def test_unvote_for_issue_with_no_votes():
issue_id_str = 'issue_id'
user_token_str = 'voter_token'
a_issue = retro.create_mock_issue(id=issue_id_str)
a_retro = retro.create_mock_retro(issues=[a_issue])
Service.unvote_for_issue(a_issue, user_token_str, a_retro)
assert a_issue.votes is None or 0 == len(a_issue.votes)
assert a_issue.votes is None or user_token_str not in a_issue.votes
def test_unvote_for_issue(mock_send_retro_update):
issue_id_str = 'issue_id'
user_token_str = 'voter_token'
a_issue = retro.create_mock_issue(id=issue_id_str, votes={user_token_str})
a_retro = retro.create_mock_retro(issues=[a_issue])
Service.unvote_for_issue(a_issue, user_token_str, a_retro)
assert a_issue.votes is None or 0 == len(a_issue.votes)
assert a_issue.votes is None or user_token_str not in a_issue.votes
mock_send_retro_update.assert_called_once()
def test_unvote_for_issue_twice_results_in_zero_votes(mock_send_retro_update):
issue_id_str = 'issue_id'
user_token_str = 'voter_token'
initial_votes = {user_token_str, 'another_voter_token'}
initial_votes_length = len(initial_votes)
a_issue = retro.create_mock_issue(id=issue_id_str, votes=initial_votes)
a_retro = retro.create_mock_retro(issues=[a_issue])
Service.unvote_for_issue(a_issue, user_token_str, a_retro)
Service.unvote_for_issue(a_issue, user_token_str, a_retro)
assert initial_votes_length - 1 == len(a_issue.votes)
assert user_token_str not in a_issue.votes
assert 2 == mock_send_retro_update.call_count
