[6], nt.busy_time) for name in nt._fields: assert getattr(nt, name) >= 0, nt ret = psutil.disk_io_counters(perdisk=False) assert ret is not None, "no disks on this system?" check_ntuple(ret) ret = psutil.disk_io_counters(perdisk=True) # make sure there are no duplicates self.assertEqual(len(ret), len(set(ret))) for key in ret: assert key, key check_ntuple(ret[key]) def test_disk_io_counters_no_disks(self): # Emulate a case where no disks are installed, see: # https://github.com/giampaolo/psutil/issues/1062 with mock.patch( 'psutil._psplatform.disk_io_counters', return_value={} ) as m: self.assertIsNone(psutil.disk_io_counters(perdisk=False)) self.assertEqual(psutil.disk_io_counters(perdisk=True), {}) assert m.called class TestNetAPIs(PsutilTestCase): @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') def test_net_io_counters(self): def check_ntuple(nt): self.assertEqual(nt[0], nt.bytes_sent) self.assertEqual(nt[1], nt.bytes_recv) self.assertEqual(nt[2], nt.packets_sent) self.assertEqual(nt[3], nt.packets_recv) self.assertEqual(nt[4], nt.errin) self.assertEqual(nt[5], nt.errout) self.assertEqual(nt[6], nt.dropin) self.assertEqual(nt[7], nt.dropout) assert nt.bytes_sent >= 0, nt assert nt.bytes_recv >= 0, nt assert nt.packets_sent >= 0, nt assert nt.packets_recv >= 0, nt assert nt.errin >= 0, nt assert nt.errout >= 0, nt assert nt.dropin >= 0, nt assert nt.dropout >= 0, nt ret = psutil.net_io_counters(pernic=False) check_ntuple(ret) ret = psutil.net_io_counters(pernic=True) self.assertNotEqual(ret, []) for key in ret: self.assertTrue(key) self.assertIsInstance(key, str) check_ntuple(ret[key]) @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') def test_net_io_counters_no_nics(self): # Emulate a case where no NICs are installed, see: # https://github.com/giampaolo/psutil/issues/1062 with mock.patch( 'psutil._psplatform.net_io_counters', return_value={} ) as m: self.assertIsNone(psutil.net_io_counters(pernic=False)) self.assertEqual(psutil.net_io_counters(pernic=True), {}) assert m.called @unittest.skipIf(QEMU_USER, 'QEMU user not supported') def test_net_if_addrs(self): nics = psutil.net_if_addrs() assert nics, nics nic_stats = psutil.net_if_stats() # Not reliable on all platforms (net_if_addrs() reports more # interfaces). # self.assertEqual(sorted(nics.keys()), # sorted(psutil.net_io_counters(pernic=True).keys())) families = set([socket.AF_INET, socket.AF_INET6, psutil.AF_LINK]) for nic, addrs in nics.items(): self.assertIsInstance(nic, str) self.assertEqual(len(set(addrs)), len(addrs)) for addr in addrs: self.assertIsInstance(addr.family, int) self.assertIsInstance(addr.address, str) self.assertIsInstance(addr.netmask, (str, type(None))) self.assertIsInstance(addr.broadcast, (str, type(None))) self.assertIn(addr.family, families) if PY3 and not PYPY: self.assertIsInstance(addr.family, enum.IntEnum) if nic_stats[nic].isup: # Do not test binding to addresses of interfaces # that are down if addr.family == socket.AF_INET: s = socket.socket(addr.family) with contextlib.closing(s): s.bind((addr.address, 0)) elif addr.family == socket.AF_INET6: info = socket.getaddrinfo( addr.address, 0, socket.AF_INET6, socket.SOCK_STREAM, 0, socket.AI_PASSIVE, )[0] af, socktype, proto, _canonname, sa = info s = socket.socket(af, socktype, proto) with contextlib.closing(s): s.bind(sa) for ip in ( addr.address, addr.netmask, addr.broadcast, addr.ptp, ): if ip is not None: # TODO: skip AF_INET6 for now because I get: # AddressValueError: Only hex digits permitted in # u'c6f3%lxcbr0' in u'fe80::c8e0:fff:fe54:c6f3%lxcbr0' if addr.family != socket.AF_INET6: check_net_address(ip, addr.family) # broadcast and ptp addresses are mutually exclusive if addr.broadcast: