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210 lines
6.3 KiB
210 lines
6.3 KiB
"""Support code for distutils test cases."""
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import os
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import sys
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import shutil
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import tempfile
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import unittest
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import sysconfig
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from copy import deepcopy
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from test.support import os_helper
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from distutils import log
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from distutils.log import DEBUG, INFO, WARN, ERROR, FATAL
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from distutils.core import Distribution
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class LoggingSilencer(object):
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def setUp(self):
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super().setUp()
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self.threshold = log.set_threshold(log.FATAL)
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# catching warnings
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# when log will be replaced by logging
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# we won't need such monkey-patch anymore
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self._old_log = log.Log._log
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log.Log._log = self._log
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self.logs = []
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def tearDown(self):
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log.set_threshold(self.threshold)
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log.Log._log = self._old_log
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super().tearDown()
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def _log(self, level, msg, args):
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if level not in (DEBUG, INFO, WARN, ERROR, FATAL):
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raise ValueError('%s wrong log level' % str(level))
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if not isinstance(msg, str):
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raise TypeError("msg should be str, not '%.200s'"
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% (type(msg).__name__))
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self.logs.append((level, msg, args))
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def get_logs(self, *levels):
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return [msg % args for level, msg, args
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in self.logs if level in levels]
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def clear_logs(self):
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self.logs = []
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class TempdirManager(object):
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"""Mix-in class that handles temporary directories for test cases.
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This is intended to be used with unittest.TestCase.
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"""
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def setUp(self):
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super().setUp()
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self.old_cwd = os.getcwd()
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self.tempdirs = []
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def tearDown(self):
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# Restore working dir, for Solaris and derivatives, where rmdir()
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# on the current directory fails.
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os.chdir(self.old_cwd)
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super().tearDown()
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while self.tempdirs:
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tmpdir = self.tempdirs.pop()
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os_helper.rmtree(tmpdir)
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def mkdtemp(self):
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"""Create a temporary directory that will be cleaned up.
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Returns the path of the directory.
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"""
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d = tempfile.mkdtemp()
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self.tempdirs.append(d)
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return d
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def write_file(self, path, content='xxx'):
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"""Writes a file in the given path.
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path can be a string or a sequence.
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"""
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if isinstance(path, (list, tuple)):
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path = os.path.join(*path)
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f = open(path, 'w')
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try:
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f.write(content)
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finally:
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f.close()
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def create_dist(self, pkg_name='foo', **kw):
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"""Will generate a test environment.
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This function creates:
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- a Distribution instance using keywords
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- a temporary directory with a package structure
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It returns the package directory and the distribution
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instance.
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"""
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tmp_dir = self.mkdtemp()
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pkg_dir = os.path.join(tmp_dir, pkg_name)
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os.mkdir(pkg_dir)
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dist = Distribution(attrs=kw)
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return pkg_dir, dist
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class DummyCommand:
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"""Class to store options for retrieval via set_undefined_options()."""
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def __init__(self, **kwargs):
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for kw, val in kwargs.items():
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setattr(self, kw, val)
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def ensure_finalized(self):
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pass
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class EnvironGuard(object):
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def setUp(self):
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super(EnvironGuard, self).setUp()
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self.old_environ = deepcopy(os.environ)
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def tearDown(self):
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for key, value in self.old_environ.items():
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if os.environ.get(key) != value:
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os.environ[key] = value
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for key in tuple(os.environ.keys()):
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if key not in self.old_environ:
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del os.environ[key]
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super(EnvironGuard, self).tearDown()
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def copy_xxmodule_c(directory):
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"""Helper for tests that need the xxmodule.c source file.
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Example use:
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def test_compile(self):
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copy_xxmodule_c(self.tmpdir)
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self.assertIn('xxmodule.c', os.listdir(self.tmpdir))
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If the source file can be found, it will be copied to *directory*. If not,
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the test will be skipped. Errors during copy are not caught.
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"""
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filename = _get_xxmodule_path()
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if filename is None:
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raise unittest.SkipTest('cannot find xxmodule.c (test must run in '
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'the python build dir)')
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shutil.copy(filename, directory)
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def _get_xxmodule_path():
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srcdir = sysconfig.get_config_var('srcdir')
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candidates = [
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# use installed copy if available
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os.path.join(os.path.dirname(__file__), 'xxmodule.c'),
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# otherwise try using copy from build directory
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os.path.join(srcdir, 'Modules', 'xxmodule.c'),
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# srcdir mysteriously can be $srcdir/Lib/distutils/tests when
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# this file is run from its parent directory, so walk up the
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# tree to find the real srcdir
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os.path.join(srcdir, '..', '..', '..', 'Modules', 'xxmodule.c'),
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]
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for path in candidates:
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if os.path.exists(path):
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return path
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def fixup_build_ext(cmd):
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"""Function needed to make build_ext tests pass.
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When Python was built with --enable-shared on Unix, -L. is not enough to
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find libpython<blah>.so, because regrtest runs in a tempdir, not in the
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source directory where the .so lives.
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When Python was built with in debug mode on Windows, build_ext commands
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need their debug attribute set, and it is not done automatically for
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some reason.
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This function handles both of these things. Example use:
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cmd = build_ext(dist)
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support.fixup_build_ext(cmd)
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cmd.ensure_finalized()
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Unlike most other Unix platforms, Mac OS X embeds absolute paths
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to shared libraries into executables, so the fixup is not needed there.
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"""
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if os.name == 'nt':
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cmd.debug = sys.executable.endswith('_d.exe')
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elif sysconfig.get_config_var('Py_ENABLE_SHARED'):
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# To further add to the shared builds fun on Unix, we can't just add
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# library_dirs to the Extension() instance because that doesn't get
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# plumbed through to the final compiler command.
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runshared = sysconfig.get_config_var('RUNSHARED')
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if runshared is None:
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cmd.library_dirs = ['.']
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else:
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if sys.platform == 'darwin':
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cmd.library_dirs = []
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else:
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name, equals, value = runshared.partition('=')
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cmd.library_dirs = [d for d in value.split(os.pathsep) if d]
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