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# Copyright (c) 2017 Cable Television Laboratories, Inc. ("CableLabs")
# and others. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import pkg_resources
import unittest
import shutil
import uuid
from snaps import file_utils
from snaps.openstack.tests import openstack_tests
__author__ = 'spisarski'
class FileUtilsTests(unittest.TestCase):
"""
Tests the methods in file_utils.py
"""
def setUp(self):
guid = self.__class__.__name__ + '-' + str(uuid.uuid4())
self.tmp_dir = 'tmp/'
self.test_dir = self.tmp_dir + str(guid)
if not os.path.exists(self.test_dir):
os.makedirs(self.test_dir)
self.tmpFile = self.test_dir + '/bar.txt'
self.tmp_file_opened = None
def tearDown(self):
if self.tmp_file_opened:
self.tmp_file_opened.close()
if os.path.exists(self.test_dir) and os.path.isdir(self.test_dir):
shutil.rmtree(self.test_dir)
def testFileIsDirectory(self):
"""
Ensure the file_utils.fileExists() method returns false with a
directory
"""
result = file_utils.file_exists(self.test_dir)
self.assertFalse(result)
def testFileNotExist(self):
"""
Ensure the file_utils.fileExists() method returns false with a bogus
file
"""
result = file_utils.file_exists('/foo/bar.txt')
self.assertFalse(result)
def testFileExists(self):
"""
Ensure the file_utils.fileExists() method returns false with a
directory
"""
if not os.path.exists(self.tmpFile):
self.tmp_file_opened = open(self.tmpFile, 'wb')
if not os.path.exists(self.tmpFile):
os.makedirs(self.tmpFile)
result = file_utils.file_exists(self.tmpFile)
self.assertTrue(result)
def testDownloadBadUrl(self):
"""
Tests the file_utils.download() method when given a bad URL
"""
with self.assertRaises(Exception):
file_utils.download('http://bunkUrl.com/foo/bar.iso',
self.test_dir)
def testDownloadBadDir(self):
"""
Tests the file_utils.download() method when given a bad URL
"""
with self.assertRaises(Exception):
file_utils.download(openstack_tests.CIRROS_DEFAULT_IMAGE_URL,
'/foo/bar')
def testCirrosImageDownload(self):
"""
Tests the file_utils.download() method when given a good Cirros QCOW2
URL
"""
image_file = file_utils.download(
openstack_tests.CIRROS_DEFAULT_IMAGE_URL, self.test_dir)
self.assertIsNotNone(image_file)
self.assertTrue(
image_file.name.endswith("cirros-0.3.4-x86_64-disk.img"))
self.assertTrue(image_file.name.startswith(self.test_dir))
def testReadOSEnvFile(self):
"""
Tests that the OS Environment file is correctly parsed
:return:
"""
rc_file_path = pkg_resources.resource_filename(
'snaps.openstack.tests.conf', 'overcloudrc_test')
os_env_dict = file_utils.read_os_env_file(rc_file_path)
self.assertEqual('test_pw', os_env_dict['OS_PASSWORD'])
self.assertEqual('http://foo:5000/v2.0/', os_env_dict['OS_AUTH_URL'])
self.assertEqual('admin', os_env_dict['OS_USERNAME'])
self.assertEqual('admin', os_env_dict['OS_TENANT_NAME'])
def test_write_str_to_file(self):
"""
Ensure the file_utils.fileExists() method returns false with a
directory
"""
test_val = 'test string'
test_file = file_utils.save_string_to_file(
test_val, self.tmpFile)
result1 = file_utils.file_exists(self.tmpFile)
self.assertTrue(result1)
result2 = file_utils.file_exists(test_file.name)
self.assertTrue(result2)
file_contents = file_utils.read_file(self.tmpFile)
self.assertEqual(test_val, file_contents)
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