def test_exclude_from_tilde_expansion(self):
basedir = "cli/Backup/exclude_from_tilde_expansion"
fileutil.make_dirs(basedir)
nodeurl_path = os.path.join(basedir, 'node.url')
fileutil.write(nodeurl_path, 'http://example.net:2357/')
# ensure that tilde expansion is performed on exclude-from argument
exclude_file = u'~/.tahoe/excludes.dummy'
ns = Namespace()
ns.called = False
original_open = open
def call_file(name, *args, **kwargs):
if name.endswith("excludes.dummy"):
ns.called = True
self.failUnlessEqual(name, abspath_expanduser_unicode(exclude_file))
return StringIO()
else:
return original_open(name, *args, **kwargs)
if PY2:
from allmydata.scripts import cli as module_to_patch
else:
import builtins as module_to_patch
patcher = MonkeyPatcher((module_to_patch, 'open', call_file))
patcher.runWithPatches(parse_options, basedir, "backup", ['--exclude-from-utf-8', unicode_to_argv(exclude_file), 'from', 'to'])
self.failUnless(ns.called)
def test_exclude_from_tilde_expansion(self):
basedir = "cli/Backup/exclude_from_tilde_expansion"
fileutil.make_dirs(basedir)
nodeurl_path = os.path.join(basedir, 'node.url')
fileutil.write(nodeurl_path, 'http://example.net:2357/')
# ensure that tilde expansion is performed on exclude-from argument
exclude_file = u'~/.tahoe/excludes.dummy'
ns = Namespace()
ns.called = False
def call_file(name, *args):
ns.called = True
self.failUnlessEqual(name, abspath_expanduser_unicode(exclude_file))
return StringIO()
patcher = MonkeyPatcher((__builtin__, 'file', call_file))
patcher.runWithPatches(parse_options, basedir, "backup", ['--exclude-from', unicode_to_argv(exclude_file), 'from', 'to'])
self.failUnless(ns.called)
def test_exclude_from_tilde_expansion(self):
basedir = "cli/Backup/exclude_from_tilde_expansion"
fileutil.make_dirs(basedir)
nodeurl_path = os.path.join(basedir, 'node.url')
fileutil.write(nodeurl_path, 'http://example.net:2357/')
# ensure that tilde expansion is performed on exclude-from argument
exclude_file = u'~/.tahoe/excludes.dummy'
ns = Namespace()
ns.called = False
def call_file(name, *args):
ns.called = True
self.failUnlessEqual(name, abspath_expanduser_unicode(exclude_file))
return StringIO()
patcher = MonkeyPatcher((__builtin__, 'file', call_file))
patcher.runWithPatches(parse_options, basedir, "backup", ['--exclude-from', unicode_to_argv(exclude_file), 'from', 'to'])
self.failUnless(ns.called)
def test_report_import_error(self):
marker = "wheeeyo"
real_import_func = __import__
def raiseIE_from_this_particular_func(name, *args):
if name == "foolscap":
raise ImportError(marker + " foolscap cant be imported")
else:
return real_import_func(name, *args)
# Let's run as little code as possible with __import__ patched.
patcher = MonkeyPatcher((__builtin__, '__import__', raiseIE_from_this_particular_func))
vers_and_locs, errors = patcher.runWithPatches(allmydata.get_package_versions_and_locations)
foolscap_stuffs = [stuff for (pkg, stuff) in vers_and_locs if pkg == 'foolscap']
self.failUnlessEqual(len(foolscap_stuffs), 1)
comment = str(foolscap_stuffs[0][2])
self.failUnlessIn(marker, comment)
self.failUnlessIn('raiseIE_from_this_particular_func', comment)
self.failUnless([e for e in errors if "dependency \'foolscap\' could not be imported" in e])
def test_report_import_error(self):
marker = "wheeeyo"
real_import_func = __import__
def raiseIE_from_this_particular_func(name, *args):
if name == "foolscap":
raise ImportError(marker + " foolscap cant be imported")
else:
return real_import_func(name, *args)
# Let's run as little code as possible with __import__ patched.
patcher = MonkeyPatcher((__builtin__, "__import__", raiseIE_from_this_particular_func))
vers_and_locs, errors = patcher.runWithPatches(allmydata.get_package_versions_and_locations)
foolscap_stuffs = [stuff for (pkg, stuff) in vers_and_locs if pkg == "foolscap"]
self.failUnlessEqual(len(foolscap_stuffs), 1)
comment = str(foolscap_stuffs[0][2])
self.failUnlessIn(marker, comment)
self.failUnlessIn("raiseIE_from_this_particular_func", comment)
self.failUnless([e for e in errors if "dependency 'foolscap' could not be imported" in e])
class MonkeyPatcherTest(unittest.TestCase):
"""
Tests for L{MonkeyPatcher} monkey-patching class.
