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132 lines
3.4 KiB
Python
132 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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# Tahoe-LAFS -- secure, distributed storage grid
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#
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# Copyright © 2020 The Tahoe-LAFS Software Foundation
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#
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# This file is part of Tahoe-LAFS.
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#
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# See the docs/about.rst file for licensing information.
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"""
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Tests for the ``allmydata.windows``.
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"""
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from __future__ import division
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from __future__ import absolute_import
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from __future__ import print_function
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from __future__ import unicode_literals
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from future.utils import PY2
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if PY2:
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from future.builtins import filter, map, zip, ascii, chr, hex, input, next, oct, open, pow, round, super, bytes, dict, list, object, range, str, max, min # noqa: F401
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from sys import (
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executable,
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)
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from json import (
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load,
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)
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from textwrap import (
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dedent,
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)
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from twisted.python.filepath import (
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FilePath,
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)
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from twisted.python.runtime import (
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platform,
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)
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from testtools import (
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skipUnless,
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)
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from testtools.matchers import (
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MatchesAll,
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AllMatch,
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IsInstance,
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Equals,
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)
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from hypothesis import (
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given,
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)
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from hypothesis.strategies import (
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lists,
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text,
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)
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from .common import (
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SyncTestCase,
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)
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from ..windows.fixups import (
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get_argv,
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)
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@skipUnless(platform.isWindows(), "get_argv is Windows-only")
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class GetArgvTests(SyncTestCase):
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"""
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Tests for ``get_argv``.
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"""
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def test_get_argv_return_type(self):
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"""
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``get_argv`` returns a list of unicode strings
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"""
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# We don't know what this process's command line was so we just make
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# structural assertions here.
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argv = get_argv()
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self.assertThat(
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argv,
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MatchesAll(
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IsInstance(list),
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AllMatch(IsInstance(str)),
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),
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)
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@given(lists(text(min_size=1, max_size=4), min_size=1, max_size=4))
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def test_argv_values(self, argv):
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"""
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``get_argv`` returns a list representing the result of tokenizing the
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"command line" argument string provided to Windows processes.
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"""
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working_path = FilePath(self.mktemp())
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working_path.makedirs()
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save_argv_path = working_path.child("script.py")
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saved_argv_path = working_path.child("data.json")
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with open(save_argv_path.path, "wt") as f:
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# A simple program to save argv to a file. Using the file saves
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# us having to figure out how to reliably get non-ASCII back over
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# stdio which may pose an independent set of challenges. At least
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# file I/O is relatively simple and well-understood.
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f.write(dedent(
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"""
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from allmydata.windows.fixups import (
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get_argv,
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)
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import json
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with open({!r}, "wt") as f:
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f.write(json.dumps(get_argv()))
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""".format(saved_argv_path.path)),
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)
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# Python 2.7 doesn't have good options for launching a process with
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# non-ASCII in its command line.
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from ._win_subprocess import (
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Popen
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)
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from subprocess import (
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PIPE,
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)
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returncode = Popen([executable, save_argv_path.path] + argv, stdin=PIPE, stdout=PIPE, stderr=PIPE).wait()
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self.assertThat(
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0,
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Equals(returncode),
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)
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with open(saved_argv_path.path, "rt") as f:
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saved_argv = load(f)
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self.assertThat(
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argv,
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Equals(saved_argv),
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)
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