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# Copyright 2016 Amazon.com, Inc. or its affiliates. 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. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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 io
import locale
import os
import signal
import pytest
from awscli.compat import (
compat_open,
compat_shell_quote,
ensure_text_type,
get_popen_kwargs_for_pager_cmd,
getpreferredencoding,
ignore_user_entered_signals,
set_preferred_output_encoding,
validate_preferred_output_encoding,
)
from awscli.testutils import FileCreator, mock, skip_if_windows, unittest
class TestEnsureText(unittest.TestCase):
def test_string(self):
value = 'foo'
response = ensure_text_type(value)
self.assertIsInstance(response, str)
self.assertEqual(response, 'foo')
def test_binary(self):
value = b'bar'
response = ensure_text_type(value)
self.assertIsInstance(response, str)
self.assertEqual(response, 'bar')
def test_unicode(self):
value = 'baz'
response = ensure_text_type(value)
self.assertIsInstance(response, str)
self.assertEqual(response, 'baz')
def test_non_ascii(self):
value = b'\xe2\x9c\x93'
response = ensure_text_type(value)
self.assertIsInstance(response, str)
self.assertEqual(response, '\u2713')
def test_non_string_or_bytes_raises_error(self):
value = 500
with self.assertRaises(ValueError):
ensure_text_type(value)
@pytest.mark.parametrize(
"input_string, expected_output",
(
('', '""'),
('"', '\\"'),
('\\', '\\'),
('\\a', '\\a'),
('\\\\', '\\\\'),
('\\"', '\\\\\\"'),
('\\\\"', '\\\\\\\\\\"'),
('foo bar', '"foo bar"'),
('foo\tbar', '"foo\tbar"'),
),
)
def test_compat_shell_quote_windows(input_string, expected_output):
assert compat_shell_quote(input_string, "win32") == expected_output
@pytest.mark.parametrize(
"input_string, expected_output",
(
('', "''"),
('*', "'*'"),
('foo', 'foo'),
('foo bar', "'foo bar'"),
('foo\tbar', "'foo\tbar'"),
('foo\nbar', "'foo\nbar'"),
("foo'bar", '\'foo\'"\'"\'bar\''),
),
)
def test_comat_shell_quote_linux(input_string, expected_output):
assert compat_shell_quote(input_string, "linux2") == expected_output
@pytest.mark.parametrize(
"input_string, expected_output",
(
('', "''"),
('*', "'*'"),
('foo', 'foo'),
('foo bar', "'foo bar'"),
('foo\tbar', "'foo\tbar'"),
('foo\nbar', "'foo\nbar'"),
("foo'bar", '\'foo\'"\'"\'bar\''),
),
)
def test_comat_shell_quote_darwin(input_string, expected_output):
assert compat_shell_quote(input_string, "darwin") == expected_output
class TestGetPopenPagerCmd(unittest.TestCase):
@mock.patch('awscli.compat.is_windows', True)
@mock.patch('awscli.compat.default_pager', 'more')
def test_windows(self):
kwargs = get_popen_kwargs_for_pager_cmd()
self.assertEqual({'args': 'more', 'shell': True}, kwargs)
@mock.patch('awscli.compat.is_windows', True)
@mock.patch('awscli.compat.default_pager', 'more')
def test_windows_with_specific_pager(self):
kwargs = get_popen_kwargs_for_pager_cmd('less -R')
self.assertEqual({'args': 'less -R', 'shell': True}, kwargs)
@mock.patch('awscli.compat.is_windows', False)
@mock.patch('awscli.compat.default_pager', 'less -R')
def test_non_windows(self):
kwargs = get_popen_kwargs_for_pager_cmd()
self.assertEqual({'args': ['less', '-R']}, kwargs)
@mock.patch('awscli.compat.is_windows', False)
@mock.patch('awscli.compat.default_pager', 'less -R')
def test_non_windows_specific_pager(self):
kwargs = get_popen_kwargs_for_pager_cmd('more')
self.assertEqual({'args': ['more']}, kwargs)
class TestIgnoreUserSignals(unittest.TestCase):
@skip_if_windows("These signals are not supported for windows")
def test_ignore_signal_sigint(self):
with ignore_user_entered_signals():
try:
os.kill(os.getpid(), signal.SIGINT)
except KeyboardInterrupt:
self.fail(
'The ignore_user_entered_signals context '
'manager should have ignored'
)
@skip_if_windows("These signals are not supported for windows")
def test_ignore_signal_sigquit(self):
with ignore_user_entered_signals():
self.assertEqual(signal.getsignal(signal.SIGQUIT), signal.SIG_IGN)
os.kill(os.getpid(), signal.SIGQUIT)
@skip_if_windows("These signals are not supported for windows")
def test_ignore_signal_sigtstp(self):
with ignore_user_entered_signals():
self.assertEqual(signal.getsignal(signal.SIGTSTP), signal.SIG_IGN)
os.kill(os.getpid(), signal.SIGTSTP)
class TestGetPreferredEncoding(unittest.TestCase):
@mock.patch.dict(os.environ, {'AWS_CLI_FILE_ENCODING': 'cp1252'})
def test_getpreferredencoding_with_env_var(self):
encoding = getpreferredencoding()
self.assertEqual(encoding, 'cp1252')
@mock.patch('locale.setlocale', side_effect=['POSIX', 'C'])
def test_getpreferredencoding_wo_env_var_with_ctype_posix(self, *args):
encoding = getpreferredencoding()
self.assertEqual(encoding, 'UTF-8')
encoding = getpreferredencoding()
self.assertEqual(encoding, 'UTF-8')
@mock.patch('locale.setlocale', return_value='English_United States.1252')
@mock.patch('locale.getpreferredencoding')
def test_runs_locale_getpreferredencoding_wo_env_var_and_posix(
self, getprefedencoding, *args
):
getpreferredencoding()
getprefedencoding.assert_called_once_with()
class TestCompatOpenWithAccessPermissions(unittest.TestCase):
def setUp(self):
self.files = FileCreator()
def tearDown(self):
self.files.remove_all()
@skip_if_windows('Permissions tests only supported on mac/linux')
def test_can_create_file_with_acess_permissions(self):
file_path = os.path.join(self.files.rootdir, "foo_600.txt")
with compat_open(file_path, access_permissions=0o600, mode='w') as f:
f.write('bar')
self.assertEqual(os.stat(file_path).st_mode & 0o777, 0o600)
def test_not_override_existing_file_access_permissions(self):
file_path = os.path.join(self.files.rootdir, "foo.txt")
with open(file_path, mode='w') as f:
f.write('bar')
expected_st_mode = os.stat(file_path).st_mode
with compat_open(file_path, access_permissions=0o600, mode='w') as f:
f.write('bar')
self.assertEqual(os.stat(file_path).st_mode, expected_st_mode)
@pytest.mark.parametrize(
'env_vars, expected_encoding',
[
({}, 'cp1252'),
({'AWS_CLI_OUTPUT_ENCODING': 'UTF-8'}, 'UTF-8'),
({'PYTHONUTF8': '1'}, 'UTF-8'),
],
)
def test_set_preferred_output_encoding(env_vars, expected_encoding):
stdout_b = io.BytesIO()
stdout = io.TextIOWrapper(stdout_b, encoding="cp1252")
with mock.patch.dict(os.environ, env_vars):
set_preferred_output_encoding(stdout)
assert stdout.encoding == expected_encoding
def test_validate_preferred_output_encoding():
with mock.patch.dict(os.environ, {'AWS_CLI_OUTPUT_ENCODING': 'invalid'}):
with pytest.raises(ValueError):
validate_preferred_output_encoding()
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