"""
def setUp(self):
self.testObject = TestObj()
self.originalObject = TestObj()
self.monkeyPatcher = MonkeyPatcher()
def test_empty(self):
"""
A monkey patcher without patches shouldn't change a thing.
"""
self.monkeyPatcher.patch()
# We can't assert that all state is unchanged, but at least we can
# check our test object.
self.assertEqual(self.originalObject.foo, self.testObject.foo)
self.assertEqual(self.originalObject.bar, self.testObject.bar)
self.assertEqual(self.originalObject.baz, self.testObject.baz)
def test_constructWithPatches(self):
"""
Constructing a L{MonkeyPatcher} with patches should add all of the
given patches to the patch list.
"""
patcher = MonkeyPatcher((self.testObject, "foo", "haha"), (self.testObject, "bar", "hehe"))
patcher.patch()
self.assertEqual("haha", self.testObject.foo)
self.assertEqual("hehe", self.testObject.bar)
self.assertEqual(self.originalObject.baz, self.testObject.baz)
def test_patchExisting(self):
"""
Patching an attribute that exists sets it to the value defined in the
patch.
"""
self.monkeyPatcher.addPatch(self.testObject, "foo", "haha")
self.monkeyPatcher.patch()
self.assertEqual(self.testObject.foo, "haha")
def test_patchNonExisting(self):
"""
Patching a non-existing attribute fails with an C{AttributeError}.
"""
self.monkeyPatcher.addPatch(self.testObject, "nowhere", "blow up please")
self.assertRaises(AttributeError, self.monkeyPatcher.patch)
def test_patchAlreadyPatched(self):
"""
Adding a patch for an object and attribute that already have a patch
overrides the existing patch.
"""
self.monkeyPatcher.addPatch(self.testObject, "foo", "blah")
self.monkeyPatcher.addPatch(self.testObject, "foo", "BLAH")
self.monkeyPatcher.patch()
self.assertEqual(self.testObject.foo, "BLAH")
self.monkeyPatcher.restore()
self.assertEqual(self.testObject.foo, self.originalObject.foo)
def test_restoreTwiceIsANoOp(self):
"""
Restoring an already-restored monkey patch is a no-op.
"""
self.monkeyPatcher.addPatch(self.testObject, "foo", "blah")
self.monkeyPatcher.patch()
self.monkeyPatcher.restore()
self.assertEqual(self.testObject.foo, self.originalObject.foo)
self.monkeyPatcher.restore()
self.assertEqual(self.testObject.foo, self.originalObject.foo)
def test_runWithPatchesDecoration(self):
"""
runWithPatches should run the given callable, passing in all arguments
and keyword arguments, and return the return value of the callable.
"""
log = []
def f(a, b, c=None):
log.append((a, b, c))
return "foo"
result = self.monkeyPatcher.runWithPatches(f, 1, 2, c=10)
self.assertEqual("foo", result)
self.assertEqual([(1, 2, 10)], log)
def test_repeatedRunWithPatches(self):
"""
We should be able to call the same function with runWithPatches more
than once. All patches should apply for each call.
"""
def f():
return (self.testObject.foo, self.testObject.bar, self.testObject.baz)
self.monkeyPatcher.addPatch(self.testObject, "foo", "haha")
result = self.monkeyPatcher.runWithPatches(f)
self.assertEqual(("haha", self.originalObject.bar, self.originalObject.baz), result)
result = self.monkeyPatcher.runWithPatches(f)
self.assertEqual(("haha", self.originalObject.bar, self.originalObject.baz), result)
def test_runWithPatchesRestores(self):
"""
C{runWithPatches} should restore the original values after the function
has executed.
"""
self.monkeyPatcher.addPatch(self.testObject, "foo", "haha")
self.assertEqual(self.originalObject.foo, self.testObject.foo)
self.monkeyPatcher.runWithPatches(lambda: None)
self.assertEqual(self.originalObject.foo, self.testObject.foo)
def test_runWithPatchesRestoresOnException(self):
"""
Test runWithPatches restores the original values even when the function
raises an exception.
"""
def _():
self.assertEqual(self.testObject.foo, "haha")
self.assertEqual(self.testObject.bar, "blahblah")
raise RuntimeError, "Something went wrong!"
self.monkeyPatcher.addPatch(self.testObject, "foo", "haha")
self.monkeyPatcher.addPatch(self.testObject, "bar", "blahblah")
self.assertRaises(RuntimeError, self.monkeyPatcher.runWithPatches, _)
self.assertEqual(self.testObject.foo, self.originalObject.foo)
self.assertEqual(self.testObject.bar, self.originalObject.bar)
class MonkeyPatcherTest(unittest.TestCase):
"""
Tests for L{MonkeyPatcher} monkey-patching class.
