def test_liquidation_and_collateral_auction(
self, web3, geb, auction_income_recipient_address, keeper_address):
# given
c = geb.collaterals['ETH-A']
set_collateral_price(geb, c, Wad.from_number(500))
keeper = AuctionKeeper(args=args(
f"--eth-from {keeper_address} "
f"--type collateral "
f"--from-block 1 "
f"--collateral-type {c.collateral_type.name} "
f"--model ./bogus-model.sh"),
web3=geb.web3)
keeper.approve()
unsafe_safe = create_critical_safe(geb, c, Wad.from_number(1.2),
auction_income_recipient_address)
assert len(geb.active_auctions()["collateral_auctions"][
c.collateral_type.name]) == 0
# Keeper won't bid with a 0 system coin balance
purchase_system_coin(Wad.from_number(20), keeper_address)
assert geb.system_coin_adapter.join(
keeper_address,
Wad.from_number(20)).transact(from_address=keeper_address)
# when
keeper.check_safes()
wait_for_other_threads()
# then
assert len(geb.liquidation_engine.past_liquidations(10)) > 0
safe = geb.safe_engine.safe(unsafe_safe.collateral_type,
unsafe_safe.address)
assert safe.generated_debt == Wad(0) # unsafe safe has been liquidated
assert safe.locked_collateral == Wad(0) # unsafe safe is now safe ...
assert c.collateral_auction_house.auctions_started(
) == 1 # One auction started
class TestAuctionKeeperCollateralFlashSwap(TransactionIgnoringTest):
def teardown_method(self, test_method):
pass
def setup_class(self):
""" I'm excluding initialization of a specific collateral perchance we use multiple collaterals
to improve test speeds. This prevents us from instantiating the keeper as a class member. """
self.web3 = get_web3()
self.geb = get_geb(self.web3)
self.keeper_address = get_keeper_address(self.web3)
self.collateral = self.geb.collaterals['ETH-B']
self.min_auction = self.collateral.collateral_auction_house.auctions_started(
) + 1
self.keeper = AuctionKeeper(args=args(
f"--eth-from {self.keeper_address.address} "
f"--type collateral "
f"--flash-swap "
f"--from-block {self.geb.starting_block_number} "
f"--min-auction {self.min_auction} "
f"--model ../models/collateral_model.sh "
f"--collateral-type {self.collateral.collateral_type.name}"),
web3=self.geb.web3)
self.keeper.approve()
#flash-swap should disable rebalance
assert self.keeper.rebalance_system_coin() == Wad(0)
assert isinstance(self.keeper.gas_price, DynamicGasPrice)
self.default_gas_price = self.keeper.gas_price.get_gas_price(0)
@staticmethod
def collateral_balance(address: Address, c: Collateral) -> Wad:
assert (isinstance(address, Address))
assert (isinstance(c, Collateral))
return Wad(c.collateral.balance_of(address))
@staticmethod
def buy_collateral(
collateral_auction_house: FixedDiscountCollateralAuctionHouse,
id: int, address: Address, bid_amount: Wad):
assert (isinstance(collateral_auction_house,
FixedDiscountCollateralAuctionHouse))
assert (isinstance(id, int))
assert (isinstance(bid_amount, Wad))
current_bid = collateral_auction_house.bids(id)
assert current_bid.auction_deadline > datetime.now().timestamp()
assert bid_amount <= Wad(current_bid.amount_to_raise)
assert collateral_auction_house.buy_collateral(
id, bid_amount).transact(from_address=address)
@staticmethod
def buy_collateral_with_system_coin(
geb: GfDeployment, c: Collateral,
collateral_auction_house: FixedDiscountCollateralAuctionHouse,
id: int, address: Address, bid_amount: Wad):
assert (isinstance(geb, GfDeployment))
assert (isinstance(c, Collateral))
assert (isinstance(collateral_auction_house,
FixedDiscountCollateralAuctionHouse))
assert (isinstance(id, int))
assert (isinstance(bid_amount, Wad))
collateral_auction_house.approve(
collateral_auction_house.safe_engine(),
approval_function=approve_safe_modification_directly(
from_address=address))
previous_bid = collateral_auction_house.bids(id)
c.approve(address)
reserve_system_coin(geb,
c,
address,
bid_amount,
extra_collateral=Wad.from_number(2))
TestAuctionKeeperCollateralFlashSwap.buy_collateral(
collateral_auction_house, id, address, bid_amount)
def simulate_model_bid(self,
geb: GfDeployment,
c: Collateral,
model: object,
gas_price: Optional[int] = None):
assert (isinstance(geb, GfDeployment))
assert (isinstance(c, Collateral))
assert (isinstance(gas_price, int)) or gas_price is None
collateral_auction_house = c.collateral_auction_house
initial_bid = collateral_auction_house.bids(model.id)
assert initial_bid.amount_to_sell > Wad(0)
our_bid = Wad.from_number(500) * initial_bid.amount_to_sell
reserve_system_coin(geb,
c,
self.keeper_address,
our_bid,
extra_collateral=Wad.from_number(2))
simulate_model_output(model=model,
price=Wad.from_number(500),
gas_price=gas_price)
def test_collateral_auction_house_address(self):
assert self.keeper.collateral_auction_house.address == self.collateral.collateral_auction_house.address
def test_flash_proxy_settle_auction(self, c: Collateral, web3, geb,
auction_id, other_address):
# given
collateral_auction_house = self.collateral.collateral_auction_house
if not isinstance(collateral_auction_house,
FixedDiscountCollateralAuctionHouse):
return
set_collateral_price(geb, c, Wad.from_number(100))
eth_before = self.web3.eth.getBalance(self.keeper_address.address)
# when
self.keeper.check_all_auctions()
wait_for_other_threads()
assert self.web3.eth.getBalance(
self.keeper_address.address) > eth_before
current_status = collateral_auction_house.bids(auction_id)
assert current_status.raised_amount == Rad(0)
assert current_status.sold_amount == Wad(0)
assert current_status.amount_to_raise == Rad(0)
assert current_status.amount_to_sell == Wad(0)
assert current_status.auction_deadline == 0
assert current_status.raised_amount == Rad(0)
def test_flash_proxy_liquidate_and_settle_auction(self, c: Collateral,
web3, geb, auction_id,
other_address):
# given
collateral_auction_house = self.collateral.collateral_auction_house
if not isinstance(collateral_auction_house,
FixedDiscountCollateralAuctionHouse):
return
set_collateral_price(geb, c, Wad.from_number(100))
eth_before = self.web3.eth.getBalance(self.keeper_address.address)
auctions_started = collateral_auction_house.auctions_started()
# when
critical_safe = create_critical_safe(geb, c, bid_size, other_address)
self.keeper.check_safes()
wait_for_other_threads()
assert self.web3.eth.getBalance(
self.keeper_address.address) > eth_before
assert collateral_auction_house.auctions_started(
) == auctions_started + 1
auction_status = collateral_auction_house.bids(auctions_started + 1)
assert auction_status.raised_amount == Rad(0)
assert auction_status.sold_amount == Wad(0)
assert auction_status.amount_to_raise == Rad(0)
assert auction_status.amount_to_sell == Wad(0)
assert auction_status.auction_deadline == 0
assert auction_status.raised_amount == Rad(0)
