def test_should_take_if_model_price_updated(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
(needs_redo, price, initial_lot, initial_tab) = self.clipper.status(kick)
# when initial model price is too low
bad_price = price - Ray.from_number(30)
self.simulate_model_bid(model, bad_price)
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then ensure no bid was submitted
(needs_redo, price, lot, tab) = self.clipper.status(kick)
assert lot == initial_lot
assert tab == initial_tab
# when model price becomes appropriate
good_price = price + Ray.from_number(30)
self.simulate_model_bid(model, good_price)
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then ensure our bid was submitted
our_take: Clipper.TakeLog = self.last_log()
assert our_take.id == kick
assert our_take.price <= good_price
# and that the auction finished
(needs_redo, price, lot, tab) = self.clipper.status(kick)
assert not needs_redo
assert lot == Wad(0) or tab == Rad(0)
def test_should_overbid_itself_if_model_has_updated_the_price(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
lot = self.flapper.bids(kick).lot
# when
first_bid = Wad.from_number(0.0000004)
simulate_model_output(model=model, price=first_bid)
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.flapper.bids(kick).bid == Wad(lot / Rad(first_bid))
# when
second_bid = Wad.from_number(0.0000003)
simulate_model_output(model=model, price=second_bid)
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.flapper.bids(kick).bid == Wad(lot / Rad(second_bid))
# cleanup
time_travel_by(self.web3, self.flapper.ttl() + 1)
assert self.flapper.deal(kick).transact()
def test_should_not_bid_on_rounding_errors_with_small_amounts(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
lot = self.flapper.bids(kick).lot
# when
price = Wad.from_number(9.0)-Wad(5)
simulate_model_output(model=model, price=price)
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.flapper.bids(kick).bid == Wad(lot) / Wad(price)
# when
tx_count = self.web3.eth.getTransactionCount(self.keeper_address.address)
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.web3.eth.getTransactionCount(self.keeper_address.address) == tx_count
# cleanup
time_travel_by(self.web3, self.flapper.ttl() + 1)
assert self.flapper.deal(kick).transact()
def test_should_not_tend_on_rounding_errors_with_small_amounts(
self, mcd, c, kick_small_lot, keeper):
# given
(model, model_factory) = models(keeper, kick_small_lot)
flipper = c.flipper
# when
bid_price = Wad.from_number(3.0)
self.simulate_model_bid(mcd, c, model, bid_price)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
assert flipper.bids(kick_small_lot).bid == Rad(bid_price *
tend_small_lot)
# when
tx_count = self.web3.eth.getTransactionCount(
self.keeper_address.address)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.web3.eth.getTransactionCount(
self.keeper_address.address) == tx_count
def test_should_tick_if_auction_expired_due_to_tau(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
time_travel_by(self.web3, self.flapper.tau() + 1)
# and
simulate_model_output(model=model, price=Wad.from_number(9.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
model.terminate.assert_not_called()
auction = self.flapper.bids(kick)
assert round(Wad(auction.lot) / auction.bid, 2) == round(Wad.from_number(9.0), 2)
# cleanup
time_travel_by(self.web3, self.flapper.ttl() + 1)
model_factory.create_model.assert_called_once()
self.keeper.check_all_auctions()
model.terminate.assert_called_once()
def test_should_use_most_up_to_date_price_for_dent_even_if_it_gets_updated_during_tend(
self, mcd, c, kick, keeper, keeper_address):
# given
(model, model_factory) = models(keeper, kick)
flipper = c.flipper
# when
first_bid_price = Wad.from_number(140)
self.simulate_model_bid(mcd, c, model, first_bid_price)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
auction = flipper.bids(kick)
assert auction.bid == auction.tab
assert auction.lot == tend_lot
# when
second_bid_price = Wad.from_number(150)
self.simulate_model_bid(mcd, c, model, second_bid_price)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
auction = flipper.bids(kick)
assert auction.bid == auction.tab
assert auction.lot == Wad(auction.bid / Rad(second_bid_price))
# cleanup
time_travel_by(self.web3, flipper.ttl() + 1)
assert flipper.deal(kick).transact()
def test_should_overbid_itself_if_model_has_updated_the_price(
self, mcd, c, kick, keeper, keeper_address):
# given
(model, model_factory) = models(keeper, kick)
flipper = c.flipper
# when
first_bid = Wad.from_number(15.0)
self.simulate_model_bid(mcd, c, model, first_bid)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
