from oscar.apps.product.models import ItemClass, Item
from oscar.apps.partner.models import Partner, StockRecord

def create_product(price=None, title="Dummy title", item_class="Dummy item class", 
                     partner="Dummy partner", upc="dummy_101", num_in_stock=10):
    u"""
    Helper method for creating products that are used in tests.
    """
    ic,_ = ItemClass._default_manager.get_or_create(name=item_class)
    item = Item._default_manager.create(title=title, item_class=ic, upc=upc)
    if price:
        partner,_ = Partner._default_manager.get_or_create(name=partner)
        sr = StockRecord._default_manager.create(product=item, partner=partner, 
                                                 price_excl_tax=price, num_in_stock=num_in_stock)
    return item