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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Tests for L{twisted.scripts.mktap}.
"""
import sys
try:
import pwd, grp
except ImportError:
pwd = None
from twisted.trial.unittest import TestCase
from twisted.scripts.mktap import run, getid, loadPlugins
from twisted.application.service import IProcess, loadApplication
from twisted.test.test_twistd import patchUserDatabase
from twisted.plugins.twisted_ftp import TwistedFTP
class RunTests(TestCase):
"""
Tests for L{twisted.scripts.mktap.run}.
"""
def setUp(self):
"""
Save the original value of L{sys.argv} so that tests can change it
as necessary.
"""
self.argv = sys.argv[:]
def tearDown(self):
"""
Restore the original value of L{sys.argv}.
"""
sys.argv[:] = self.argv
def _saveConfiguredIDTest(self, argv, uid, gid):
"""
Test that when L{run} is invoked and L{sys.argv} has the given
value, the resulting application has the specified UID and GID.
@type argv: C{list} of C{str}
@param argv: The value to which to set L{sys.argv} before calling L{run}.
@type uid: C{int}
@param uid: The expected value for the resulting application's
L{IProcess.uid}.
@type gid: C{int}
@param gid: The expected value for the resulting application's
L{IProcess.gid}.
"""
sys.argv = argv
run()
app = loadApplication("ftp.tap", "pickle", None)
process = IProcess(app)
self.assertEqual(process.uid, uid)
self.assertEqual(process.gid, gid)
def test_getNumericID(self):
"""
L{run} extracts numeric UID and GID information from the command
line and persists it with the application object.
"""
uid = 1234
gid = 4321
self._saveConfiguredIDTest(
["mktap", "--uid", str(uid), "--gid", str(gid), "ftp"],
uid, gid)
def test_getNameID(self):
"""
L{run} extracts name UID and GID information from the command
line and persists it with the application object.
"""
user = "foo"
uid = 1234
group = "bar"
gid = 4321
patchUserDatabase(self.patch, user, uid, group, gid)
self._saveConfiguredIDTest(
["mktap", "--uid", user, "--gid", group, "ftp"],
uid, gid)
if pwd is None:
test_getNameID.skip = (
"Username/UID Group name/GID translation requires pwd and grp "
"modules.")
class HelperTests(TestCase):
"""
Tests for miscellaneous utility functions related to mktap.
"""
def test_getid(self):
"""
L{getid} returns a two-tuple of integers giving the numeric values of
the strings it is passed.
"""
uid = 1234
gid = 4321
self.assertEqual(getid(str(uid), str(gid)), (uid, gid))
def test_loadPlugins(self):
"""
L{loadPlugins} returns a C{dict} mapping tap names to tap plugins.
"""
plugins = loadPlugins()
self.assertTrue(plugins, "There should be at least one plugin.")
# Make sure the mapping is set up properly.
for k, v in plugins.iteritems():
self.assertEqual(k, v.tapname)
# Make sure one of the always-available builtin plugins is there.
self.assertIdentical(plugins['ftp'], TwistedFTP)
