def test_group_stances(self):
"""Verifies stances are grouped by stance and side."""
stance1 = Stance()
stance1.issue = "Apples"
stance1.side = outcomes.PRO
stance2 = Stance()
stance2.issue = "Oranges"
stance2.side = outcomes.PRO
stance3 = Stance()
stance3.issue = "Banana"
stance3.side = outcomes.CON
stance4 = Stance()
stance4.issue = "Apples"
stance4.side = outcomes.CON
stance5 = Stance()
stance5.issue = "Banana"
stance5.side = outcomes.CON
stance6 = Stance()
stance6.issue = "Oranges"
stance6.side = outcomes.CON
input_list = [stance1, stance2, stance3, stance4, stance5, stance6]
correct_list = [stance4, stance1, stance3, stance5, stance6, stance2]
stance_analyze.group_stances(input_list)
self.assertEquals(input_list, correct_list)
def _apply_decision_strategies(member, bill, decision):
"""Applies strategies to compute a result for the decision. Tries all
active strategies in the database and stops at the first one that succeeds.
Arguments:
member: the Member voting on the bill
bill: the Bill to be voted upon.
decision: the object that represents the decision
Return:
True if a decision was made, false otherwise. Upon success, the
decision object has been updated appropriately.
"""
logger.LOGGER.info("Applying decision strategies...")
strategy_entries = _retrieve_strategy_list()
for strategy_entry in strategy_entries:
logger.LOGGER.info("Trying decision strategy: %s" % strategy_entry.name)
if not strategy_hash.STRATEGY_HASH.has_key(strategy_entry.name):
logger.LOGGER.error("No such strategy exists.")
continue
strategy_class = strategy_hash.STRATEGY_HASH[strategy_entry.name]
strategy = strategy_class(decision, member, bill)
result = strategy.run()
if result:
strategy.explain()
stance_analyze.group_stances(decision.reason)
stance_analyze.group_stances(decision.downside)
return True
logger.LOGGER.info("Failed to produce a decision.")
return False
