Source code for factory.helpers

# Copyright: See the LICENSE file.


"""Simple wrappers around Factory class definition."""

import contextlib
import logging

from . import base, declarations


[docs]@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) try: yield finally: logger_obj.setLevel(old_level) logger_obj.removeHandler(handler)
[docs]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
[docs]def build(klass, **kwargs): """Create a factory for the given class, and build an instance.""" return make_factory(klass, **kwargs).build()
[docs]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)
[docs]def create(klass, **kwargs): """Create a factory for the given class, and create an instance.""" return make_factory(klass, **kwargs).create()
[docs]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)
[docs]def stub(klass, **kwargs): """Create a factory for the given class, and stub an instance.""" return make_factory(klass, **kwargs).stub()
[docs]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)
[docs]def generate(klass, strategy, **kwargs): """Create a factory for the given class, and generate an instance.""" return make_factory(klass, **kwargs).generate(strategy)
[docs]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)
[docs]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)
[docs]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)
[docs]def lazy_attribute(func): return declarations.LazyAttribute(func)
[docs]def iterator(func): """Turn a generator function into an iterator attribute.""" return declarations.Iterator(func())
[docs]def sequence(func): return declarations.Sequence(func)
[docs]def lazy_attribute_sequence(func): return declarations.LazyAttributeSequence(func)
def container_attribute(func): return declarations.ContainerAttribute(func, strict=False)
[docs]def post_generation(fun): return declarations.PostGeneration(fun)