Adding upstream version 2.8.4.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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381 changed files with 40831 additions and 0 deletions
245
tests/test_python/test_watcher.py
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245
tests/test_python/test_watcher.py
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# vim:fileencoding=utf-8:noet
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from __future__ import (unicode_literals, division, absolute_import, print_function)
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import shutil
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import os
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from time import sleep
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from functools import partial
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from errno import ENOENT
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from powerline.lib.watcher import create_file_watcher, create_tree_watcher, INotifyError
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from powerline.lib.watcher.uv import UvNotFound
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from powerline import get_fallback_logger
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from powerline.lib.monotonic import monotonic
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from tests.modules import TestCase, SkipTest
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INOTIFY_DIR = 'inotify' + os.path.basename(os.environ.get('PYTHON', ''))
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def clear_dir(dir):
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for root, dirs, files in list(os.walk(dir, topdown=False)):
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for f in files:
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os.remove(os.path.join(root, f))
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for d in dirs:
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os.rmdir(os.path.join(root, d))
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def set_watcher_tests(l):
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byte_tests = (('bytes', True), ('unicode', False))
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for btn, use_bytes in byte_tests:
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def test_inotify_file_watcher(self, use_bytes=use_bytes):
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try:
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w = create_file_watcher(pl=get_fallback_logger(), watcher_type='inotify')
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except INotifyError:
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raise SkipTest('This test is not suitable for a stat based file watcher')
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self.do_test_file_watcher(w, use_bytes)
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def test_uv_file_watcher(self, use_bytes=use_bytes):
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raise SkipTest('Uv watcher tests are not stable')
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try:
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w = create_file_watcher(pl=get_fallback_logger(), watcher_type='uv')
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except UvNotFound:
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raise SkipTest('Pyuv is not available')
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self.do_test_file_watcher(w, use_bytes)
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def test_inotify_tree_watcher(self, use_bytes=use_bytes):
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try:
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tw = create_tree_watcher(get_fallback_logger(), watcher_type='inotify')
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except INotifyError:
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raise SkipTest('INotify is not available')
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self.do_test_tree_watcher(tw, use_bytes)
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def test_uv_tree_watcher(self, use_bytes=use_bytes):
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raise SkipTest('Uv watcher tests are not stable')
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try:
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tw = create_tree_watcher(get_fallback_logger(), 'uv')
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except UvNotFound:
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raise SkipTest('Pyuv is not available')
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self.do_test_tree_watcher(tw, use_bytes)
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def test_inotify_file_watcher_is_watching(self, use_bytes=use_bytes):
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try:
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w = create_file_watcher(pl=get_fallback_logger(), watcher_type='inotify')
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except INotifyError:
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raise SkipTest('INotify is not available')
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self.do_test_file_watcher_is_watching(w, use_bytes)
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def test_stat_file_watcher_is_watching(self, use_bytes=use_bytes):
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w = create_file_watcher(pl=get_fallback_logger(), watcher_type='stat')
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self.do_test_file_watcher_is_watching(w, use_bytes)
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def test_uv_file_watcher_is_watching(self, use_bytes=use_bytes):
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try:
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w = create_file_watcher(pl=get_fallback_logger(), watcher_type='uv')
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except UvNotFound:
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raise SkipTest('Pyuv is not available')
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self.do_test_file_watcher_is_watching(w, use_bytes)
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for wt in ('uv', 'inotify'):
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l['test_{0}_file_watcher_{1}'.format(wt, btn)] = locals()['test_{0}_file_watcher'.format(wt)]
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l['test_{0}_tree_watcher_{1}'.format(wt, btn)] = locals()['test_{0}_tree_watcher'.format(wt)]
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l['test_{0}_file_watcher_is_watching_{1}'.format(wt, btn)] = (
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locals()['test_{0}_file_watcher_is_watching'.format(wt)])
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l['test_{0}_file_watcher_is_watching_{1}'.format('stat', btn)] = (
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locals()['test_{0}_file_watcher_is_watching'.format('stat')])
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class TestFilesystemWatchers(TestCase):
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def do_test_for_change(self, watcher, path):
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st = monotonic()
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while monotonic() - st < 1:
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if watcher(path):
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return
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sleep(0.1)
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self.fail('The change to {0} was not detected'.format(path))
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def do_test_file_watcher(self, w, use_bytes=False):
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try:
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f1, f2, f3 = map(lambda x: os.path.join(INOTIFY_DIR, 'file%d' % x), (1, 2, 3))
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ne = os.path.join(INOTIFY_DIR, 'notexists')
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if use_bytes:
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f1 = f1.encode('utf-8')
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f2 = f2.encode('utf-8')
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f3 = f3.encode('utf-8')
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ne = ne.encode('utf-8')
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with open(f1, 'wb'):
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with open(f2, 'wb'):
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with open(f3, 'wb'):
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pass
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self.assertRaises(OSError, w, ne)
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self.assertTrue(w(f1))
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self.assertTrue(w(f2))
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os.utime(f1, None), os.utime(f2, None)
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self.do_test_for_change(w, f1)
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self.do_test_for_change(w, f2)
