def bid(self, id: int, price: Wad) -> Tuple[Optional[Wad], Optional[Transact], Optional[Rad]]:
assert isinstance(id, int)
assert isinstance(price, Wad)
bid = self.flipper.bids(id)
# dent phase
if bid.bid == bid.tab:
our_lot = Wad(bid.bid / Rad(price))
if our_lot < self.min_lot:
return None, None, None
if (our_lot * self.beg <= bid.lot) and (our_lot < bid.lot):
return price, self.flipper.dent(id, our_lot, bid.bid), bid.bid
else:
return None, None, None
# tend phase
else:
if bid.lot < self.min_lot:
return None, None, None
our_bid = Rad.min(Rad(bid.lot) * price, bid.tab)
our_price = price if our_bid < bid.tab else bid.bid / Rad(bid.lot)
if (our_bid >= bid.bid * self.beg or our_bid == bid.tab) and our_bid > bid.bid:
return our_price, self.flipper.tend(id, bid.lot, our_bid), our_bid
else:
return None, None, None
def bid(self, id: int, price: Wad) -> Tuple[Optional[Wad], Optional[Transact], Optional[Rad]]:
assert isinstance(id, int)
assert isinstance(price, Wad)
bid = self.flipper.bids(id)
# dent phase
if bid.bid == bid.tab:
our_lot = Wad(bid.bid / Rad(price))
if our_lot < self.min_lot:
self.logger.debug(f"dent lot {our_lot} less than minimum {self.min_lot}")
return None, None, None
if (our_lot * self.beg <= bid.lot) and (our_lot < bid.lot):
return price, self.flipper.dent(id, our_lot, bid.bid), bid.bid
else:
self.logger.debug(f"dent lot {our_lot} would not exceed the bid increment")
return None, None, None
# tend phase
else:
if bid.lot < self.min_lot:
self.logger.debug(f"tend lot {bid.lot} less than minimum {self.min_lot}")
return None, None, None
our_bid = Rad.min(Rad(bid.lot) * price, bid.tab)
our_price = price if our_bid < bid.tab else bid.bid / Rad(bid.lot)
if (our_bid >= bid.bid * self.beg or our_bid == bid.tab) and our_bid > bid.bid:
return our_price, self.flipper.tend(id, bid.lot, our_bid), our_bid
else:
self.logger.debug(f"tend bid {our_bid} would not exceed the bid increment")
return None, None, None
def test_min_value_should_reject_comparison_with_ints(self):
with pytest.raises(ArithmeticError):
Rad.min(Rad(10), 20)
with pytest.raises(ArithmeticError):
Rad.min(20, Rad(10))
def test_min_value_should_reject_comparison_with_rays(self):
with pytest.raises(ArithmeticError):
Rad.min(Rad(10), Ray(20))
with pytest.raises(ArithmeticError):
Rad.min(Ray(25), Rad(15))
def test_min_value(self):
assert Rad.min(Rad(10), Rad(20)) == Rad(10)
assert Rad.min(Rad(25), Rad(15)) == Rad(15)
assert Rad.min(Rad(25), Rad(15), Rad(5)) == Rad(5)
