Move watcher tests into a separate file

This commit is contained in:
ZyX 2014-06-29 01:00:44 +04:00
parent 2faa2a254f
commit cb99c06027
2 changed files with 132 additions and 95 deletions

View File

@ -6,20 +6,16 @@ from powerline.lib.humanize_bytes import humanize_bytes
from powerline.lib.vcs import guess, get_fallback_create_watcher
from powerline.lib.threaded import ThreadedSegment, KwThreadedSegment
from powerline.lib.monotonic import monotonic
from powerline.lib.watcher import create_file_watcher, create_tree_watcher, INotifyError
from powerline.lib.vcs.git import git_directory
from powerline import get_fallback_logger
import threading
import os
import sys
import re
import platform
import shutil
from time import sleep
from subprocess import call, PIPE
from functools import partial
from tests import TestCase, SkipTest
from tests.lib import Pl
from tests import TestCase
def thread_number():
@ -379,93 +375,6 @@ class TestLib(TestCase):
self.assertEqual(humanize_bytes(1000000000, si_prefix=False), '953.7 MiB')
class TestFilesystemWatchers(TestCase):
def do_test_for_change(self, watcher, path):
st = monotonic()
while monotonic() - st < 1:
if watcher(path):
return
sleep(0.1)
self.fail('The change to {0} was not detected'.format(path))
def test_file_watcher(self):
try:
w = create_file_watcher(pl=get_fallback_logger(), watcher_type='inotify')
except INotifyError:
raise SkipTest('This test is not suitable for a stat based file watcher')
f1, f2, f3 = map(lambda x: os.path.join(INOTIFY_DIR, 'file%d' % x), (1, 2, 3))
with open(f1, 'wb'):
with open(f2, 'wb'):
with open(f3, 'wb'):
pass
ne = os.path.join(INOTIFY_DIR, 'notexists')
self.assertRaises(OSError, w, ne)
self.assertTrue(w(f1))
self.assertTrue(w(f2))
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Repeat once
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that no false changes are reported
self.assertFalse(w(f1), 'Spurious change detected')
self.assertFalse(w(f2), 'Spurious change detected')
# Check that open the file with 'w' triggers a change
with open(f1, 'wb'):
with open(f2, 'wb'):
pass
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that writing to a file with 'a' triggers a change
with open(f1, 'ab') as f:
f.write(b'1')
self.do_test_for_change(w, f1)
# Check that deleting a file registers as a change
os.unlink(f1)
self.do_test_for_change(w, f1)
# Test that changing the inode of a file does not cause it to stop
# being watched
os.rename(f3, f2)
self.do_test_for_change(w, f2)
self.assertFalse(w(f2), 'Spurious change detected')
os.utime(f2, None)
self.do_test_for_change(w, f2)
def test_tree_watcher(self):
tw = create_tree_watcher(get_fallback_logger())
subdir = os.path.join(INOTIFY_DIR, 'subdir')
os.mkdir(subdir)
if tw.watch(INOTIFY_DIR).is_dummy:
raise SkipTest('No tree watcher available')
self.assertTrue(tw(INOTIFY_DIR))
self.assertFalse(tw(INOTIFY_DIR))
changed = partial(self.do_test_for_change, tw, INOTIFY_DIR)
open(os.path.join(INOTIFY_DIR, 'tree1'), 'w').close()
changed()
open(os.path.join(subdir, 'tree1'), 'w').close()
changed()
os.unlink(os.path.join(subdir, 'tree1'))
changed()
os.rmdir(subdir)
changed()
os.mkdir(subdir)
changed()
os.rename(subdir, subdir + '1')
changed()
shutil.rmtree(subdir + '1')
changed()
os.mkdir(subdir)
f = os.path.join(subdir, 'f')
open(f, 'w').close()
changed()
with open(f, 'a') as s:
s.write(' ')
changed()
os.rename(f, f + '1')
changed()
use_mercurial = use_bzr = (sys.version_info < (3, 0)
and platform.python_implementation() == 'CPython')
@ -635,7 +544,6 @@ old_cwd = None
GIT_REPO = 'git_repo' + os.environ.get('PYTHON', '')
HG_REPO = 'hg_repo' + os.environ.get('PYTHON', '')
BZR_REPO = 'bzr_repo' + os.environ.get('PYTHON', '')
INOTIFY_DIR = 'inotify' + os.environ.get('PYTHON', '')
def setUpModule():
@ -660,13 +568,12 @@ def setUpModule():
call(['bzr', 'config', 'email=Foo <bar@example.org>'], cwd=BZR_REPO)
call(['bzr', 'config', 'nickname=test_powerline'], cwd=BZR_REPO)
call(['bzr', 'config', 'create_signatures=0'], cwd=BZR_REPO)
os.mkdir(INOTIFY_DIR)
def tearDownModule():
global old_cwd
global old_HGRCPATH
for repo_dir in [INOTIFY_DIR, GIT_REPO] + ([HG_REPO] if use_mercurial else []) + ([BZR_REPO] if use_bzr else []):
for repo_dir in [GIT_REPO] + ([HG_REPO] if use_mercurial else []) + ([BZR_REPO] if use_bzr else []):
for root, dirs, files in list(os.walk(repo_dir, topdown=False)):
for file in files:
os.remove(os.path.join(root, file))