"""
def setUp(self):
self.testObject = TestObj()
self.originalObject = TestObj()
self.monkeyPatcher = MonkeyPatcher()
def test_empty(self):
"""
A monkey patcher without patches shouldn't change a thing.
"""
self.monkeyPatcher.patch()
# We can't assert that all state is unchanged, but at least we can
# check our test object.
self.assertEqual(self.originalObject.foo, self.testObject.foo)
self.assertEqual(self.originalObject.bar, self.testObject.bar)
self.assertEqual(self.originalObject.baz, self.testObject.baz)
def test_constructWithPatches(self):
"""
Constructing a L{MonkeyPatcher} with patches should add all of the
given patches to the patch list.
"""
patcher = MonkeyPatcher((self.testObject, 'foo', 'haha'),
(self.testObject, 'bar', 'hehe'))
patcher.patch()
self.assertEqual('haha', self.testObject.foo)
self.assertEqual('hehe', self.testObject.bar)
self.assertEqual(self.originalObject.baz, self.testObject.baz)
def test_patchExisting(self):
"""
Patching an attribute that exists sets it to the value defined in the
patch.
"""
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
self.monkeyPatcher.patch()
self.assertEqual(self.testObject.foo, 'haha')
def test_patchNonExisting(self):
"""
Patching a non-existing attribute fails with an C{AttributeError}.
"""
self.monkeyPatcher.addPatch(self.testObject, 'nowhere',
'blow up please')
self.assertRaises(AttributeError, self.monkeyPatcher.patch)
def test_patchAlreadyPatched(self):
"""
Adding a patch for an object and attribute that already have a patch
overrides the existing patch.
"""
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'blah')
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'BLAH')
self.monkeyPatcher.patch()
self.assertEqual(self.testObject.foo, 'BLAH')
self.monkeyPatcher.restore()
self.assertEqual(self.testObject.foo, self.originalObject.foo)
def test_restoreTwiceIsANoOp(self):
"""
Restoring an already-restored monkey patch is a no-op.
"""
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'blah')
self.monkeyPatcher.patch()
self.monkeyPatcher.restore()
self.assertEqual(self.testObject.foo, self.originalObject.foo)
self.monkeyPatcher.restore()
self.assertEqual(self.testObject.foo, self.originalObject.foo)
def test_runWithPatchesDecoration(self):
"""
runWithPatches should run the given callable, passing in all arguments
and keyword arguments, and return the return value of the callable.
"""
log = []
def f(a, b, c=None):
log.append((a, b, c))
return 'foo'
result = self.monkeyPatcher.runWithPatches(f, 1, 2, c=10)
self.assertEqual('foo', result)
self.assertEqual([(1, 2, 10)], log)
def test_repeatedRunWithPatches(self):
"""
We should be able to call the same function with runWithPatches more
than once. All patches should apply for each call.
"""
def f():
return (self.testObject.foo, self.testObject.bar,
self.testObject.baz)
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
result = self.monkeyPatcher.runWithPatches(f)
self.assertEqual(
('haha', self.originalObject.bar, self.originalObject.baz), result)
result = self.monkeyPatcher.runWithPatches(f)
self.assertEqual(
('haha', self.originalObject.bar, self.originalObject.baz),
result)
def test_runWithPatchesRestores(self):
"""
C{runWithPatches} should restore the original values after the function
has executed.
"""
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
self.assertEqual(self.originalObject.foo, self.testObject.foo)
self.monkeyPatcher.runWithPatches(lambda: None)
self.assertEqual(self.originalObject.foo, self.testObject.foo)
def test_runWithPatchesRestoresOnException(self):
"""
Test runWithPatches restores the original values even when the function
raises an exception.
"""
def _():
self.assertEqual(self.testObject.foo, 'haha')
self.assertEqual(self.testObject.bar, 'blahblah')
raise RuntimeError("Something went wrong!")
self.monkeyPatcher.addPatch(self.testObject, 'foo', 'haha')
self.monkeyPatcher.addPatch(self.testObject, 'bar', 'blahblah')
self.assertRaises(RuntimeError, self.monkeyPatcher.runWithPatches, _)
self.assertEqual(self.testObject.foo, self.originalObject.foo)
self.assertEqual(self.testObject.bar, self.originalObject.bar)
def get_inotify_module():
# Until Twisted #9579 is fixed, the Docker check just screws things up.
# Disable it.
monkey = MonkeyPatcher()
monkey.addPatch(runtime.platform, "isDocker", lambda: False)
return monkey.runWithPatches(_get_inotify_module)
