def test_should_withdraw_the_only_bid() -> None:
auction = AuctionFactory(bids=[Bid(id=1, bidder_id=1, amount=get_dollars("50"))])
auction.withdraw_bids([1])
assert auction.winners == []
assert auction.current_price == auction.starting_price
def test_should_emit_event_with_none_winner_if_no_winners(yesterday: datetime) -> None:
auction = AuctionFactory(ends_at=yesterday)
auction.end_auction()
expected_event = AuctionEnded(auction.id, None, auction.current_price, auction.title)
assert auction.domain_events == [expected_event]
def test_should_emit_auction_ended(yesterday: datetime) -> None:
auction = AuctionFactory(bids=[Bid(id=1, bidder_id=1, amount=get_dollars("15.00"))], ends_at=yesterday)
auction.end_auction()
expected_event = AuctionEnded(auction.id, auction.winners[0], auction.current_price, auction.title)
assert auction.domain_events == [expected_event]
def test_should_emit_winning_event_if_the_first_offer() -> None:
auction = AuctionFactory()
winning_amount = auction.current_price + get_dollars("1.00")
auction.place_bid(bidder_id=1, amount=winning_amount)
assert auction.domain_events == [WinningBidPlaced(auction.id, 1, winning_amount, auction.title)]
def test_should_not_be_winning_if_bid_lower_than_current_price() -> None:
auction = AuctionFactory(bids=[Bid(id=1, bidder_id=1, amount=get_dollars("10.00"))])
lower_bid_bidder_id = 2
auction.place_bid(bidder_id=lower_bid_bidder_id, amount=get_dollars("5.00"))
assert lower_bid_bidder_id not in auction.winners
def test_should_emit_winning_if_overbids() -> None:
auction = AuctionFactory(bids=[Bid(id=1, bidder_id=1, amount=get_dollars("15.00"))])
winning_amount = auction.current_price + get_dollars("1.00")
auction.place_bid(bidder_id=2, amount=winning_amount)
expected_winning_event = WinningBidPlaced(auction.id, 2, winning_amount, auction.title)
expected_overbid_event = BidderHasBeenOverbid(auction.id, 1, winning_amount, auction.title)
assert auction.domain_events == [expected_winning_event, expected_overbid_event]
def test_should_emit_event_upon_overbid() -> None:
bid_that_will_lose = Bid(id=1, bidder_id=1, amount=get_dollars("15.00"))
auction = AuctionFactory(bids=[bid_that_will_lose])
new_bid_amount = get_dollars("20.00")
auction.place_bid(bidder_id=2, amount=new_bid_amount)
expected_event = BidderHasBeenOverbid(auction.id, bid_that_will_lose.bidder_id, new_bid_amount, auction.title)
assert expected_event in auction.domain_events
def test_should_return_highest_bids_user_id_for_winners_list() -> None:
auction = AuctionFactory(
bids=[
Bid(id=1, bidder_id=1, amount=get_dollars("101")),
Bid(id=2, bidder_id=2, amount=get_dollars("15")),
Bid(id=3, bidder_id=3, amount=get_dollars("100")),
]
)
assert auction.winners == [1]
def test_should_use_starting_price_as_current_price_for_empty_bids_list() -> None:
auction = AuctionFactory()
assert auction.current_price == auction.starting_price
def test_should_add_withdrawn_bids_ids_to_separate_list() -> None:
auction = AuctionFactory(bids=[Bid(id=1, bidder_id=1, amount=get_dollars("50"))])
auction.withdraw_bids([1])
assert auction.withdrawn_bids_ids == [1]
def test_should_raise_if_auction_has_not_been_ended() -> None:
auction = AuctionFactory()
with pytest.raises(AuctionHasNotEnded):
auction.end_auction()
def test_should_not_be_winning_auction_if_bids_below_starting_price() -> None:
auction = AuctionFactory()
auction.place_bid(bidder_id=1, amount=get_dollars("5"))
assert auction.winners == []
def test_should_win_auction_if_is_the_only_bidder_above_starting_price() -> None:
auction = AuctionFactory()
auction.place_bid(bidder_id=1, amount=get_dollars("11"))
assert auction.winners == [1]
def test_should_return_no_winners_for_empty_bids_list() -> None:
auction = AuctionFactory()
assert auction.winners == []
def test_EndedAuction_PlacingBid_RaisesException(yesterday: datetime) -> None:
auction = AuctionFactory(ends_at=yesterday)
auction.end_auction()
with pytest.raises(BidOnEndedAuction):
auction.place_bid(bidder_id=1, amount=get_dollars("19.99"))
def test_should_not_allow_placing_bids_for_ended_auction(yesterday: datetime) -> None:
auction = AuctionFactory(ends_at=yesterday)
with pytest.raises(BidOnEndedAuction):
auction.place_bid(bidder_id=1, amount=auction.current_price + get_dollars("1.00"))
def test_EndedAuction_Ending_RaisesException(yesterday: datetime) -> None:
auction = AuctionFactory(ends_at=yesterday)
auction.end_auction()
with pytest.raises(AuctionAlreadyEnded):
auction.end_auction()
def test_should_return_highest_bid_for_current_price() -> None:
auction = AuctionFactory(
bids=[Bid(id=1, bidder_id=1, amount=get_dollars("20")), Bid(id=2, bidder_id=2, amount=get_dollars("15"))]
)
assert auction.current_price == get_dollars("20")
def auction() -> Auction:
return AuctionFactory()