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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.
"""Simple wrappers around Factory class definition."""
import contextlib
import logging
from . import base
from . import declarations
@contextlib.contextmanager
def debug(logger='factory', stream=None):
logger_obj = logging.getLogger(logger)
old_level = logger_obj.level
handler = logging.StreamHandler(stream)
handler.setLevel(logging.DEBUG)
logger_obj.addHandler(handler)
logger_obj.setLevel(logging.DEBUG)
yield
logger_obj.setLevel(old_level)
logger_obj.removeHandler(handler)
def make_factory(klass, **kwargs):
"""Create a new, simple factory for the given class."""
factory_name = '%sFactory' % klass.__name__
class Meta:
model = klass
kwargs['Meta'] = Meta
base_class = kwargs.pop('FACTORY_CLASS', base.Factory)
factory_class = type(base.Factory).__new__(
type(base.Factory), factory_name, (base_class,), kwargs)
factory_class.__name__ = '%sFactory' % klass.__name__
factory_class.__doc__ = 'Auto-generated factory for class %s' % klass
return factory_class
def build(klass, **kwargs):
"""Create a factory for the given class, and build an instance."""
return make_factory(klass, **kwargs).build()
def build_batch(klass, size, **kwargs):
"""Create a factory for the given class, and build a batch of instances."""
return make_factory(klass, **kwargs).build_batch(size)
def create(klass, **kwargs):
"""Create a factory for the given class, and create an instance."""
return make_factory(klass, **kwargs).create()
def create_batch(klass, size, **kwargs):
"""Create a factory for the given class, and create a batch of instances."""
return make_factory(klass, **kwargs).create_batch(size)
def stub(klass, **kwargs):
"""Create a factory for the given class, and stub an instance."""
return make_factory(klass, **kwargs).stub()
def stub_batch(klass, size, **kwargs):
"""Create a factory for the given class, and stub a batch of instances."""
return make_factory(klass, **kwargs).stub_batch(size)
def generate(klass, strategy, **kwargs):
"""Create a factory for the given class, and generate an instance."""
return make_factory(klass, **kwargs).generate(strategy)
def generate_batch(klass, strategy, size, **kwargs):
"""Create a factory for the given class, and generate instances."""
return make_factory(klass, **kwargs).generate_batch(strategy, size)
# We're reusing 'create' as a keyword.
# pylint: disable=W0621
def simple_generate(klass, create, **kwargs):
"""Create a factory for the given class, and simple_generate an instance."""
return make_factory(klass, **kwargs).simple_generate(create)
def simple_generate_batch(klass, create, size, **kwargs):
"""Create a factory for the given class, and simple_generate instances."""
return make_factory(klass, **kwargs).simple_generate_batch(create, size)
# pylint: enable=W0621
def lazy_attribute(func):
return declarations.LazyAttribute(func)
def iterator(func):
"""Turn a generator function into an iterator attribute."""
return declarations.Iterator(func())
def sequence(func):
return declarations.Sequence(func)
def lazy_attribute_sequence(func):
return declarations.LazyAttributeSequence(func)
def container_attribute(func):
return declarations.ContainerAttribute(func, strict=False)
def post_generation(fun):
return declarations.PostGeneration(fun)
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