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# Copyright (c) 2017 Intel Corporation
#
# 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.
#
from __future__ import absolute_import
import unittest
from contextlib import contextmanager
import mock
from tests.unit import STL_MOCKS
STLClient = mock.MagicMock()
stl_patch = mock.patch.dict("sys.modules", STL_MOCKS)
stl_patch.start()
if stl_patch:
from yardstick.network_services.vnf_generic.vnf.iniparser import ParseError
from yardstick.network_services.vnf_generic.vnf.iniparser import LineParser
from yardstick.network_services.vnf_generic.vnf.iniparser import BaseParser
from yardstick.network_services.vnf_generic.vnf.iniparser import ConfigParser
PARSE_TEXT_1 = """\
[section1]
key1=value1
list1: value2
value3
value4
key3='single quote value' ; comment here
key4=
[section2] ; comment with #2 other symbol
# here is a comment line
list2: value5
key with no value # mixed comment ; symbols
; another comment line
key5=
[section1] ; reopen a section!
key2="double quote value"
"""
PARSE_TEXT_2 = """\
[section1]
list1 = item1
item2
ended by eof"""
PARSE_TEXT_BAD_1 = """\
key1=value1
"""
PARSE_TEXT_BAD_2 = """\
[section1
"""
PARSE_TEXT_BAD_3 = """\
[]
"""
PARSE_TEXT_BAD_4 = """\
[section1]
bad continuation
"""
PARSE_TEXT_BAD_5 = """\
[section1]
=value with no key
"""
class TestParseError(unittest.TestCase):
def test___str__(self):
error = ParseError('a', 2, 'c')
self.assertEqual(str(error), "at line 2, a: 'c'")
class TestLineParser(unittest.TestCase):
def test___repr__(self):
line_parser = LineParser('', 101)
self.assertIsNotNone(repr(line_parser))
def test_error_invalid_assignment(self):
line_parser = LineParser('', 101)
self.assertIsNotNone(line_parser.error_invalid_assignment())
class TestBaseParser(unittest.TestCase):
@staticmethod
def make_open(text_blob):
@contextmanager
def internal_open(*args, **kwargs):
yield text_blob.split('\n')
return internal_open
def test_parse(self):
parser = BaseParser()
parser.parse()
def test_parse_empty_string(self):
parser = BaseParser()
self.assertIsNone(parser.parse(''))
def test_not_implemented_methods(self):
parser = BaseParser()
with self.assertRaises(NotImplementedError):
parser.assignment('key', 'value', LineParser('', 100))
with self.assertRaises(NotImplementedError):
parser.new_section('section')
with self.assertRaises(NotImplementedError):
parser.comment('comment')
class TestConfigParser(unittest.TestCase):
@staticmethod
def make_open(text_blob):
@contextmanager
def internal_open(*args, **kwargs):
yield text_blob.split('\n')
return internal_open
@mock.patch('yardstick.network_services.vnf_generic.vnf.iniparser.open')
def test_parse(self, mock_open):
mock_open.side_effect = self.make_open(PARSE_TEXT_1)
existing_data = [['section0', [['key0', 'value0']]]]
config_parser = ConfigParser('my_file', existing_data)
config_parser.parse()
expected = [
[
'section0',
[
['key0', 'value0'],
],
],
[
'section1',
[
['key1', 'value1'],
['list1', 'value2\nvalue3\nvalue4'],
['key3', 'single quote value'],
['key4', ''],
['key2', 'double quote value'],
],
],
[
'section2',
[
['list2', 'value5'],
['key with no value', '@'],
['key5', ''],
],
],
]
self.assertEqual(config_parser.sections, expected)
self.assertIsNotNone(config_parser.find_section('section1'))
self.assertIsNone(config_parser.find_section('section3'))
self.assertEqual(config_parser.find_section_index('section1'), 1)
self.assertEqual(config_parser.find_section_index('section3'), -1)
@mock.patch('yardstick.network_services.vnf_generic.vnf.iniparser.open')
def test_parse_2(self, mock_open):
mock_open.side_effect = self.make_open(PARSE_TEXT_2)
config_parser = ConfigParser('my_file')
config_parser.parse()
expected = [
[
'section1',
[
['list1', 'item1\nitem2\nended by eof'],
],
],
]
self.assertEqual(config_parser.sections, expected)
@mock.patch('yardstick.network_services.vnf_generic.vnf.iniparser.open')
def test_parse_negative(self, mock_open):
bad_text_dict = {
'no section': PARSE_TEXT_BAD_1,
'incomplete section': PARSE_TEXT_BAD_2,
'empty section name': PARSE_TEXT_BAD_3,
'bad_continuation': PARSE_TEXT_BAD_4,
'value with no key': PARSE_TEXT_BAD_5,
}
for bad_reason, bad_text in bad_text_dict.items():
mock_open.side_effect = self.make_open(bad_text)
config_parser = ConfigParser('my_file', [])
try:
# TODO: replace with assertRaises, when the UT framework supports
# advanced messages when exceptions fail to occur
config_parser.parse()
except ParseError:
pass
else:
self.fail('\n'.join([bad_reason, bad_text, str(config_parser.sections)]))
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