def test_check_settlement(self, geb: GfDeployment, keeper: SettlementKeeper, our_address: Address, other_address: Address): print_out("test_check_settlement") keeper.check_settlement() assert keeper.settlement_facilitated == False assert geb.global_settlement.contract_enabled() == 1 prepare_esm(geb, our_address) fire_esm(geb, our_address) assert keeper.confirmations == 0 for _ in range(0, 12): time_travel_by(geb.web3, 1) keeper.check_settlement() assert keeper.confirmations == 12 keeper.check_settlement() # Facilitate processing period assert keeper.settlement_facilitated == True shutdown_time = geb.global_settlement.shutdown_time() shutdown_cooldown = geb.global_settlement.shutdown_cooldown() shutdown_time_in_unix = shutdown_time.replace( tzinfo=timezone.utc).timestamp() block_number = geb.web3.eth.blockNumber now = geb.web3.eth.getBlock(block_number).timestamp set_outstanding_coin_supply_time = shutdown_time_in_unix + shutdown_cooldown assert now >= set_outstanding_coin_supply_time time_travel_by(geb.web3, 1) keeper.check_settlement( ) # Facilitate cooldown (setting outstanding coin supply) assert keeper.settlement_facilitated == True
def test_check_cage(self, mcd: DssDeployment, keeper: CageKeeper, our_address: Address, other_address: Address): print_out("test_check_cage") keeper.check_cage() assert keeper.cageFacilitated == False assert mcd.end.live() == 1 prepare_esm(mcd, our_address) fire_esm(mcd) assert keeper.confirmations == 0 for i in range(0, 12): time_travel_by(mcd.web3, 1) keeper.check_cage() assert keeper.confirmations == 12 keeper.check_cage() # Facilitate processing period assert keeper.cageFacilitated == True when = mcd.end.when() wait = mcd.end.wait() whenInUnix = when.replace(tzinfo=timezone.utc).timestamp() blockNumber = mcd.web3.eth.blockNumber now = mcd.web3.eth.getBlock(blockNumber).timestamp thawedCage = whenInUnix + wait assert now >= thawedCage time_travel_by(mcd.web3, 1) keeper.check_cage() # Facilitate cooldown (thawing cage)
def test_joy_and_boom(self, deployment: Deployment): # given deployment.tub.join(Wad.from_number(10)).transact() deployment.tub.mold_cap(Wad.from_number(100000)).transact() deployment.tub.mold_tax(Ray(1000100000000000000000000000)).transact() DSValue(web3=deployment.web3, address=deployment.tub.pip()).poke_with_int(Wad.from_number(250).value).transact() # and deployment.tub.open().transact() deployment.tub.lock(1, Wad.from_number(4)).transact() deployment.tub.draw(1, Wad.from_number(1000)).transact() # when time_travel_by(deployment.web3, 3600) deployment.tub.drip().transact() # then assert deployment.skr.balance_of(deployment.our_address) == Wad.from_number(6) assert deployment.tap.joy() == Wad(433303616582911495481) # when deployment.tap.boom(Wad.from_number(1)).transact() # then assert deployment.skr.balance_of(deployment.our_address) == Wad.from_number(5) assert deployment.tap.joy() == Wad(183303616582911495481)
def test_scenario(self, web3, mcd, flapper, our_address, other_address, deployment_address): create_surplus(mcd, flapper, deployment_address) joy_before = mcd.vat.dai(mcd.vow.address) # total surplus > total debt + surplus auction lot size + surplus buffer assert joy_before > mcd.vat.sin( mcd.vow.address) + mcd.vow.bump() + mcd.vow.hump() assert (mcd.vat.sin(mcd.vow.address) - mcd.vow.sin()) - mcd.vow.ash() == Rad(0) assert mcd.vow.flap().transact() kick = flapper.kicks() assert kick == 1 assert len(flapper.active_auctions()) == 1 check_active_auctions(flapper) current_bid = flapper.bids(1) assert current_bid.lot > Rad(0) log = self.last_log(flapper) assert isinstance(log, Flapper.KickLog) assert log.id == kick assert log.lot == current_bid.lot assert log.bid == current_bid.bid # Allow the auction to expire, and then resurrect it time_travel_by(web3, flapper.tau() + 1) assert