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# Copyright 2012 OpenStack LLC.
# 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 sys
import StringIO
import testtools
from glanceclient.common import utils
class TestUtils(testtools.TestCase):
def test_make_size_human_readable(self):
self.assertEqual("106B", utils.make_size_human_readable(106))
self.assertEqual("1000kB", utils.make_size_human_readable(1024000))
self.assertEqual("1MB", utils.make_size_human_readable(1048576))
self.assertEqual("1.4GB", utils.make_size_human_readable(1476395008))
self.assertEqual("9.3MB", utils.make_size_human_readable(9761280))
def test_get_new_file_size(self):
size = 98304
file_obj = StringIO.StringIO('X' * size)
try:
self.assertEqual(utils.get_file_size(file_obj), size)
# Check that get_file_size didn't change original file position.
self.assertEqual(file_obj.tell(), 0)
finally:
file_obj.close()
def test_get_consumed_file_size(self):
size, consumed = 98304, 304
file_obj = StringIO.StringIO('X' * size)
file_obj.seek(consumed)
try:
self.assertEqual(utils.get_file_size(file_obj), size)
# Check that get_file_size didn't change original file position.
self.assertEqual(file_obj.tell(), consumed)
finally:
file_obj.close()
def test_prettytable(self):
class Struct:
def __init__(self, **entries):
self.__dict__.update(entries)
# test that the prettytable output is wellformatted (left-aligned)
columns = ['ID', 'Name']
val = ['Name1', 'another', 'veeeery long']
images = [Struct(**{'id': i ** 16, 'name': val[i]})
for i in range(len(val))]
saved_stdout = sys.stdout
try:
sys.stdout = output_list = StringIO.StringIO()
utils.print_list(images, columns)
sys.stdout = output_dict = StringIO.StringIO()
utils.print_dict({'K': 'k', 'Key': 'Value'})
finally:
sys.stdout = saved_stdout
self.assertEqual(output_list.getvalue(), '''\
+-------+--------------+
| ID | Name |
+-------+--------------+
| | Name1 |
| 1 | another |
| 65536 | veeeery long |
+-------+--------------+
''')
self.assertEqual(output_dict.getvalue(), '''\
+----------+-------+
| Property | Value |
+----------+-------+
| K | k |
| Key | Value |
+----------+-------+
''')
def test_exception_to_str(self):
class FakeException(Exception):
def __str__(self):
raise UnicodeError()
ret = utils.exception_to_str(Exception('error message'))
self.assertEqual(ret, 'error message')
ret = utils.exception_to_str(Exception('\xa5 error message'))
self.assertEqual(ret, ' error message')
ret = utils.exception_to_str(FakeException('\xa5 error message'))
self.assertEqual(ret, "Caught '%(exception)s' exception." %
{'exception': 'FakeException'})
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