| #!/usr/bin/env python |
| |
| # Copyright (c) 2009, Jay Loden, 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. |
| |
| """BSD specific tests. These are implicitly run by test_psutil.py.""" |
| |
| import unittest |
| import subprocess |
| import time |
| import re |
| import sys |
| import os |
| |
| import psutil |
| |
| from psutil._compat import PY3 |
| from test_psutil import DEVNULL |
| from test_psutil import (reap_children, get_test_subprocess, sh, which, |
| skipUnless) |
| |
| |
| PAGESIZE = os.sysconf("SC_PAGE_SIZE") |
| TOLERANCE = 200 * 1024 # 200 KB |
| MUSE_AVAILABLE = which('muse') |
| |
| |
| def sysctl(cmdline): |
| """Expects a sysctl command with an argument and parse the result |
| returning only the value of interest. |
| """ |
| result = sh("sysctl " + cmdline) |
| result = result[result.find(": ") + 2:] |
| try: |
| return int(result) |
| except ValueError: |
| return result |
| |
| def muse(field): |
| """Thin wrapper around 'muse' cmdline utility.""" |
| out = sh('muse', stderr=DEVNULL) |
| for line in out.split('\n'): |
| if line.startswith(field): |
| break |
| else: |
| raise ValueError("line not found") |
| return int(line.split()[1]) |
| |
| |
| class BSDSpecificTestCase(unittest.TestCase): |
| |
| def setUp(self): |
| self.pid = get_test_subprocess().pid |
| |
| def tearDown(self): |
| reap_children() |
| |
| def assert_eq_w_tol(self, first, second, tolerance): |
| difference = abs(first - second) |
| if difference <= tolerance: |
| return |
| msg = '%r != %r within %r delta (%r difference)' \ |
| % (first, second, tolerance, difference) |
| raise AssertionError(msg) |
| |
| def test_BOOT_TIME(self): |
| s = sysctl('sysctl kern.boottime') |
| s = s[s.find(" sec = ") + 7:] |
| s = s[:s.find(',')] |
| btime = int(s) |
| self.assertEqual(btime, psutil.BOOT_TIME) |
| |
| def test_process_create_time(self): |
| cmdline = "ps -o lstart -p %s" %self.pid |
| p = subprocess.Popen(cmdline, shell=1, stdout=subprocess.PIPE) |
| output = p.communicate()[0] |
| if PY3: |
| output = str(output, sys.stdout.encoding) |
| start_ps = output.replace('STARTED', '').strip() |
| start_psutil = psutil.Process(self.pid).create_time |
| start_psutil = time.strftime("%a %b %e %H:%M:%S %Y", |
| time.localtime(start_psutil)) |
| self.assertEqual(start_ps, start_psutil) |
| |
| 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)) |
| |
| def test_memory_maps(self): |
| out = sh('procstat -v %s' % self.pid) |
| maps = psutil.Process(self.pid).get_memory_maps(grouped=False) |
| lines = out.split('\n')[1:] |
| while lines: |
| line = lines.pop() |
| fields = line.split() |
| _, start, stop, perms, res = fields[:5] |
| map = maps.pop() |
| self.assertEqual("%s-%s" % (start, stop), map.addr) |
| self.assertEqual(int(res), map.rss) |
| if not map.path.startswith('['): |
| self.assertEqual(fields[10], map.path) |
| |
| # --- virtual_memory(); tests against sysctl |
| |
| def test_vmem_total(self): |
| syst = sysctl("sysctl vm.stats.vm.v_page_count") * PAGESIZE |
| self.assertEqual(psutil.virtual_memory().total, syst) |
| |
| def test_vmem_active(self): |
| syst = sysctl("vm.stats.vm.v_active_count") * PAGESIZE |
| self.assert_eq_w_tol(psutil.virtual_memory().active, syst, TOLERANCE) |
| |
| def test_vmem_inactive(self): |
| syst = sysctl("vm.stats.vm.v_inactive_count") * PAGESIZE |
| self.assert_eq_w_tol(psutil.virtual_memory().inactive, syst, TOLERANCE) |
| |
| def test_vmem_wired(self): |
| syst = sysctl("vm.stats.vm.v_wire_count") * PAGESIZE |
| self.assert_eq_w_tol(psutil.virtual_memory().wired, syst, TOLERANCE) |
| |
| def test_vmem_cached(self): |
| syst = sysctl("vm.stats.vm.v_cache_count") * PAGESIZE |
| self.assert_eq_w_tol(psutil.virtual_memory().cached, syst, TOLERANCE) |
| |
| def test_vmem_free(self): |
| syst = sysctl("vm.stats.vm.v_free_count") * PAGESIZE |
| self.assert_eq_w_tol(psutil.virtual_memory().free, syst, TOLERANCE) |
| |
| def test_vmem_buffers(self): |
| syst = sysctl("vfs.bufspace") |
| self.assert_eq_w_tol(psutil.virtual_memory().buffers, syst, TOLERANCE) |
| |
| # --- virtual_memory(); tests against muse |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_total(self): |
| num = muse('Total') |
| self.assertEqual(psutil.virtual_memory().total, num) |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_active(self): |
| num = muse('Active') |
| self.assert_eq_w_tol(psutil.virtual_memory().active, num, TOLERANCE) |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_inactive(self): |
| num = muse('Inactive') |
| self.assert_eq_w_tol(psutil.virtual_memory().inactive, num, TOLERANCE) |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_wired(self): |
| num = muse('Wired') |
| self.assert_eq_w_tol(psutil.virtual_memory().wired, num, TOLERANCE) |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_cached(self): |
| num = muse('Cache') |
| self.assert_eq_w_tol(psutil.virtual_memory().cached, num, TOLERANCE) |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_free(self): |
| num = muse('Free') |
| self.assert_eq_w_tol(psutil.virtual_memory().free, num, TOLERANCE) |
| |
| @skipUnless(MUSE_AVAILABLE) |
| def test_buffers(self): |
| num = muse('Buffer') |
| self.assert_eq_w_tol(psutil.virtual_memory().buffers, num, TOLERANCE) |
| |
| |
| if __name__ == '__main__': |
| test_suite = unittest.TestSuite() |
| test_suite.addTest(unittest.makeSuite(BSDSpecificTestCase)) |
| unittest.TextTestRunner(verbosity=2).run(test_suite) |