flapper.tick(kick).transact() # Bid on the resurrected auction mint_mkr(mcd.mkr, our_address, Wad.from_number(10)) flapper.approve(mcd.mkr.address, directly(from_address=our_address)) bid = Wad.from_number(0.001) assert mcd.mkr.balance_of(our_address) > bid TestFlapper.tend(flapper, kick, our_address, current_bid.lot, bid) current_bid = flapper.bids(kick) assert current_bid.bid == bid assert current_bid.guy == our_address # Exercise _deal_ after bid has expired time_travel_by(web3, flapper.ttl() + 1) now = datetime.now().timestamp() assert 0 < current_bid.tic < now or current_bid.end < now assert flapper.deal(kick).transact(from_address=our_address) joy_after = mcd.vat.dai(mcd.vow.address) print(f'joy_before={str(joy_before)}, joy_after={str(joy_after)}') assert joy_before - joy_after == mcd.vow.bump() log = self.last_log(flapper) assert isinstance(log, Flapper.DealLog) assert log.usr == our_address assert log.id == kick # Grab our dai mcd.approve_dai(our_address) assert mcd.dai_adapter.exit(our_address, Wad( current_bid.lot)).transact(from_address=our_address) assert mcd.dai.balance_of(our_address) >= Wad(current_bid.lot) assert (mcd.vat.sin(mcd.vow.address) - mcd.vow.sin()) - mcd.vow.ash() == Rad(0)
def create_debt(web3: Web3, mcd: DssDeployment, our_address: Address, deployment_address: Address): assert isinstance(web3, Web3) assert isinstance(mcd, DssDeployment) assert isinstance(our_address, Address) assert isinstance(deployment_address, Address) # Create a vault collateral = mcd.collaterals['ETH-A'] ilk = collateral.ilk ink = Wad.from_number(10) wrap_eth(mcd, deployment_address, ink) collateral.approve(deployment_address) assert collateral.adapter.join(deployment_address, ink).transact(from_address=deployment_address) frob(mcd, collateral, deployment_address, dink=ink, dart=Wad(0)) dart = max_dart(mcd, collateral, deployment_address) - Wad(1) frob(mcd, collateral, deployment_address, dink=Wad(0), dart=dart) assert not mcd.cat.can_bite(ilk, mcd.vat.urn(collateral.ilk, deployment_address)) # Undercollateralize by dropping the spot price, and then bite the vault to_price = Wad(Web3.toInt(collateral.pip.read())) / Wad.from_number(2) set_collateral_price(mcd, collateral, to_price) urn = mcd.vat.urn(collateral.ilk, deployment_address) assert urn.ink is not None and urn.art is not None assert ilk.spot is not None assert mcd.cat.can_bite(collateral.ilk, urn) assert mcd.cat.bite(collateral.ilk, urn).transact() flip_kick = collateral.flipper.kicks() # Generate some Dai, submit a zero bid to win the flip auction without covering all the debt wrap_eth(mcd, our_address, Wad.from_number(10)) collateral.approve(our_address) assert collateral.adapter.join(our_address, Wad.from_number(10)).transact(from_address=our_address) web3.eth.defaultAccount = our_address.address frob(mcd, collateral, our_address, dink=Wad.from_number(10), dart=Wad.from_number(20)) collateral.flipper.approve(mcd.vat.address, approval_function=hope_directly()) current_bid = collateral.flipper.bids(flip_kick) TestFlipper.tend(collateral.flipper, flip_kick, our_address, current_bid.lot, Rad(1)) mcd.vat.can(our_address, collateral.flipper.address) time_travel_by(web3, collateral.flipper.ttl() + 1) assert collateral.flipper.deal(flip_kick).transact() # Raise debt from the queue (note that vow.wait is 0 on our testchain) assert mcd.vow.wait() == 0 bites = mcd.cat.past_bites(100) assert len(bites) > 0 for bite in bites: era_bite = bite.era(web3) assert era_bite > int(datetime.now().timestamp()) - 120 assert mcd.vow.sin_of(era_bite) > Rad(0) assert mcd.vow.flog(era_bite).transact() assert mcd.vow.sin_of(era_bite) == Rad(0) # Cancel out surplus and debt dai_vow = mcd.vat.dai(mcd.vow.address) assert dai_vow <= mcd.vow.woe() assert mcd.vow.heal(dai_vow).transact() assert mcd.vow.woe() >= mcd.vow.sump()
