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# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import imp
import os.path
import shutil
import sys
import tempfile
import unittest
def _GetDirAbove(dirname):
"""Returns the directory "above" this file containing |dirname| (which must
also be "above" this file)."""
path = os.path.abspath(__file__)
while True:
path, tail = os.path.split(path)
assert tail
if tail == dirname:
return path
try:
imp.find_module("mojom")
except ImportError:
sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
from mojom import fileutil
class FileUtilTest(unittest.TestCase):
def testEnsureDirectoryExists(self):
"""Test that EnsureDirectoryExists fuctions correctly."""
temp_dir = tempfile.mkdtemp()
try:
self.assertTrue(os.path.exists(temp_dir))
# Directory does not exist, yet.
full = os.path.join(temp_dir, "foo", "bar")
self.assertFalse(os.path.exists(full))
# Create the directory.
fileutil.EnsureDirectoryExists(full)
self.assertTrue(os.path.exists(full))
# Trying to create it again does not cause an error.
fileutil.EnsureDirectoryExists(full)
self.assertTrue(os.path.exists(full))
# Bypass check for directory existence to tickle error handling that
# occurs in response to a race.
fileutil.EnsureDirectoryExists(full, always_try_to_create=True)
self.assertTrue(os.path.exists(full))
finally:
shutil.rmtree(temp_dir)
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