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#!/usr/bin/env python
# Copyright (c) 2011 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.
"""Tests for pyauto_utils."""
import glob
import os
import shutil
import tempfile
import unittest
import pyauto_utils
class ExistingPathReplacerTest(unittest.TestCase):
"""Tests for ExistingPathReplacer."""
def setUp(self):
self._workdir = tempfile.mkdtemp()
self.assertEqual(0, len(os.listdir(self._workdir)))
def tearDown(self):
shutil.rmtree(self._workdir, ignore_errors=True)
def _CreateFile(self, path):
fp = open(path, 'w')
fp.write('magic')
fp.close()
def _IsOrigFile(self, path):
if not os.path.isfile(path):
return False
return open(path).read() == 'magic'
def testNonExistingFile(self):
"""Test when the requested file does not exist."""
myfile = os.path.join(self._workdir, 'myfile.txt')
self.assertFalse(os.path.isfile(myfile))
r = pyauto_utils.ExistingPathReplacer(myfile, path_type='file')
self.assertTrue(os.path.isfile(myfile))
del r
self.assertEqual(0, len(os.listdir(self._workdir)))
def testExistingFile(self):
"""Test when the requested file exists."""
myfile = os.path.join(self._workdir, 'myfile.txt')
self._CreateFile(myfile)
self.assertTrue(self._IsOrigFile(myfile))
r = pyauto_utils.ExistingPathReplacer(myfile, path_type='file')
self.assertFalse(self._IsOrigFile(myfile))
self.assertEqual(2, len(os.listdir(self._workdir)))
del r
self.assertEqual(1, len(os.listdir(self._workdir)))
self.assertTrue(self._IsOrigFile(myfile))
def testNonExistingDir(self):
"""Test when the requested dir does not exist."""
mydir = os.path.join(self._workdir, 'mydir')
self.assertFalse(os.path.isdir(mydir))
r = pyauto_utils.ExistingPathReplacer(mydir, path_type='dir')
self.assertTrue(os.path.isdir(mydir))
self.assertEqual(0, len(os.listdir(mydir)))
del r
self.assertFalse(os.path.isdir(mydir))
def testExistingDir(self):
"""Test when the requested dir exists."""
# Create a dir with one file
mydir = os.path.join(self._workdir, 'mydir')
os.makedirs(mydir)
self.assertEqual(1, len(os.listdir(self._workdir)))
myfile = os.path.join(mydir, 'myfile.txt')
open(myfile, 'w').close()
self.assertTrue(os.path.isfile(myfile))
r = pyauto_utils.ExistingPathReplacer(mydir)
self.assertEqual(2, len(os.listdir(self._workdir)))
self.assertFalse(os.path.isfile(myfile))
del r
self.assertEqual(1, len(os.listdir(self._workdir)))
self.assertTrue(os.path.isfile(myfile))
if __name__ == '__main__':
unittest.main()
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