def test_load_if_outdated(self):
import os
import time
# modify the directory. If the time between the last modification
# was within the filesystems resolution of mtime, we should have a reload
def modify_dir():
open(TESTFILE, 'w').close()
os.unlink(TESTFILE)
def mtime():
return os.stat(TESTDIR).st_mtime
dir = Directory(TESTDIR)
dir.load()
# If the modification happens to be in the same second as the
# last modification, it will result in mtime having the same
# integer value. So we wait until the resolution is exceeded
# and mtime differs.
old_mtime = mtime()
for i in range(50):
modify_dir()
if old_mtime != mtime(): break
time.sleep(0.1)
else:
# fail after 5 seconds of trying
self.fail(
"Cannot perform test: mtime of TESTDIR is not being updated.")
self.assertTrue(dir.load_if_outdated())
def test_after_content_loaded(self):
import os
# Check whether the directory has the correct list of filenames.
dir = Directory(TESTDIR)
dir.load_content(schedule=False)
self.assertTrue(dir.exists)
self.assertEqual(type(dir.filenames), list)
# Get the filenames you expect it to have and sort both before
# comparing. I don't expect any order after only loading the filenames.
assumed_filenames = os.listdir(TESTDIR)
assumed_filenames = list(
map(lambda str: os.path.join(TESTDIR, str), assumed_filenames))
assumed_filenames.sort()
dir.filenames.sort()
self.assertTrue(len(dir) > 0)
self.assertEqual(dir.filenames, assumed_filenames)
# build a file object for each file in the list assumed_filenames
# and find exactly one equivalent in dir.files
for name in assumed_filenames:
f = File(name)
f.load()
for dirfile in dir.files:
if (f.path == dirfile.path and f.stat == dirfile.stat):
break
else:
self.fail("couldn't find file {0}".format(name))
def test_nonexistant_dir(self):
dir = Directory(NONEXISTANT_DIR)
dir.load_content(schedule=False)
self.assertTrue(dir.content_loaded)
self.assertFalse(dir.exists)
self.assertFalse(dir.accessible)
self.assertEqual(dir.filenames, None)
if not sys.flags.optimize: # asserts are ignored with python -O
self.assertRaises(AssertionError, len, dir)
def test_initial_condition(self):
# Check for the expected initial condition
dir = Directory(TESTDIR)
self.assertEqual(dir.path, TESTDIR)
self.assertFalse(dir.content_loaded)
self.assertEqual(dir.filenames, None)
self.assertEqual(dir.files, None)
if not sys.flags.optimize: # asserts are ignored with python -O
self.assertRaises(AssertionError, len, dir)
