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# Tests for the dependency injection core
#
# Copyright (C) 2012 Red Hat, Inc.
#
# 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, either version 2 of the License, or
# (at your option) any later version.
#
# 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, see
# <http://www.gnu.org/licenses/>.
#
# Red Hat Author(s): Martin Sivak <msivak@redhat.com>
#
from .core import *
import unittest
def method_to_inject():
pass
class BareFuncEnableTestCase(unittest.TestCase):
@inject(injected_func = str.lower)
def method(self, arg):
return injected_func(arg)
class BareFuncTestCase(unittest.TestCase):
@inject(injected_func = str.lower)
def method(self, arg):
return injected_func(arg)
@inject(injected_func = method)
def method2(self, arg):
return injected_func(self, arg)
def test_bare_inject(self):
"""Tests the injection to plain methods."""
self.assertEqual("a", self.method("A"))
def test_double_inject(self):
"""Tests the injection to two plain methods."""
self.assertEqual("a", self.method2("A"))
def test_inject_global_tainting(self):
"""Tests whether the global namespace is clean
after the injection is done."""
global injected_func
injected_func = None
self.method("A")
self.assertEqual(None, injected_func)
@inject(injected_func = str.lower)
class Test(object):
"""Test fixture for class injection."""
@usesclassinject
def method(self, arg):
return injected_func(arg)
@inject(injected_func = str.lower)
class TestInit(object):
"""Test fixture for injection to __init__."""
@usesclassinject
def __init__(self, arg):
self.value = injected_func(arg)
@inject(injected_func = str.lower)
class TestCallable(object):
"""Test fixture for callable classes."""
@usesclassinject
def __call__(self, arg):
return injected_func(arg)
class TestCallableSingle(object):
"""Test fixture for callable classes with
simple method injection."""
@inject(injected_func = str.lower)
def __call__(self, arg):
return injected_func(arg)
class ClassDITestCase(unittest.TestCase):
def test_class_inject(self):
"""Test injection to instance method."""
obj = Test()
self.assertEqual("a", obj.method("A"))
def test_named_register(self):
"""Test injection to instance method."""
Test._inject_(method_to_inject)
def test_class_init_inject(self):
"""Test injection to class constructor."""
obj = TestInit("A")
self.assertEqual("a", obj.value)
def test_callable_class(self):
"""Test class injection to callable class."""
obj = TestCallable()
self.assertEqual("a", obj("A"))
def test_callable_class_single(self):
"""Test method injection to callable class."""
obj = TestCallableSingle()
self.assertEqual("a", obj("A"))
if __name__ == "__main__":
unittest.main()
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