def test_flog(self, web3, d: DssDeployment, bite_event): # given time_travel_by(web3, d.vow.wait() + 10) era = web3.eth.getBlock(bite_event.raw['blockNumber'])['timestamp'] assert d.vow.sin_of(era) != Wad(0) # when assert d.vow.flog(era).transact() # then assert d.vow.sin_of(era) == Wad(0)
def test_scenario(self, web3, mcd, flopper, our_address, other_address, deployment_address): create_debt(web3, mcd, our_address, deployment_address) # Kick off the flop auction assert flopper.kicks() == 0 assert len(flopper.active_auctions()) == 0 assert mcd.vat.dai(mcd.vow.address) == Rad(0) assert mcd.vow.flop().transact() kick = flopper.kicks() assert kick == 1 assert len(flopper.active_auctions()) == 1 check_active_auctions(flopper) current_bid = flopper.bids(kick) log = self.last_log(flopper) assert isinstance(log, Flopper.KickLog) assert log.id == kick assert log.lot == current_bid.lot assert log.bid == current_bid.bid assert log.gal == mcd.vow.address # Allow the auction to expire, and then resurrect it time_travel_by(web3, flopper.tau() + 1) assert flopper.tick(kick).transact() assert flopper.bids(kick).lot == current_bid.lot * flopper.pad() # Bid on the resurrected auction bid = Wad.from_number(0.000005) flopper.approve(mcd.vat.address, hope_directly()) assert mcd.vat.can(our_address, flopper.address) TestFlopper.dent(flopper, kick, our_address, bid, current_bid.bid) current_bid = flopper.bids(kick) assert current_bid.guy == our_address # Confirm victory time_travel_by(web3, flopper.ttl() + 1) assert flopper.live() now = int(datetime.now().timestamp()) assert (current_bid.tic < now and current_bid.tic != 0) or current_bid.end < now mkr_before = mcd.mkr.balance_of(our_address) assert flopper.deal(kick).transact(from_address=our_address) mkr_after = mcd.mkr.balance_of(our_address) assert mkr_after > mkr_before log = self.last_log(flopper) assert isinstance(log, Flopper.DealLog) assert log.usr == our_address assert log.id == kick # Cleanup collateral = mcd.collaterals['ETH-A'] set_collateral_price(mcd, collateral, Wad.from_number(230))
def test_drip_and_chi_and_rho(self, deployment: Deployment): # given deployment.tub.mold_tax(Ray(1000000000000000020000000000)).transact() old_chi = deployment.tub.chi() old_rho = deployment.tub.rho() # when time_travel_by(deployment.web3, 1000) deployment.tub.drip().transact() # then assert deployment.tub.chi() > old_chi assert deployment.tub.rho() > old_rho
def test_supply_pie_dai(self, mcd: DssDeployment, our_address: Address): dai = pytest.global_dai chi1 = mcd.pot.chi() # assert chi1 == Ray.from_number(1) Commented out in case there's some initial state on testchain pie = Wad(Rad(dai) / Rad(chi1)) assert mcd.dsr_manager.supply() == pie assert mcd.dsr_manager.pie_of(our_address) == pie time_travel_by(web3=mcd.web3, seconds=10) assert mcd.pot.drip().transact(from_address=our_address) chi2 = mcd.pot.chi() assert chi1 != chi2 dai = Rad(pie) * Rad(chi2) assert mcd.dsr_manager.dai_of(our_address) == dai
def test_scenario(self): # given self.dai_mint(Wad.from_number(100000)) assert self.gem.mint(Wad.from_number(100)).transact() assert self.gem.transfer(self.other_address_1, Wad.from_number(100)).transact() assert self.dai_balance(self.our_address) == Wad.from_number(100000) # when self.flipper.kick(urn=self.other_address_1, gal=self.other_address_1, tab=Wad.from_number(5000), lot=Wad.from_number(100), bid=Wad.from_number(1000)).transact(from_address=self.other_address_1) # then assert self.dai_balance(self.our_address) == Wad.from_number(100000) assert self.dai_balance(self.other_address_1) == Wad.from_number(0) assert self.gem_balance(self.our_address) == Wad.from_number(0) assert self.gem_balance(self.other_address_1) == Wad.from_number(0) # when self.flipper.tend(1, Wad.from_number(100), Wad.from_number(2000)).transact() assert