def test_writer_factory(self):
"""
Testing the pyomo.opt writer factory with MIP writers
"""
WriterFactory.register('wtest3')(MockWriter)
factory = WriterFactory
self.assertTrue(set(['wtest3']) <= set(factory))
def test_writer_registration(self):
"""
Testing methods in the writer factory registration process
"""
WriterFactory.unregister('wtest3')
self.assertTrue(not 'wtest3' in WriterFactory)
WriterFactory.register('wtest3')(MockWriter)
self.assertTrue('wtest3' in WriterFactory)