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# Repeat once
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os.utime(f1, None), os.utime(f2, None)
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self.do_test_for_change(w, f1)
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self.do_test_for_change(w, f2)
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# Check that no false changes are reported
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self.assertFalse(w(f1), 'Spurious change detected')
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self.assertFalse(w(f2), 'Spurious change detected')
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# Check that open the file with 'w' triggers a change
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with open(f1, 'wb'):
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with open(f2, 'wb'):
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pass
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self.do_test_for_change(w, f1)
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self.do_test_for_change(w, f2)
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# Check that writing to a file with 'a' triggers a change
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with open(f1, 'ab') as f:
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f.write(b'1')
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self.do_test_for_change(w, f1)
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# Check that deleting a file registers as a change
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os.unlink(f1)
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self.do_test_for_change(w, f1)
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# Test that changing the inode of a file does not cause it to stop
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# being watched
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os.rename(f3, f2)
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self.do_test_for_change(w, f2)
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self.assertFalse(w(f2), 'Spurious change detected')
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os.utime(f2, None)
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self.do_test_for_change(w, f2)
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finally:
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clear_dir(INOTIFY_DIR)
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def do_test_tree_watcher(self, tw, use_bytes=False):
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try:
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inotify_dir = INOTIFY_DIR
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subdir = os.path.join(inotify_dir, 'subdir')
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t1 = os.path.join(inotify_dir, 'tree1')
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ts1 = os.path.join(subdir, 'tree1')
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suffix = '1'
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f = os.path.join(subdir, 'f')
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if use_bytes:
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inotify_dir = inotify_dir.encode('utf-8')
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subdir = subdir.encode('utf-8')
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t1 = t1.encode('utf-8')
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ts1 = ts1.encode('utf-8')
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suffix = suffix.encode('utf-8')
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f = f.encode('utf-8')
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os.mkdir(subdir)
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try:
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if tw.watch(inotify_dir).is_dummy:
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raise SkipTest('No tree watcher available')
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except UvNotFound:
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raise SkipTest('Pyuv is not available')
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except INotifyError:
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raise SkipTest('INotify is not available')
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self.assertTrue(tw(inotify_dir))
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self.assertFalse(tw(inotify_dir))
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changed = partial(self.do_test_for_change, tw, inotify_dir)
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open(t1, 'w').close()
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changed()
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open(ts1, 'w').close()
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changed()
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os.unlink(ts1)
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changed()
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os.rmdir(subdir)
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changed()
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os.mkdir(subdir)
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changed()
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os.rename(subdir, subdir + suffix)
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changed()
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shutil.rmtree(subdir + suffix)
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changed()
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os.mkdir(subdir)
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open(f, 'w').close()
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changed()
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with open(f, 'a') as s:
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s.write(' ')
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changed()
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os.rename(f, f + suffix)
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changed()
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finally:
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clear_dir(inotify_dir)
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def do_test_file_watcher_is_watching(self, w, use_bytes=False):
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try:
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f1, f2, f3 = map(lambda x: os.path.join(INOTIFY_DIR, 'file%d' % x), (1, 2, 3))
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ne = os.path.join(INOTIFY_DIR, 'notexists')
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if use_bytes:
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f1 = f1.encode('utf-8')
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f2 = f2.encode('utf-8')
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f3 = f3.encode('utf-8')
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ne = ne.encode('utf-8')
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with open(f1, 'wb'):
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with open(f2, 'wb'):
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with open(f3, 'wb'):
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pass
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self.assertRaises(OSError, w, ne)
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try:
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w(ne)
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except OSError as e:
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self.assertEqual(e.errno, ENOENT)
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self.assertTrue(w(f1))
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self.assertFalse(w.is_watching(ne))
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self.assertTrue(w.is_watching(f1))
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self.assertFalse(w.is_watching(f2))
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finally:
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clear_dir(INOTIFY_DIR)
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set_watcher_tests(locals())
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old_cwd = None
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def setUpModule():
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global old_cwd
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old_cwd = os.getcwd()
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os.chdir(os.path.dirname(os.path.dirname(__file__)))
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os.mkdir(INOTIFY_DIR)
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def tearDownModule():
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shutil.rmtree(INOTIFY_DIR)
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os.chdir(old_cwd)
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if __name__ == '__main__':
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from tests.modules import main
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main()
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