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# -*- coding: utf-8 -*-
# Copyright (c) 2010 Mark Sandstrom
# Copyright (c) 2011-2015 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 factory import errors
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_access_parent(self):
"""Test simple access to a stub' parent."""
o1 = containers.LazyStub({'rank': 1})
o2 = containers.LazyStub({'rank': 2}, (o1,))
stub = containers.LazyStub({'rank': 3}, (o2, o1))
self.assertEqual(3, stub.rank)
self.assertEqual(2, stub.factory_parent.rank)
self.assertEqual(1, stub.factory_parent.factory_parent.rank)
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(errors.CyclicDefinitionError, getattr, stub, 'one')
def test_representation(self):
class RandomObj(object):
pass
stub = containers.LazyStub({'one': 1, 'two': 2}, model_class=RandomObj)
self.assertIn('RandomObj', repr(stub))
self.assertIn('RandomObj', str(stub))
self.assertIn('one', str(stub))
class AttributeBuilderTestCase(unittest.TestCase):
def make_fake_factory(self, decls):
class Meta:
declarations = decls
parameters = {}
parameters_dependencies = {}
class FakeFactory(object):
_meta = Meta
@classmethod
def _generate_next_sequence(cls):
return 1
return FakeFactory
def test_empty(self):
"""Tests building attributes from an empty definition."""
FakeFactory = self.make_fake_factory({})
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({}, ab.build(create=False))
def test_factory_defined(self):
FakeFactory = self.make_fake_factory({'one': 1})
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({'one': 1}, ab.build(create=False))
def test_extended(self):
FakeFactory = self.make_fake_factory({'one': 1})
ab = containers.AttributeBuilder(FakeFactory, {'two': 2})
self.assertEqual({'one': 1, 'two': 2}, ab.build(create=False))
def test_overridden(self):
FakeFactory = self.make_fake_factory({'one': 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%d' % n)
FakeFactory = self.make_fake_factory({'one': seq})
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({'one': 'xx1'}, ab.build(create=False))
def test_additionnal_sequence(self):
seq = declarations.Sequence(lambda n: 'xx%d' % n)
FakeFactory = self.make_fake_factory({'one': 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%d' % n)
seq2 = declarations.Sequence(lambda n: 'yy%d' % n)
FakeFactory = self.make_fake_factory({'one': seq})
ab = containers.AttributeBuilder(FakeFactory, extra={'one': seq2})
self.assertEqual({'one': 'yy1'}, ab.build(create=False))
def test_lazy_function(self):
lf = declarations.LazyFunction(int)
FakeFactory = self.make_fake_factory({'one': 1, 'two': lf})
ab = containers.AttributeBuilder(FakeFactory)
self.assertEqual({'one': 1, 'two': 0}, ab.build(create=False))
ab = containers.AttributeBuilder(FakeFactory, {'one': 4})
self.assertEqual({'one': 4, 'two': 0}, ab.build(create=False))
ab = containers.AttributeBuilder(FakeFactory, {'one': 4, 'three': lf})
self.assertEqual({'one': 4, 'two': 0, 'three': 0}, ab.build(create=False))
def test_lazy_attribute(self):
la = declarations.LazyAttribute(lambda a: a.one * 2)
FakeFactory = self.make_fake_factory({'one': 1, 'two': la})
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_subfields(self):
class FakeInnerFactory(object):
pass
sf = declarations.SubFactory(FakeInnerFactory)
FakeFactory = self.make_fake_factory({'one': sf, 'two': 2})
ab = containers.AttributeBuilder(FakeFactory, {'one__blah': 1, 'two__bar': 2})
self.assertTrue(ab.has_subfields(sf))
self.assertEqual(['one'], list(ab._subfields.keys()))
self.assertEqual(2, ab._declarations['two__bar'])
def test_sub_factory(self):
pass
if __name__ == '__main__': # pragma: no cover
unittest.main()
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