assert flipper.bids(kick).bid == Rad(first_bid * tend_lot)
# when
second_bid = Wad.from_number(20.0)
self.simulate_model_bid(mcd, c, model, second_bid)
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
assert flipper.bids(kick).bid == Rad(second_bid * tend_lot)
# cleanup
time_travel_by(self.web3, flipper.ttl() + 1)
assert flipper.deal(kick).transact()
def test_should_start_a_new_model_and_provide_it_with_info_on_auction_start(
self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once_with(
Parameters(collateral_auction_house=None,
surplus_auction_house=None,
debt_auction_house=self.debt_auction_house.address,
staked_token_auction_house=None,
id=auction_id))
# and
status = model.send_status.call_args[0][0]
assert status.id == auction_id
assert status.collateral_auction_house is None
assert status.surplus_auction_house is None
assert status.debt_auction_house == self.debt_auction_house.address
assert status.bid_amount > Rad.from_number(0)
assert status.amount_to_sell == self.geb.accounting_engine.initial_debt_auction_minted_tokens(
)
assert status.amount_to_raise is None
assert status.bid_decrease > Wad.from_number(1)
assert status.high_bidder == self.geb.accounting_engine.address
assert status.block_time > 0
assert status.auction_deadline < status.block_time + self.debt_auction_house.total_auction_length(
) + 1
assert status.bid_expiry == 0
assert status.price == Wad(status.bid_amount *
self.geb.oracle_relayer.redemption_price() /
Rad(status.amount_to_sell))
def test_should_restart_auction_if_auction_expired_due_to_total_auction_length(
self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
time_travel_by(self.web3,
self.debt_auction_house.total_auction_length() + 1)
# and
simulate_model_output(model=model, price=Wad.from_number(555.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
model.terminate.assert_not_called()
auction = self.debt_auction_house.bids(auction_id)
assert round(
auction.bid_amount * self.geb.oracle_relayer.redemption_price() /
Rad(auction.amount_to_sell), 2) == round(Rad.from_number(555.0), 2)
# cleanup
time_travel_by(self.web3, self.debt_auction_house.bid_duration() + 1)
model_factory.create_model.assert_called_once()
self.keeper.check_all_auctions()
model.terminate.assert_called_once()
def test_should_overbid_itself_if_model_has_updated_the_price(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
# when
simulate_model_output(model=model, price=Wad.from_number(100.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert round(Rad(self.flopper.bids(kick).lot),
2) == round(self.sump / Rad.from_number(100.0), 2)
# when
simulate_model_output(model=model, price=Wad.from_number(110.0))
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.lot_implies_price(kick, Wad.from_number(110.0))
# cleanup
time_travel_by(self.web3, self.flopper.ttl() + 1)
assert self.flopper.deal(kick).transact()
def test_should_increase_gas_price_of_pending_transactions_if_model_increases_gas_price(
self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
# when
simulate_model_output(model=model,
price=Wad.from_number(120.0),
gas_price=10)
# and
self.start_ignoring_transactions()
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
# and
time.sleep(2)
# and
self.end_ignoring_transactions()
# and
simulate_model_output(model=model,
price=Wad.from_number(120.0),
gas_price=15)
# and
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.lot_implies_price(kick, Wad.from_number(120.0))
assert self.web3.eth.getBlock(
'latest', full_transactions=True).transactions[0].gasPrice == 15
# cleanup
time_travel_by(self.web3, self.flopper.ttl() + 1)
assert self.flopper.deal(kick).transact()
def test_should_bid_even_if_there_is_already_a_bidder(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
mkr_before = self.mcd.mkr.balance_of(self.keeper_address)
# and
lot = Wad.from_number(0.000016)
assert self.flopper.dent(
kick, lot, self.sump).transact(from_address=self.other_address)
assert self.flopper.bids(kick).lot == lot
# when
simulate_model_output(model=model, price=Wad.from_number(825.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
auction = self.flopper.bids(kick)
assert auction.lot != lot
assert round(auction.bid / Rad(auction.lot),
2) == round(Rad.from_number(825.0), 2)
mkr_after = self.mcd.mkr.balance_of(self.keeper_address)
assert mkr_before == mkr_after
# cleanup
time_travel_by(self.web3, self.flopper.ttl() + 1)
assert self.flopper.deal(kick).transact()
def test_should_terminate_model_if_auction_expired_due_to_ttl_and_somebody_else_won_it(
self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
self.dent(kick, self.other_address, Wad.from_number(0.000015),
self.sump)
# and
time_travel_by(self.web3, self.flopper.ttl() + 1)
