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# Authors:
# Jason Gerard DeRose <jderose@redhat.com>
#
# Copyright (C) 2008 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 only
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
Unit tests for `ipalib.plugable` module.
"""
from ipalib import plugable, exceptions
def test_Registrar():
class Base1(object):
pass
class Base2(object):
pass
class Base3(object):
pass
class plugin1(Base1):
pass
class plugin2(Base2):
pass
class plugin3(Base3):
pass
# Test creation of Registrar:
r = plugable.Registrar(Base1, Base2)
assert sorted(r) == ['Base1', 'Base2']
# Check that TypeError is raised trying to register something that isn't
# a class:
raised = False
try:
r(plugin1())
except TypeError:
raised = True
assert raised
# Check that SubclassError is raised trying to register a class that is
# not a subclass of an allowed base:
raised = False
try:
r(plugin3)
except exceptions.SubclassError:
raised = True
assert raised
# Check that registration works
r(plugin1)
sub_d = r['Base1']
assert len(sub_d) == 1
assert sub_d['plugin1'] is plugin1
# Check that a copy is returned
assert sub_d is not r['Base1']
assert sub_d == r['Base1']
# Check that DuplicateError is raised trying to register exact class
# again:
raised = False
try:
r(plugin1)
except exceptions.DuplicateError:
raised = True
assert raised
# Check that OverrideError is raised trying to register class with same
# name and same base:
orig1 = plugin1
class base1_extended(Base1):
pass
class plugin1(base1_extended):
pass
raised = False
try:
r(plugin1)
except exceptions.OverrideError:
raised = True
assert raised
# Check that overriding works
r(plugin1, override=True)
sub_d = r['Base1']
assert len(sub_d) == 1
assert sub_d['plugin1'] is plugin1
assert sub_d['plugin1'] is not orig1
# Check that MissingOverrideError is raised trying to override a name
# not yet registerd:
raised = False
try:
r(plugin2, override=True)
except exceptions.MissingOverrideError:
raised = True
assert raised
# Check that additional plugin can be registered:
r(plugin2)
sub_d = r['Base2']
assert len(sub_d) == 1
assert sub_d['plugin2'] is plugin2
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