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#!/usr/bin/env python # 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. """OSX specific tests.""" import os import re import time import psutil from psutil import OSX from psutil.tests import create_zombie_proc from psutil.tests import get_test_subprocess from psutil.tests import MEMORY_TOLERANCE 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 sh from psutil.tests import unittest PAGESIZE = os.sysconf("SC_PAGE_SIZE") if OSX else None def sysctl(cmdline): """Expects a sysctl command with an argument and parse the result returning only the value of interest. """ out = sh(cmdline) result = out.split()[1] try: return int(result) except ValueError: return result def vm_stat(field): """Wrapper around 'vm_stat' cmdline utility.""" out = sh('vm_stat') for line in out.split('\n'): if field in line: break else: raise ValueError("line not found") return int(re.search(r'\d+', line).group(0)) * PAGESIZE # http://code.activestate.com/recipes/578019/ def human2bytes(s): SYMBOLS = { 'customary': ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'), } init = s num = "" while s and s[0:1].isdigit() or s[0:1] == '.': num += s[0] s = s[1:] num = float(num) letter = s.strip() for name, sset in SYMBOLS.items(): if letter in sset: break else: if letter == 'k': sset = SYMBOLS['customary'] letter = letter.upper() else: raise ValueError("can't interpret %r" % init) prefix = {sset[0]: 1} for i, s in enumerate(sset[1:]): prefix[s] = 1 << (i + 1) * 10 return int(num * prefix[letter]) @unittest.skipIf(not OSX, "OSX only") class TestProcess(unittest.TestCase): @classmethod def setUpClass(cls): cls.pid = get_test_subprocess().pid @classmethod def tearDownClass(cls): reap_children() def test_process_create_time(self): output = sh("ps -o lstart -p %s" % self.pid) start_ps = output.replace('STARTED', '').strip() hhmmss = start_ps.split(' ')[-2] year = start_ps.split(' ')[-1] start_psutil = psutil.Process(self.pid).create_time() self.assertEqual( hhmmss, time.strftime("%H:%M:%S", time.localtime(start_psutil))) self.assertEqual( year, time.strftime("%Y", time.localtime(start_psutil))) @unittest.skipIf(not OSX, "OSX only") class TestZombieProcessAPIs(unittest.TestCase): @classmethod def setUpClass(cls): zpid = create_zombie_proc() cls.p = psutil.Process(zpid) @classmethod def tearDownClass(cls): reap_children(recursive=True) def test_pidtask_info(self): self.assertEqual(self.p.status(), psutil.STATUS_ZOMBIE) self.p.ppid() self.p.uids() self.p.gids() self.p.terminal() self.p.create_time() def test_exe(self): self.assertRaises(psutil.ZombieProcess, self.p.exe) def test_cmdline(self): self.assertRaises(psutil.ZombieProcess, self.p.cmdline) def test_environ(self): self.assertRaises(psutil.ZombieProcess, self.p.environ) def test_cwd(self): self.assertRaises(psutil.ZombieProcess, self.p.cwd) def test_memory_full_info(self): self.assertRaises(psutil.ZombieProcess, self.p.memory_full_info) def test_cpu_times(self): self.assertRaises(psutil.ZombieProcess, self.p.cpu_times) def test_num_ctx_switches(self): self.assertRaises(psutil.ZombieProcess, self.p.num_ctx_switches) def test_num_threads(self): self.assertRaises(psutil.ZombieProcess, self.p.num_threads) def test_open_files(self): self.assertRaises(psutil.ZombieProcess, self.p.open_files) def test_connections(self): self.assertRaises(psutil.ZombieProcess, self.p.connections) def test_num_fds(self): self.assertRaises(psutil.ZombieProcess, self.p.num_fds) def test_threads(self): self.assertRaises((psutil.ZombieProcess, psutil.AccessDenied), self.p.threads) def test_memory_maps(self): self.assertRaises(psutil.ZombieProcess, self.p.memory_maps) @unittest.skipIf(not OSX, "OSX