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# Copyright 2014 SUSE Linux GmbH.
# 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.
#
from unittest.mock import Mock
from unittest.mock import patch
from testtools import ExpectedException
from trove.common import exception
from trove.common import utils
from trove.tests.unittests import trove_testtools
from trove.tests.util import utils as test_utils
import webob
class TestUtils(trove_testtools.TestCase):
def setUp(self):
super(TestUtils, self).setUp()
self.orig_utils_execute = utils.execute
self.orig_utils_log_error = utils.LOG.error
def tearDown(self):
super(TestUtils, self).tearDown()
utils.execute = self.orig_utils_execute
utils.LOG.error = self.orig_utils_log_error
def test_throws_process_execution_error(self):
utils.execute = Mock(
side_effect=exception.ProcessExecutionError(
description='test-desc', exit_code=42, stderr='err',
stdout='out', cmd='test'))
with ExpectedException(
exception.ProcessExecutionError,
"test-desc\nCommand: test\nExit code: 42\n"
"Stdout: 'out'\nStderr: 'err'"):
utils.execute_with_timeout('/usr/bin/foo')
def test_log_error_when_log_output_on_error_is_true(self):
utils.execute = Mock(
side_effect=exception.ProcessExecutionError(
description='test-desc', exit_code=42, stderr='err',
stdout='out', cmd='test'))
utils.LOG.error = Mock()
with ExpectedException(
exception.ProcessExecutionError,
"test-desc\nCommand: test\nExit code: 42\n"
"Stdout: 'out'\nStderr: 'err'"):
utils.execute_with_timeout(
'/usr/bin/foo', log_output_on_error=True)
utils.LOG.error.assert_called_with(
u"Command '%(cmd)s' failed. %(description)s Exit code: "
u"%(exit_code)s\nstderr: %(stderr)s\nstdout: %(stdout)s",
{'description': 'test-desc', 'stderr': 'err', 'exit_code': 42,
'stdout': 'out', 'cmd': 'test'})
def test_unpack_singleton(self):
self.assertEqual([1, 2, 3], utils.unpack_singleton([1, 2, 3]))
self.assertEqual(0, utils.unpack_singleton([0]))
self.assertEqual('test', utils.unpack_singleton('test'))
self.assertEqual('test', utils.unpack_singleton(['test']))
self.assertEqual([], utils.unpack_singleton([]))
self.assertIsNone(utils.unpack_singleton(None))
self.assertEqual([None, None], utils.unpack_singleton([None, None]))
self.assertEqual('test', utils.unpack_singleton([['test']]))
self.assertEqual([1, 2, 3], utils.unpack_singleton([[1, 2, 3]]))
self.assertEqual(1, utils.unpack_singleton([[[1]]]))
self.assertEqual([[1], [2]], utils.unpack_singleton([[1], [2]]))
self.assertEqual(['a', 'b'], utils.unpack_singleton(['a', 'b']))
def test_pagination_limit(self):
self.assertEqual(5, utils.pagination_limit(5, 9))
self.assertEqual(5, utils.pagination_limit(9, 5))
def test_format_output(self):
data = [
['', ''],
['Single line', 'Single line'],
['Long line no breaks ' * 10, 'Long line no breaks ' * 10],
['Long line. Has breaks ' * 5,
'Long line.\nHas breaks ' * 2 + 'Long line. Has breaks ' * 3],
['Long line with semi: ' * 4,
'Long line with semi:\n ' +
'Long line with semi: ' * 3],
['Long line with brack (' * 4,
'Long line with brack\n(' +
'Long line with brack (' * 3],
]
for index, datum in enumerate(data):
self.assertEqual(datum[1], utils.format_output(datum[0]),
"Error formatting line %d of data" % index)
def test_to_gb(self):
result = utils.to_gb(123456789)
self.assertEqual(0.11, result)
def test_to_gb_small(self):
result = utils.to_gb(2)
self.assertEqual(0.01, result)
def test_to_gb_zero(self):
result = utils.to_gb(0)
self.assertEqual(0.0, result)
def test_to_mb(self):
result = utils.to_mb(123456789)
self.assertEqual(117.74, result)
def test_to_mb_small(self):
result = utils.to_mb(2)
self.assertEqual(0.01, result)
def test_to_mb_zero(self):
result = utils.to_mb(0)
self.assertEqual(0.0, result)
@patch('trove.common.utils.LOG')
def test_retry_decorator(self, _):
class TestEx1(Exception):
pass
class TestEx2(Exception):
pass
class TestEx3(Exception):
pass
class TestExecutor(object):
def _test_foo(self, arg):
return arg
@test_utils.retry(TestEx1, retries=5, delay_fun=lambda n: 0.2)
def test_foo_1(self, arg):
return self._test_foo(arg)
@test_utils.retry((TestEx1, TestEx2), delay_fun=lambda n: 0.2)
def test_foo_2(self, arg):
return self._test_foo(arg)
def assert_retry(fun, side_effect, exp_call_num, exp_exception):
with patch.object(te, '_test_foo', side_effect=side_effect) as f:
mock_arg = Mock()
if exp_exception:
self.assertRaises(exp_exception, fun, mock_arg)
else:
fun(mock_arg)
f.assert_called_with(mock_arg)
self.assertEqual(exp_call_num, f.call_count)
te = TestExecutor()
assert_retry(te.test_foo_1, [TestEx1, None], 2, None)
assert_retry(te.test_foo_1, TestEx3, 1, TestEx3)
assert_retry(te.test_foo_1, TestEx1, 5, TestEx1)
assert_retry(te.test_foo_1, [TestEx1, TestEx3], 2, TestEx3)
assert_retry(te.test_foo_2, [TestEx1, TestEx2, None], 3, None)
assert_retry(te.test_foo_2, TestEx3, 1, TestEx3)
assert_retry(te.test_foo_2, TestEx2, 3, TestEx2)
assert_retry(te.test_foo_2, [TestEx1, TestEx3, TestEx2], 2, TestEx3)
def test_req_to_text(self):
req = webob.Request.blank('/')
expected = 'GET / HTTP/1.0\r\nHost: localhost:80'
self.assertEqual(expected, utils.req_to_text(req))
# add a header containing unicode characters
req.headers.update({
'X-Auth-Project-Id': '\u6d4b\u8bd5'})
expected = ('GET / HTTP/1.0\r\nHost: localhost:80\r\n'
'X-Auth-Project-Id: \u6d4b\u8bd5')
self.assertEqual(expected, utils.req_to_text(req))
def test_validate_command(self):
string1 = "hello_world"
string2 = "hello world"
string3 = "hello@world_123"
string4 = "example.com/databse/mysql:5.7"
string5 = 'test --db-user="$(touch /rce_successful.txt)"'
self.assertIsNone(utils.validate_command(string1))
self.assertRaises(exception.InvalidValue,
utils.validate_command,
string2)
self.assertIsNone(utils.validate_command(string3))
self.assertIsNone(utils.validate_command(string4))
self.assertRaises(exception.InvalidValue,
utils.validate_command,
string5)
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