self.dai_balance(self.our_address) == Wad.from_number(100000) - Wad.from_number(2000) assert self.dai_balance(self.other_address_1) == Wad.from_number(2000) assert self.gem_balance(self.our_address) == Wad.from_number(0) assert self.gem_balance(self.other_address_1) == Wad.from_number(0) # when self.flipper.tend(1, Wad.from_number(100), Wad.from_number(5000)).transact() assert self.dai_balance(self.our_address) == Wad.from_number(100000) - Wad.from_number(5000) assert self.dai_balance(self.other_address_1) == Wad.from_number(5000) assert self.gem_balance(self.our_address) == Wad.from_number(0) assert self.gem_balance(self.other_address_1) == Wad.from_number(0) # when self.flipper.dent(1, Wad.from_number(80), Wad.from_number(5000)).transact() assert self.dai_balance(self.our_address) == Wad.from_number(100000) - Wad.from_number(5000) assert self.dai_balance(self.other_address_1) == Wad.from_number(5000) assert self.gem_balance(self.our_address) == Wad.from_number(0) assert self.gem_balance(self.other_address_1) == Wad.from_number(20) time_travel_by(self.web3, 60*60*24*8) # when self.flipper.deal(1).transact() assert self.dai_balance(self.our_address) == Wad.from_number(100000) - Wad.from_number(5000) assert self.dai_balance(self.other_address_1) == Wad.from_number(5000) assert self.gem_balance(self.our_address) == Wad.from_number(80) assert self.gem_balance(self.other_address_1) == Wad.from_number(20)
def test_close_cdp(self, web3, mcd, our_address): collateral = mcd.collaterals['ETH-A'] ilk = collateral.ilk assert mcd.end.free(ilk).transact() assert mcd.vat.urn(ilk, our_address).ink == Wad(0) assert mcd.vat.gem(ilk, our_address) > Wad(0) assert collateral.adapter.exit(our_address, mcd.vat.gem(ilk, our_address)).transact() assert mcd.end.wait() == 5 time_travel_by(web3, 5) assert mcd.end.thaw().transact() assert mcd.end.flow(ilk).transact() assert mcd.end.fix(ilk) > Ray(0)
def test_scenario(self): # given pit = Address(self.web3.eth.accounts[1]) # and self.dai.mint(Wad.from_number(50000000)).transact() self.gem.mint(Wad.from_number(1000)).transact() # when self.dai.approve(self.flapper.address).transact() self.flapper.kick(pit, Wad.from_number(20000), Wad.from_number(1)).transact() # then assert self.dai.balance_of(self.our_address) == Wad.from_number(49980000) assert self.gem.balance_of(pit) == Wad.from_number(0) # and assert self.flapper.bids(1).tic == 0 self.flapper.approve(directly()) # when self.flapper.tend(1, Wad.from_number(20000), Wad.from_number(1.5)).transact() # then assert self.dai.balance_of(self.our_address) == Wad.from_number(49980000) assert self.gem.balance_of(pit) == Wad.from_number(0.5) # and assert self.flapper.bids(1).tic > 0 # when self.flapper.tend(1, Wad.from_number(20000), Wad.from_number(2.0)).transact() # then assert self.dai.balance_of(self.our_address) == Wad.from_number(49980000) assert self.gem.balance_of(pit) == Wad.from_number(1.0) # and assert self.flapper.bids(1).tic > 0 time_travel_by(self.web3, 60*60*24*8) # when self.flapper.deal(1).transact() # then # assert self.dai.balance_of(self.our_address) == Wad.from_number(50000000) assert self.gem.balance_of(pit) == Wad.from_number(1.0)
def test_close_safe(self, web3, geb, our_address): collateral = geb.collaterals['ETH-A'] collateral_type = collateral.collateral_type assert geb.global_settlement.free_collateral( collateral_type).transact() assert geb.safe_engine.safe(collateral_type, our_address).locked_collateral == Wad(0) assert geb.safe_engine.token_collateral(collateral_type, our_address) > Wad(0) assert collateral.adapter.exit( our_address, geb.safe_engine.token_collateral(collateral_type, our_address)).transact() assert geb.global_settlement.shutdown_cooldown() == 0 time_travel_by(web3, 5) assert geb.global_settlement.set_outstanding_coin_supply().transact() assert geb.global_settlement.calculate_cash_price( collateral_type).transact() assert geb.global_settlement.collateral_cash_price( collateral_type) > Ray(0)