# and
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_called_once()
# cleanup
assert self.flopper.deal(kick).transact()
def test_should_take_partial_if_insufficient_dai_available(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
(needs_redo, price, initial_lot, initial_tab) = self.clipper.status(kick)
assert initial_lot == Wad.from_number(1)
# and we exit all Dai out of the Vat
assert self.mcd.dai_adapter.exit(self.keeper_address, Wad(self.mcd.vat.dai(self.keeper_address)))\
.transact(from_address=self.keeper_address)
# when we have less Dai than we need to cover the auction
our_price = Ray.from_number(187)
assert our_price < price
dai_needed = initial_lot * Wad(our_price)
half_dai = dai_needed / Wad.from_number(2)
initial_dai_balance = Wad(self.mcd.vat.dai(self.keeper_address))
if initial_dai_balance < half_dai:
print(f"Reserving {half_dai - initial_dai_balance} Dai to get balance of {half_dai}")
reserve_dai(self.mcd, self.dai_collateral, self.keeper_address, half_dai - initial_dai_balance)
else:
print(f"Abandoning {initial_dai_balance - half_dai} Dai to get balance of {half_dai}")
self.mcd.vat.move(self.keeper_address, self.gal_address, Rad(initial_dai_balance - half_dai))\
.transact(from_address=keeper_address)
dai_balance_before_take = Wad(self.mcd.vat.dai(self.keeper_address))
assert Wad(0) < dai_balance_before_take < dai_needed
# then ensure we don't bid when the price is too high
self.simulate_model_bid(model, our_price, reserve_dai_for_bid=False)
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
(needs_redo, price, lot, tab) = self.clipper.status(kick)
assert lot == initial_lot
assert tab == initial_tab
# when we wait for the price to become appropriate
while lot > Wad(0):
time_travel_by(self.web3, 1)
(needs_redo, auction_price, lot, tab) = self.clipper.status(kick)
if auction_price < our_price:
break
# then ensure our bid is submitted using available Dai
# self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
(needs_redo, price, lot, tab) = self.clipper.status(kick)
assert Wad(0) < lot < initial_lot
our_take = self.last_log()
assert isinstance(our_take, Clipper.TakeLog)
assert Wad(self.mcd.vat.dai(self.keeper_address)) < dai_balance_before_take
# and ensure we don't place a subsequent dusty bid afterward
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
our_take2 = self.last_log()
assert our_take.tx_hash == our_take2.tx_hash
# cleanup
self.take_below_price(kick, price, self.keeper_address)
def test_should_terminate_model_if_auction_expired_due_to_ttl_and_somebody_else_won_it(
self, mcd, c, kick, other_address, keeper):
# given
(model, model_factory) = models(keeper, kick)
flipper = c.flipper
# when
keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
flipper.approve(
flipper.vat(),
approval_function=hope_directly(from_address=other_address))
new_bid_amount = Rad.from_number(85)
self.tend_with_dai(mcd, c, flipper, kick, other_address,
new_bid_amount)
# and
time_travel_by(self.web3, flipper.ttl() + 1)
# and
keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_called_once()
# cleanup
assert flipper.deal(kick).transact()
def test_should_terminate_model_if_auction_is_settled(self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
self.decrease_sold_amount(auction_id, self.other_address,
Wad.from_number(0.000016),
self.debt_auction_bid_size)
# and
time_travel_by(self.web3, self.debt_auction_house.bid_duration() + 1)
# and
self.debt_auction_house.settle_auction(auction_id).transact(
from_address=self.other_address)
# and
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_called_once()
def test_should_terminate_model_if_auction_is_dealt(
self, mcd, c, kick, other_address, keeper):
# given
(model, model_factory) = models(keeper, kick)
flipper = c.flipper
# when
keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
self.tend_with_dai(mcd, c, flipper, kick, other_address,
Rad.from_number(90))
# and
time_travel_by(self.web3, flipper.ttl() + 1)
# and
flipper.deal(kick).transact(from_address=other_address)
# and
keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_called_once()
def test_should_bid_even_if_there_is_already_a_bidder(self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
prot_before = self.geb.prot.balance_of(self.keeper_address)
# and
amount_to_sell = Wad.from_number(0.000016)
assert self.debt_auction_house.decrease_sold_amount(
auction_id, amount_to_sell, self.debt_auction_bid_size).transact(
from_address=self.other_address)
assert self.debt_auction_house.bids(
auction_id).amount_to_sell == amount_to_sell
# when
simulate_model_output(model=model, price=Wad.from_number(825.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
