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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Facilities for helping test code which interacts with Python's module system
to load code.
"""

from __future__ import division, absolute_import

import sys

from twisted.python.filepath import FilePath


class TwistedModulesMixin(object):
    """
    A mixin for C{twisted.trial.unittest.SynchronousTestCase} providing useful
    methods for manipulating Python's module system.
    """

    def replaceSysPath(self, sysPath):
        """
        Replace sys.path, for the duration of the test, with the given value.
        """
        originalSysPath = sys.path[:]
        def cleanUpSysPath():
            sys.path[:] = originalSysPath
        self.addCleanup(cleanUpSysPath)
        sys.path[:] = sysPath


    def replaceSysModules(self, sysModules):
        """
        Replace sys.modules, for the duration of the test, with the given value.
        """
        originalSysModules = sys.modules.copy()
        def cleanUpSysModules():
            sys.modules.clear()
            sys.modules.update(originalSysModules)
        self.addCleanup(cleanUpSysModules)
        sys.modules.clear()
        sys.modules.update(sysModules)


    def pathEntryWithOnePackage(self, pkgname="test_package"):
        """
        Generate a L{FilePath} with one package, named C{pkgname}, on it, and
        return the L{FilePath} of the path entry.
        """
        entry = FilePath(self.mktemp())
        pkg = entry.child("test_package")
        pkg.makedirs()
        pkg.child("__init__.py").setContent(b"")
        return entry

Filemanager

Name Type Size Permission Actions
__pycache__ Folder 0755
__init__.py File 42 B 0644
_deprecatetests.py.3only File 1.77 KB 0644
deprecatedattributes.py File 571 B 0644
modules_helpers.py File 1.57 KB 0644
pullpipe.py File 1.19 KB 0644
test_appdirs.py File 1.06 KB 0644
test_components.py File 25.37 KB 0644
test_constants.py File 37.22 KB 0644
test_deprecate.py File 38.02 KB 0644
test_dist3.py File 1.81 KB 0644
test_fakepwd.py File 13.78 KB 0644
test_htmlizer.py File 1.24 KB 0644
test_inotify.py File 3.55 KB 0644
test_release.py File 40.08 KB 0644
test_runtime.py File 7.74 KB 0644
test_sendmsg.py File 25.25 KB 0644
test_setup.py File 11.78 KB 0644
test_shellcomp.py File 21.32 KB 0644
test_syslog.py File 4.83 KB 0644
test_systemd.py File 6.25 KB 0644
test_textattributes.py File 712 B 0644
test_tzhelper.py File 3.89 KB 0644
test_url.py File 29.23 KB 0644
test_urlpath.py File 10.09 KB 0644
test_util.py File 35.55 KB 0644
test_versions.py File 5.27 KB 0644
test_zippath.py File 3.39 KB 0644
test_zipstream.py File 11.88 KB 0644