def test_scenario(self): # given recidaint = Address(self.web3.eth.accounts[1]) # and self.dai.mint(Wad.from_number(50000000)).transact() # when self.flopper.kick(recidaint, Wad.from_number(10), Wad.from_number(20000)).transact() # then assert self.dai.balance_of(recidaint) == Wad(0) assert self.gem.total_supply() == Wad(0) # and assert self.flopper.bids(1).tic == 0 self.flopper.approve(directly()) # when self.flopper.dent(1, Wad.from_number(9), Wad.from_number(20000)).transact() # then assert self.dai.balance_of(recidaint) == Wad.from_number(20000) assert self.gem.total_supply() == Wad(0) # and assert self.flopper.bids(1).tic > 0 # when self.flopper.dent(1, Wad.from_number(8), Wad.from_number(20000)).transact() # then assert self.dai.balance_of(recidaint) == Wad.from_number(20000) assert self.gem.total_supply() == Wad(0) # and assert self.flopper.bids(1).tic > 0 time_travel_by(self.web3, 60*60*24*8) # when self.flopper.deal(1).transact() # then assert self.dai.balance_of(recidaint) == Wad.from_number(20000) assert self.gem.total_supply() == Wad.from_number(8)
def test_get_orders_by_block(self): if isinstance(self.otc, MatchingMarket): token1_val = self.token1_tokenclass token2_val = self.token2_tokenclass # given maker1 = self.our_address # when self.otc.approve([self.token1], directly()) made_order = self.otc.make(token1_val, Wad.from_number(1), token2_val, Wad.from_number(2)).transact() block_number = made_order.raw_receipt.blockNumber # and when time_travel_by(self.web3, 10) assert len(self.otc.get_orders_by_maker(maker1)) == 1 self.otc.kill(1).transact(gas=4000000) assert len(self.otc.get_orders_by_maker(maker1)) == 0 # then time_travel_by(self.web3, 10) assert len(self.otc.get_orders(token1_val, token2_val, block_number)) == 1
def test_scenario(self, web3, mcd, collateral, clipper, our_address, other_address, deployment_address): dirt_before = mcd.dog.dog_dirt() vice_before = mcd.vat.vice() sin_before = mcd.vow.sin() # Create a vault ilk = collateral.ilk ink = Wad.from_number(1) wrap_eth(mcd, deployment_address, ink) collateral.approve(deployment_address) assert collateral.adapter.join( deployment_address, ink).transact(from_address=deployment_address) frob(mcd, collateral, deployment_address, dink=ink, dart=Wad(0)) dart = max_dart(mcd, collateral, deployment_address) - Wad(1) frob(mcd, collateral, deployment_address, dink=Wad(0), dart=dart) # Mint and withdraw all the Dai mcd.approve_dai(deployment_address) assert mcd.dai_adapter.exit( deployment_address, dart).transact(from_address=deployment_address) # Undercollateralize the vault to_price = Wad(Web3.toInt(collateral.pip.read())) / Wad.from_number(2) set_collateral_price(mcd, collateral, to_price) urn = mcd.vat.urn(collateral.ilk, deployment_address) ilk = mcd.vat.ilk(ilk.name) safe = Ray(urn.art) * mcd.vat.ilk(ilk.name).rate <= Ray( urn.ink) * ilk.spot assert not safe assert clipper.active_count() == 0 # Bark the vault, which moves debt to the vow and kicks the clipper dai_before_bark: Rad = mcd.vat.dai(our_address) urn = mcd.vat.urn(collateral.ilk, deployment_address) assert urn.ink > Wad(0) tab = urn.art * ilk.rate # Wad assert tab == dart assert mcd.dog.bark(ilk, urn).transact() barks = mcd.dog.past_barks(1) assert len(barks) == 1 last_bite = barks[0] assert last_bite.due > Rad(0) assert clipper.active_count() == 1 kick = clipper.kicks() assert kick == 1 assert len(clipper.active_auctions()) == 1 assert clipper.active_auctions()[0].id == 1 assert mcd.active_auctions()['clips']['ETH-B'][0].id == 1 urn = mcd.vat.urn(collateral.ilk, deployment_address) (needs_redo, price, lot, tab) = clipper.status(kick) assert not needs_redo assert price == Ray.from_number(172.5) assert