130
tests/test_watcher.py Normal file
View File

@ -0,0 +1,130 @@
# vim:fileencoding=utf-8:noet
from __future__ import absolute_import, unicode_literals, print_function, division
from powerline.lib.watcher import create_file_watcher, create_tree_watcher, INotifyError
from powerline import get_fallback_logger
from powerline.lib.monotonic import monotonic
import shutil
from time import sleep
from functools import partial
import os
from tests import TestCase, SkipTest
INOTIFY_DIR = 'inotify' + os.environ.get('PYTHON', '')
class TestFilesystemWatchers(TestCase):
def do_test_for_change(self, watcher, path):
st = monotonic()
while monotonic() - st < 1:
if watcher(path):
return
sleep(0.1)
self.fail('The change to {0} was not detected'.format(path))
def test_file_watcher(self):
try:
w = create_file_watcher(pl=get_fallback_logger(), watcher_type='inotify')
except INotifyError:
raise SkipTest('This test is not suitable for a stat based file watcher')
f1, f2, f3 = map(lambda x: os.path.join(INOTIFY_DIR, 'file%d' % x), (1, 2, 3))
with open(f1, 'wb'):
with open(f2, 'wb'):
with open(f3, 'wb'):
pass
ne = os.path.join(INOTIFY_DIR, 'notexists')
self.assertRaises(OSError, w, ne)
self.assertTrue(w(f1))
self.assertTrue(w(f2))
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Repeat once
os.utime(f1, None), os.utime(f2, None)
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that no false changes are reported
self.assertFalse(w(f1), 'Spurious change detected')
self.assertFalse(w(f2), 'Spurious change detected')
# Check that open the file with 'w' triggers a change
with open(f1, 'wb'):
with open(f2, 'wb'):
pass
self.do_test_for_change(w, f1)
self.do_test_for_change(w, f2)
# Check that writing to a file with 'a' triggers a change
with open(f1, 'ab') as f:
f.write(b'1')
self.do_test_for_change(w, f1)
# Check that deleting a file registers as a change
os.unlink(f1)
self.do_test_for_change(w, f1)
# Test that changing the inode of a file does not cause it to stop
# being watched
os.rename(f3, f2)
self.do_test_for_change(w, f2)
self.assertFalse(w(f2), 'Spurious change detected')
os.utime(f2, None)
self.do_test_for_change(w, f2)
def test_tree_watcher(self):
tw = create_tree_watcher(get_fallback_logger())
subdir = os.path.join(INOTIFY_DIR, 'subdir')
os.mkdir(subdir)
if tw.watch(INOTIFY_DIR).is_dummy:
raise SkipTest('No tree watcher available')
self.assertTrue(tw(INOTIFY_DIR))
self.assertFalse(tw(INOTIFY_DIR))
changed = partial(self.do_test_for_change, tw, INOTIFY_DIR)
open(os.path.join(INOTIFY_DIR, 'tree1'), 'w').close()
changed()
open(os.path.join(subdir, 'tree1'), 'w').close()
changed()
os.unlink(os.path.join(subdir, 'tree1'))
changed()
os.rmdir(subdir)
changed()
os.mkdir(subdir)
changed()
os.rename(subdir, subdir + '1')
changed()
shutil.rmtree(subdir + '1')
changed()
os.mkdir(subdir)
f = os.path.join(subdir, 'f')
open(f, 'w').close()
changed()
with open(f, 'a') as s:
s.write(' ')
changed()
os.rename(f, f + '1')
changed()
old_cwd = None
def setUpModule():
global old_cwd
old_cwd = os.getcwd()
os.chdir(os.path.dirname(__file__))
os.mkdir(INOTIFY_DIR)
def tearDownModule():
for d in [INOTIFY_DIR]:
for root, dirs, files in list(os.walk(d, topdown=False)):
for file in files:
os.remove(os.path.join(root, file))
for dir in dirs:
os.rmdir(os.path.join(root, dir))
os.rmdir(d)
os.chdir(old_cwd)
if __name__ == '__main__':
from tests import main
main()