auction = self.debt_auction_house.bids(auction_id)
assert auction.amount_to_sell != amount_to_sell
assert round(
auction.bid_amount * self.geb.oracle_relayer.redemption_price() /
Rad(auction.amount_to_sell), 2) == round(Rad.from_number(825.0), 2)
prot_after = self.geb.prot.balance_of(self.keeper_address)
assert prot_before == prot_after
# cleanup
time_travel_by(self.web3, self.debt_auction_house.bid_duration() + 1)
assert self.debt_auction_house.settle_auction(auction_id).transact()
def test_should_only_tend_if_bid_is_only_slightly_above_tab(
self, mcd, c, kick, keeper, keeper_address):
# given
(model, model_factory) = models(keeper, kick)
flipper = c.flipper
# when
auction = flipper.bids(kick)
bid_price = Wad(auction.tab) + Wad.from_number(0.1)
self.simulate_model_bid(mcd, c, model, bid_price)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
auction = flipper.bids(kick)
assert auction.bid == auction.tab
assert auction.lot == tend_lot
# when
keeper.check_all_auctions()
wait_for_other_threads()
# then
auction = flipper.bids(kick)
assert auction.bid == auction.tab
assert auction.lot == tend_lot
# cleanup
time_travel_by(self.web3, flipper.ttl() + 1)
assert flipper.deal(kick).transact()
def test_should_overbid_itself_if_model_has_updated_the_price(
self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
# when
simulate_model_output(model=model, price=Wad.from_number(100.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert round(
Rad(self.debt_auction_house.bids(auction_id).amount_to_sell),
2) == round(self.debt_auction_bid_size / Rad.from_number(100.0), 2)
# when
simulate_model_output(model=model, price=Wad.from_number(110.0))
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.amount_to_sell_implies_price(auction_id,
Wad.from_number(110.0))
# cleanup
time_travel_by(self.web3, self.debt_auction_house.bid_duration() + 1)
assert self.debt_auction_house.settle_auction(auction_id).transact()
def test_should_increase_gas_price_of_pending_transactions_if_model_increases_gas_price(
self, mcd, c, kick, keeper):
# given
(model, model_factory) = models(keeper, kick)
flipper = c.flipper
# when
bid_price = Wad.from_number(20.0)
reserve_dai(mcd, c, self.keeper_address, bid_price * tend_lot * 2)
simulate_model_output(model=model, price=bid_price, gas_price=10)
# and
self.start_ignoring_transactions()
# and
keeper.check_all_auctions()
keeper.check_for_bids()
# and
simulate_model_output(model=model, price=bid_price, gas_price=15)
# and
self.end_ignoring_transactions()
# and
keeper.check_for_bids()
wait_for_other_threads()
# then
assert flipper.bids(kick).bid == Rad(bid_price * tend_lot)
assert self.web3.eth.getBlock(
'latest', full_transactions=True).transactions[0].gasPrice == 15
# cleanup
time_travel_by(self.web3, flipper.ttl() + 1)
assert flipper.deal(kick).transact()
def test_should_replace_pending_transactions_if_model_lowers_bid_and_increases_gas_price(
self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
# when
simulate_model_output(model=model,
price=Wad.from_number(80.0),
gas_price=10)
# and
self.start_ignoring_transactions()
# and
self.keeper.check_all_auctions()
# and
time.sleep(2)
# and
self.end_ignoring_transactions()
# and
simulate_model_output(model=model,
price=Wad.from_number(70.0),
gas_price=15)
# and
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.amount_to_sell_implies_price(auction_id,
Wad.from_number(70.0))
assert self.web3.eth.getBlock(
'latest', full_transactions=True).transactions[0].gasPrice == 15
# cleanup
time_travel_by(self.web3, self.debt_auction_house.bid_duration() + 1)
assert self.debt_auction_house.settle_auction(auction_id).transact()
def test_should_not_dent_on_rounding_errors_with_small_amounts(
self, mcd, c, keeper):
# given
flipper = c.flipper
kick_small_lot = flipper.kicks()
(model, model_factory) = models(keeper, kick_small_lot)
# when
auction = flipper.bids(kick_small_lot)
bid_price = Wad(auction.tab / Rad(tend_small_lot))
self.simulate_model_bid(mcd, c, model, bid_price)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
assert flipper.bids(kick_small_lot).lot == auction.lot
# when
tx_count = self.web3.eth.getTransactionCount(
self.keeper_address.address)
# and
keeper.check_all_auctions()
keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.web3.eth.getTransactionCount(
self.keeper_address.address) == tx_count
def test_should_not_bid_on_rounding_errors_with_small_amounts(
self, auction_id):
# given
(model, model_factory) = models(self.keeper, auction_id)
# when
simulate_model_output(model=model, price=Wad.from_number(1400.0))
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.debt_auction_house.bids(auction_id).amount_to_sell == Wad(