only") class TestSystemAPIs(unittest.TestCase): # --- disk def test_disks(self): # test psutil.disk_usage() and psutil.disk_partitions() # against "df -a" def df(path): out = sh('df -k "%s"' % path).strip() lines = out.split('\n') lines.pop(0) line = lines.pop(0) dev, total, used, free = line.split()[:4] if dev == 'none': dev = '' total = int(total) * 1024 used = int(used) * 1024 free = int(free) * 1024 return dev, total, used, free for part in psutil.disk_partitions(all=False): usage = psutil.disk_usage(part.mountpoint) dev, total, used, free = df(part.mountpoint) self.assertEqual(part.device, dev) self.assertEqual(usage.total, total) # 10 MB tollerance if abs(usage.free - free) > 10 * 1024 * 1024: self.fail("psutil=%s, df=%s" % usage.free, free) if abs(usage.used - used) > 10 * 1024 * 1024: self.fail("psutil=%s, df=%s" % usage.used, used) # --- cpu def test_cpu_count_logical(self): num = sysctl("sysctl hw.logicalcpu") self.assertEqual(num, psutil.cpu_count(logical=True)) def test_cpu_count_physical(self): num = sysctl("sysctl hw.physicalcpu") self.assertEqual(num, psutil.cpu_count(logical=False)) def test_cpu_freq(self): freq = psutil.cpu_freq() self.assertEqual( freq.current * 1000 * 1000, sysctl("sysctl hw.cpufrequency")) self.assertEqual( freq.min * 1000 * 1000, sysctl("sysctl hw.cpufrequency_min")) self.assertEqual( freq.max * 1000 * 1000, sysctl("sysctl hw.cpufrequency_max")) # --- virtual mem def test_vmem_total(self): sysctl_hwphymem = sysctl('sysctl hw.memsize') self.assertEqual(sysctl_hwphymem, psutil.virtual_memory().total) @retry_before_failing() def test_vmem_free(self): vmstat_val = vm_stat("free") psutil_val = psutil.virtual_memory().free self.assertAlmostEqual(psutil_val, vmstat_val, delta=MEMORY_TOLERANCE) @retry_before_failing() def test_vmem_available(self): vmstat_val = vm_stat("inactive") + vm_stat("free") psutil_val = psutil.virtual_memory().available self.assertAlmostEqual(psutil_val, vmstat_val, delta=MEMORY_TOLERANCE) @retry_before_failing() def test_vmem_active(self): vmstat_val = vm_stat("active") psutil_val = psutil.virtual_memory().active self.assertAlmostEqual(psutil_val, vmstat_val, delta=MEMORY_TOLERANCE) @retry_before_failing() def test_vmem_inactive(self): vmstat_val = vm_stat("inactive") psutil_val = psutil.virtual_memory().inactive self.assertAlmostEqual(psutil_val, vmstat_val, delta=MEMORY_TOLERANCE) @retry_before_failing() def test_vmem_wired(self): vmstat_val = vm_stat("wired") psutil_val = psutil.virtual_memory().wired self.assertAlmostEqual(psutil_val, vmstat_val, delta=MEMORY_TOLERANCE) # --- swap mem @retry_before_failing() def test_swapmem_sin(self): vmstat_val = vm_stat("Pageins") psutil_val = psutil.swap_memory().sin self.assertEqual(psutil_val, vmstat_val) @retry_before_failing() def test_swapmem_sout(self): vmstat_val = vm_stat("Pageout") psutil_val = psutil.swap_memory().sout self.assertEqual(psutil_val, vmstat_val) # Not very reliable. # def test_swapmem_total(self): # out = sh('sysctl vm.swapusage') # out = out.replace('vm.swapusage: ', '') # total, used, free = re.findall('\d+.\d+\w', out) # psutil_smem = psutil.swap_memory() # self.assertEqual(psutil_smem.total, human2bytes(total)) # self.assertEqual(psutil_smem.used, human2bytes(used)) # self.assertEqual(psutil_smem.free, human2bytes(free)) # --- network def test_net_if_stats(self): for name, stats in psutil.net_if_stats().items(): try: out = sh("ifconfig %s" % name) except RuntimeError: pass else: self.assertEqual(stats.isup, 'RUNNING' in out, msg=out) self.assertEqual(stats.mtu, int(re.findall(r'mtu (\d+)', out)[0])) if __name__ == '__main__': run_test_module_by_name(__file__)
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