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# -*- coding: utf-8 -*-
# Copyright (c) 2010 Mark Sandstrom
# Copyright (c) 2011 Raphaël Barrois
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from factory import base
from factory import containers
from factory import declarations
from .compat import unittest
class LazyStubTestCase(unittest.TestCase):
def test_basic(self):
stub = containers.LazyStub({'one': 1, 'two': 2})
self.assertEqual({'one': 1, 'two': 2}, stub.__fill__())
def test_setting_values(self):
stub = containers.LazyStub({'one': 1, 'two': 2})
self.assertRaises(AttributeError, setattr, stub, 'one', 1)
def test_reading_value(self):
stub = containers.LazyStub({'one': 1, 'two': 2})
self.assertEqual(1, stub.one)
self.assertRaises(AttributeError, getattr, stub, 'three')
def test_accessing_container(self):
class LazyAttr(containers.LazyValue):
def __init__(self, obj_attr, container_attr):
self.obj_attr = obj_attr
self.container_attr = container_attr
def evaluate(self, obj, containers=()):
if containers:
add = getattr(containers[0], self.container_attr)
else:
add = 0
return getattr(obj, self.obj_attr) + add
class DummyContainer(object):
three = 3
stub = containers.LazyStub({'one': LazyAttr('two', 'three'), 'two': 2, 'three': 42},
containers=(DummyContainer(),))
self.assertEqual(5, stub.one)
stub = containers.LazyStub({'one': LazyAttr('two', 'three'), 'two': 2, 'three': 42},
containers=())
self.assertEqual(2, stub.one)
def test_cyclic_definition(self):
class LazyAttr(containers.LazyValue):
def __init__(self, attrname):
self.attrname = attrname
def evaluate(self, obj, container=None):
return 1 + getattr(obj, self.attrname)
stub = containers.LazyStub({'one': LazyAttr('two'), 'two': LazyAttr('one')})
self.assertRaises(containers.CyclicDefinitionError, getattr, stub, 'one')
def test_representation(self):
class RandomObj(object):
pass
stub = containers.LazyStub({'one': 1, 'two': 2}, target_class=RandomObj)
self.assertIn('RandomObj', repr(stub))
self.assertIn('RandomObj', str(stub))
self.assertIn('one', str(stub))
class OrderedDeclarationMock(declarations.OrderedDeclaration):
pass
class DeclarationDictTestCase(unittest.TestCase):
def test_basics(self):
one = OrderedDeclarationMock()
two = 2
three = OrderedDeclarationMock()
d = containers.DeclarationDict(dict(one=one, two=two, three=three))
self.assertTrue('one' in d)
self.assertTrue('two' in d)
self.assertTrue('three' in d)
self.assertEqual(one, d['one'])
self.assertEqual(two, d['two'])
self.assertEqual(three, d['three'])
self.assertEqual(one, d.pop('one'))
self.assertFalse('one' in d)
d['one'] = one
self.assertTrue('one' in d)
self.assertEqual(one, d['one'])
self.assertEqual(set(['one', 'two', 'three']),
set(d))
def test_insert(self):
one = OrderedDeclarationMock()
two = 2
three = OrderedDeclarationMock()
four = OrderedDeclarationMock()
d = containers.DeclarationDict(dict(one=one, two=two, four=four))
self.assertEqual(set(['two', 'one', 'four']), set(d))
d['three'] = three
self.assertEqual(set(['two', 'one', 'three', 'four']), set(d))
def test_replace(self):
one = OrderedDeclarationMock()
two = 2
three = OrderedDeclarationMock()
four = OrderedDeclarationMock()
d = containers.DeclarationDict(dict(one=one, two=two, three=three))
self.assertEqual(set(['two', 'one', 'three']), set(d))
d['three'] = four
self.assertEqual(set(['two', 'one', 'three']), set(d))
self.assertEqual(set([two, one, four]), set(d.values()))
def test_copy(self):
one = OrderedDeclarationMock()
two = 2
three = OrderedDeclarationMock()
four = OrderedDeclarationMock()
d = containers.DeclarationDict(dict(one=one, two=two, three=three))
d2 = d.copy({'five': 5})
self.assertEqual(5, d2['five'])
self.assertFalse('five' in d)
d.pop('one')
self.assertEqual(one, d2['one'])
d2['two'] = four
self.assertEqual(four, d2['two'])
self.assertEqual(two, d['two'])
def test_update_with_public(self):
d = containers.DeclarationDict()
d.update_with_public({
'one': 1,
'_two': 2,
'three': 3,
'classmethod': classmethod(lambda c: 1),
'staticmethod': staticmethod(lambda: 1),
})
self.assertEqual(set(['one', 'three']), set(d))
self.assertEqual(set([1, 3]), set(d.values()))
class AttributeBuilderTestCase(unittest.TestCase):
def test_empty(self):
"""Tests building attributes from an empty definition."""
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
return extra
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({}, ab.build(create=False))
def test_factory_defined(self):
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = {'one': 1}
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({'one': 1}, ab.build(create=False))
def test_extended(self):
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = {'one': 1}
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory, {'two': 2})
self.assertEqual({'one': 1, 'two': 2}, ab.build(create=False))
def test_overridden(self):
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = {'one': 1}
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory, {'one': 2})
self.assertEqual({'one': 2}, ab.build(create=False))
def test_factory_defined_sequence(self):
seq = declarations.Sequence(lambda n: 'xx' + n)
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = {'one': seq}
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({'one': 'xx1'}, ab.build(create=False))
def test_additionnal_sequence(self):
seq = declarations.Sequence(lambda n: 'xx' + n)
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = {'one': 1}
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory, extra={'two': seq})
self.assertEqual({'one': 1, 'two': 'xx1'}, ab.build(create=False))
def test_replaced_sequence(self):
seq = declarations.Sequence(lambda n: 'xx' + n)
seq2 = declarations.Sequence(lambda n: 'yy' + n)
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = {'one': seq}
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory, extra={'one': seq2})
self.assertEqual({'one': 'yy1'}, ab.build(create=False))
def test_lazy_attribute(self):
la = declarations.LazyAttribute(lambda a: a.one * 2)
class FakeFactory(object):
@classmethod
def declarations(cls, extra):
d = containers.DeclarationDict({'one': 1, 'two': la})
d.update(extra)
return d
@classmethod
def _generate_next_sequence(cls):
return 1
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({'one': 1, 'two': 2}, ab.build(create=False))
ab = containers.AttributeBuilder(FakeFactory, {'one': 4})
self.assertEqual({'one': 4, 'two': 8}, ab.build(create=False))
ab = containers.AttributeBuilder(FakeFactory, {'one': 4, 'three': la})
self.assertEqual({'one': 4, 'two': 8, 'three': 8}, ab.build(create=False))
def test_sub_factory(self):
pass
if __name__ == '__main__':
unittest.main()
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