self.debt_auction_bid_size *
self.geb.oracle_relayer.redemption_price() /
Rad.from_number(1400.0))
# when
tx_count = self.web3.eth.getTransactionCount(
self.keeper_address.address)
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.web3.eth.getTransactionCount(
self.keeper_address.address) == tx_count
def test_should_terminate_model_if_auction_is_dealt(self, kick):
# given
kick = self.flapper.kicks()
(model, model_factory) = models(self.keeper, kick)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
auction = self.flapper.bids(kick)
assert self.flapper.tend(kick, auction.lot, Wad.from_number(40)).transact(from_address=self.other_address)
# and
time_travel_by(self.web3, self.flapper.ttl() + 1)
# and
assert self.flapper.deal(kick).transact(from_address=self.other_address)
# and
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_called_once()
def test_should_start_a_new_model_and_provide_it_with_info_on_auction_kick(
self, c, kick, mcd, keeper):
# given
(model, model_factory) = models(keeper, kick)
# when
keeper.check_all_auctions()
wait_for_other_threads()
initial_bid = c.flipper.bids(kick)
# then
model_factory.create_model.assert_called_once_with(
Parameters(flipper=c.flipper.address,
flapper=None,
flopper=None,
id=kick))
# and
status = model.send_status.call_args[0][0]
assert status.id == kick
assert status.flipper == c.flipper.address
assert status.flapper is None
assert status.flopper is None
assert status.bid == Rad.from_number(0)
assert status.lot == initial_bid.lot
assert status.tab == initial_bid.tab
assert status.beg > Wad.from_number(1)
assert status.guy == mcd.cat.address
assert status.era > 0
assert status.end < status.era + c.flipper.tau() + 1
assert status.tic == 0
assert status.price == Wad(0)
def test_should_replace_pending_transactions_if_model_lowers_bid_and_increases_gas_price(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
lot = self.flapper.bids(kick).lot
# when
simulate_model_output(model=model, price=Wad.from_number(10.0), gas_price=10)
# and
self.start_ignoring_transactions()
# and
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
# and
self.end_ignoring_transactions()
# and
simulate_model_output(model=model, price=Wad.from_number(8.0), gas_price=15)
# and
self.keeper.check_for_bids()
wait_for_other_threads()
# then
assert self.flapper.bids(kick).bid == Wad(lot) / Wad.from_number(8.0)
assert self.web3.eth.getBlock('latest', full_transactions=True).transactions[0].gasPrice == 15
# cleanup
time_travel_by(self.web3, self.flapper.ttl() + 1)
assert self.flapper.deal(kick).transact()
def test_should_terminate_model_if_auction_expired_due_to_tau(
self, c, keeper):
# given
flipper = c.flipper
kick = flipper.kicks()
(model, model_factory) = models(keeper, kick)
# when
keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_not_called()
# when
time_travel_by(self.web3, flipper.tau() + 1)
# and
keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once()
model.terminate.assert_called_once()
# cleanup
assert flipper.deal(kick).transact()
def test_should_start_a_new_model_and_provide_it_with_info_on_auction_kick(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
# then
model_factory.create_model.assert_called_once_with(Parameters(flipper=None,
flapper=self.flapper.address,
flopper=None,
id=kick))
# and
status = model.send_status.call_args[0][0]
assert status.id == kick
assert status.flipper is None
assert status.flapper == self.flapper.address
assert status.flopper is None
assert status.bid == Wad(0)
assert status.lot == self.mcd.vow.bump()
assert status.tab is None
assert status.beg == Wad.from_number(1.05)
assert status.guy == self.mcd.vow.address
assert status.era > 0
assert status.end < status.era + self.flapper.tau() + 1
assert status.tic == 0
assert status.price is None
def test_should_take_when_price_appropriate(self, kick):
# given
(model, model_factory) = models(self.keeper, kick)
# when
our_price = Ray.from_number(153)
self.simulate_model_bid(model, our_price)
while True:
time_travel_by(self.web3, 1)
self.keeper.check_all_auctions()
self.keeper.check_for_bids()
wait_for_other_threads()
lot = self.clipper.sales(kick).lot
(needs_redo, auction_price, lot, tab) = self.clipper.status(kick)
# when auction price is unacceptable
if auction_price > our_price:
# then ensure no action is taken
assert self.clipper.sales(kick).lot > Wad(0)
assert not needs_redo
# when auction price is acceptable
else:
# then ensure take was called
assert self.clipper.sales(kick).lot == Wad(0)
break
# and ensure the take price was appropriate
our_take = self.last_log()
assert isinstance(our_take, Clipper.TakeLog)
assert our_take.price <= our_price
