def it_can_change_one_of_its_items_to_another(self, pkg_item_, pkg_item_2_):
# fixture ----------------------
pkg_items = {"uri": pkg_item_}
package = Package(pkg_items)
pkg_item_2_.uri = "uri"
pkg_item_2_.blob = "new blob"
# exercise ---------------------
package.substitute_item(pkg_item_2_)
# verify -----------------------
assert pkg_item_.blob == "new blob"
def it_can_change_one_of_its_items_to_another(self, pkg_item_,
pkg_item_2_):
# fixture ----------------------
pkg_items = {'uri': pkg_item_}
package = Package(pkg_items)
pkg_item_2_.uri = 'uri'
pkg_item_2_.blob = 'new blob'
# exercise ---------------------
package.substitute_item(pkg_item_2_)
# verify -----------------------
assert pkg_item_.blob == 'new blob'