self.assertIsNone(addr.ptp) elif addr.ptp: self.assertIsNone(addr.broadcast) if BSD or MACOS or SUNOS: if hasattr(socket, "AF_LINK"): self.assertEqual(psutil.AF_LINK, socket.AF_LINK) elif LINUX: self.assertEqual(psutil.AF_LINK, socket.AF_PACKET) elif WINDOWS: self.assertEqual(psutil.AF_LINK, -1) def test_net_if_addrs_mac_null_bytes(self): # Simulate that the underlying C function returns an incomplete # MAC address. psutil is supposed to fill it with null bytes. # https://github.com/giampaolo/psutil/issues/786 if POSIX: ret = [('em1', psutil.AF_LINK, '06:3d:29', None, None, None)] else: ret = [('em1', -1, '06-3d-29', None, None, None)] with mock.patch( 'psutil._psplatform.net_if_addrs', return_value=ret ) as m: addr = psutil.net_if_addrs()['em1'][0] assert m.called if POSIX: self.assertEqual(addr.address, '06:3d:29:00:00:00') else: self.assertEqual(addr.address, '06-3d-29-00-00-00') @unittest.skipIf(QEMU_USER, 'QEMU user not supported') def test_net_if_stats(self): nics = psutil.net_if_stats() assert nics, nics all_duplexes = ( psutil.NIC_DUPLEX_FULL, psutil.NIC_DUPLEX_HALF, psutil.NIC_DUPLEX_UNKNOWN, ) for name, stats in nics.items(): self.assertIsInstance(name, str) isup, duplex, speed, mtu, flags = stats self.assertIsInstance(isup, bool) self.assertIn(duplex, all_duplexes) self.assertIn(duplex, all_duplexes) self.assertGreaterEqual(speed, 0) self.assertGreaterEqual(mtu, 0) self.assertIsInstance(flags, str) @unittest.skipIf( not (LINUX or BSD or MACOS), "LINUX or BSD or MACOS specific" ) def test_net_if_stats_enodev(self): # See: https://github.com/giampaolo/psutil/issues/1279 with mock.patch( 'psutil._psutil_posix.net_if_mtu', side_effect=OSError(errno.ENODEV, ""), ) as m: ret = psutil.net_if_stats() self.assertEqual(ret, {}) assert m.called class TestSensorsAPIs(PsutilTestCase): @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") def test_sensors_temperatures(self): temps = psutil.sensors_temperatures() for name, entries in temps.items(): self.assertIsInstance(name, str) for entry in entries: self.assertIsInstance(entry.label, str) if entry.current is not None: self.assertGreaterEqual(entry.current, 0) if entry.high is not None: self.assertGreaterEqual(entry.high, 0) if entry.critical is not None: self.assertGreaterEqual(entry.critical, 0) @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") def test_sensors_temperatures_fahreneit(self): d = {'coretemp': [('label', 50.0, 60.0, 70.0)]} with mock.patch( "psutil._psplatform.sensors_temperatures", return_value=d ) as m: temps = psutil.sensors_temperatures(fahrenheit=True)['coretemp'][0] assert m.called self.assertEqual(temps.current, 122.0) self.assertEqual(temps.high, 140.0) self.assertEqual(temps.critical, 158.0) @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") @unittest.skipIf(not HAS_BATTERY, "no battery") def test_sensors_battery(self): ret = psutil.sensors_battery() self.assertGreaterEqual(ret.percent, 0) self.assertLessEqual(ret.percent, 100) if ret.secsleft not in ( psutil.POWER_TIME_UNKNOWN, psutil.POWER_TIME_UNLIMITED, ): self.assertGreaterEqual(ret.secsleft, 0) else: if ret.secsleft == psutil.POWER_TIME_UNLIMITED: self.assertTrue(ret.power_plugged) self.assertIsInstance(ret.power_plugged, bool) @unittest.skipIf(not HAS_SENSORS_FANS, "not supported") def test_sensors_fans(self): fans = psutil.sensors_fans() for name, entries in fans.items(): self.assertIsInstance(name, str) for entry in entries: self.assertIsInstance(entry.label, str) self.assertIsInstance(entry.current, (int, long)) self.assertGreaterEqual(entry.current, 0) if __name__ == '__main__': from psutil.tests.runner import run_from_name run_from_name(__file__)
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