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# Copyright 2018 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 errno
import os
import shutil
import tempfile
import unittest
from py_utils import file_util
class FileUtilTest(unittest.TestCase):
def setUp(self):
self._tempdir = tempfile.mkdtemp()
def tearDown(self):
shutil.rmtree(self._tempdir)
def testCopySimple(self):
source_path = os.path.join(self._tempdir, 'source')
with open(source_path, 'w') as f:
f.write('data')
dest_path = os.path.join(self._tempdir, 'dest')
self.assertFalse(os.path.exists(dest_path))
file_util.CopyFileWithIntermediateDirectories(source_path, dest_path)
self.assertTrue(os.path.exists(dest_path))
self.assertEqual('data', open(dest_path, 'r').read())
def testCopyMakeDirectories(self):
source_path = os.path.join(self._tempdir, 'source')
with open(source_path, 'w') as f:
f.write('data')
dest_path = os.path.join(self._tempdir, 'path', 'to', 'dest')
self.assertFalse(os.path.exists(dest_path))
file_util.CopyFileWithIntermediateDirectories(source_path, dest_path)
self.assertTrue(os.path.exists(dest_path))
self.assertEqual('data', open(dest_path, 'r').read())
def testCopyOverwrites(self):
source_path = os.path.join(self._tempdir, 'source')
with open(source_path, 'w') as f:
f.write('source_data')
dest_path = os.path.join(self._tempdir, 'dest')
with open(dest_path, 'w') as f:
f.write('existing_data')
file_util.CopyFileWithIntermediateDirectories(source_path, dest_path)
self.assertEqual('source_data', open(dest_path, 'r').read())
def testRaisesError(self):
source_path = os.path.join(self._tempdir, 'source')
with open(source_path, 'w') as f:
f.write('data')
dest_path = ""
with self.assertRaises(OSError) as cm:
file_util.CopyFileWithIntermediateDirectories(source_path, dest_path)
self.assertEqual(errno.ENOENT, cm.exception.error_code)
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