lot == ink assert float(tab) == 105.0 # Check vat, vow, and dog assert urn.ink == Wad(0) assert vice_before < mcd.vat.vice() assert sin_before < mcd.vow.sin() assert dirt_before < mcd.dog.dog_dirt() # Check the clipper current_sale = clipper.sales(kick) assert isinstance(current_sale, Clipper.Sale) assert current_sale.pos == 0 assert float(current_sale.tab) == 105.0 assert current_sale.lot == ink assert current_sale.usr == deployment_address assert current_sale.tic > 0 assert round(current_sale.top, 1) == price coin = Rad(clipper.tip() + (current_sale.tab * clipper.chip())) # Confirm we received our liquidation reward dai_after_bark: Rad = mcd.vat.dai(our_address) assert dai_after_bark == dai_before_bark + coin kick_log = self.last_log(clipper) assert isinstance(kick_log, Clipper.KickLog) assert kick_log.id == kick assert kick_log.top == current_sale.top assert kick_log.tab == current_sale.tab assert kick_log.lot == current_sale.lot assert kick_log.usr == deployment_address assert kick_log.kpr == our_address assert kick_log.coin == coin # Wrap some eth and handle approvals before bidding eth_required = Wad( current_sale.tab / Rad(ilk.spot)) * Wad.from_number(1.1) wrap_eth(mcd, our_address, eth_required) collateral.approve(our_address) assert collateral.adapter.join( our_address, eth_required).transact(from_address=our_address) clipper.approve( mcd.vat.address, approval_function=hope_directly(from_address=our_address)) # Ensure we cannot take collateral below the current price (needs_redo, price, lot, tab) = clipper.status(kick) with pytest.raises(AssertionError): clipper.validate_take(kick, ink, price - Ray.from_number(1)) assert not clipper.take( kick, ink, Ray.from_number(140)).transact(from_address=our_address) # Take some collateral with max above the top price clipper.validate_take(kick, Wad.from_number(0.07), Ray.from_number(180)) assert web3.eth.defaultAccount == our_address.address assert clipper.take( kick, Wad.from_number(0.07), Ray.from_number(180)).transact(from_address=our_address) (needs_redo, price, lot, tab) = clipper.status(kick) assert not needs_redo current_sale = clipper.sales(kick) assert current_sale.lot > Wad(0) assert current_sale.top > price assert Rad(0) < current_sale.tab < kick_log.tab first_take_log = self.last_log(clipper) assert first_take_log.id == 1 assert first_take_log.max == Ray.from_number(180) assert first_take_log.price == price assert first_take_log.lot == current_sale.lot assert first_take_log.usr == deployment_address assert first_take_log.sender == our_address assert round(first_take_log.owe, 18) == round(Rad.from_number(0.07) * Rad(price), 18) # Allow the auction to expire, and then resurrect it # TODO: If abaci contract is ever wrapped, read tau from it time_travel_by(web3, 24) (needs_redo, price, lot, tab) = clipper.status(kick) assert needs_redo assert len(clipper.active_auctions()) == clipper.active_count() assert clipper.redo(kick, our_address).transact() (needs_redo, price, lot, tab) = clipper.status(kick) assert not needs_redo current_sale = clipper.sales(kick) assert current_sale.lot > Wad(0) redo_log = self.last_log(clipper) assert isinstance(redo_log, Clipper.RedoLog) assert redo_log.id == kick assert redo_log.top == current_sale.top assert redo_log.tab == current_sale.tab assert redo_log.lot == current_sale.lot assert redo_log.usr == deployment_address assert redo_log.kpr == our_address coin = Rad(clipper.tip() + (current_sale.tab * clipper.chip())) assert round(float(redo_log.coin), 18) == round(float(coin), 18) # Sleep until price has gone down enough to bid with remaining Dai dai = mcd.vat.dai(our_address) last_price = price print( f"Bid cost={float(price * Ray(current_sale.lot))}, Dai balance={float(dai)}" ) while price * Ray(current_sale.lot) > Ray(dai): print( f"Bid cost {price * Ray(current_sale.lot)} exceeds Dai balance {dai}" ) time_travel_by(web3, 2) (needs_redo, price, lot, tab) = clipper.status(kick) assert price < last_price assert not needs_redo last_price = price clipper.validate_take(kick, current_sale.lot, price) assert clipper.take(kick, current_sale.lot, price).transact(from_address=our_address) current_sale = clipper.sales(kick) assert current_sale.lot == Wad(0) assert current_sale.tab == Rad(0) assert clipper.active_count() == 0 assert len(clipper.active_auctions()) == 0 # Ensure we can retrieve our collateral collateral_before = collateral.gem.balance_of(our_address) assert collateral.adapter.exit(our_address, ink).transact(from_address=our_address) collateral_after = collateral.gem.balance_of(our_address) assert collateral_before < collateral_after # Cleanup set_collateral_price(mcd, collateral, Wad.from_number(230)) cleanup_urn(mcd, collateral, our_address)
def test_scenario(self, web3, mcd, collateral, flipper, our_address, other_address, deployment_address): # Create a vault kicks_before = flipper.kicks() ilk = collateral.ilk ink = Wad.from_number(0.5) wrap_eth(mcd, deployment_address, ink) collateral.approve(deployment_address) assert collateral.adapter.join( deployment_address, ink).transact(from_address=deployment_address) frob(mcd, collateral, deployment_address, dink=ink, dart=Wad(0)) dart = max_dart(mcd, collateral, deployment_address) - Wad(1) frob(mcd, collateral, deployment_address, dink=Wad(0), dart=dart) # Mint and withdraw all the Dai mcd.approve_dai(deployment_address) assert mcd.dai_adapter.exit( deployment_address, dart).transact(from_address=deployment_address) assert mcd.dai.balance_of(deployment_address) == dart # Undercollateralize the vault to_price = Wad(Web3.toInt(collateral.pip.read())) / Wad.from_number(2) set_collateral_price(mcd, collateral, to_price) urn = mcd.vat.urn(collateral.ilk, deployment_address) ilk = mcd.vat.ilk(ilk.name) assert ilk.rate is not None assert ilk.spot is not None safe = Ray(urn.art) * mcd.vat.ilk(ilk.name).rate <= Ray( urn.ink) * ilk.spot assert not safe assert len(flipper.active_auctions()) == 0 litter_before = mcd.cat.litter() # Bite the vault, which moves debt to the vow and kicks the flipper urn = mcd.vat.urn(collateral.ilk, deployment_address) assert urn.ink > Wad(0) art = min(urn.art, Wad(mcd.cat.dunk(ilk))) # Wad tab = art * ilk.rate # Wad assert tab == dart assert mcd.cat.can_bite(ilk, urn) assert mcd.cat.bite(ilk, urn).transact() kick = flipper.kicks() assert kick == kicks_before + 1 urn = mcd.vat.urn(collateral.ilk, deployment_address) # Check vat, vow, and cat assert urn.ink == Wad(0) assert urn.art == dart - art assert mcd.vat.vice() > Rad(0) assert mcd.vow.sin() == Rad(tab) bites = mcd.cat.past_bites(1) assert len(bites) == 1 last_bite = bites[0] assert last_bite.tab > Rad(0) assert last_bite.id == 1 litter_after = mcd.cat.litter() assert litter_before < litter_after # Check the flipper current_bid = flipper.bids(kick) assert isinstance(current_bid, Flipper.Bid) assert current_bid.lot > Wad(0) assert current_bid.tab > Rad(0) assert current_bid.bid == Rad(0) # Cat doesn't incorporate the liquidation penalty (chop), but the kicker includes it. # Awaiting word from @dc why this is so. #assert last_bite.tab == current_bid.tab log = self.last_log(flipper) assert isinstance(log, Flipper.KickLog) assert log.id == kick assert log.lot == current_bid.lot assert log.bid == current_bid.bid assert log.tab == current_bid.tab assert log.usr == deployment_address assert log.gal == mcd.vow.address # Allow the auction to expire, and then resurrect it time_travel_by(web3, flipper.tau() + 1) assert flipper.tick(kick).transact() # Wrap some eth and handle approvals before bidding eth_required = Wad( current_bid.tab / Rad(ilk.spot)) * Wad.from_number(1.13) wrap_eth(mcd, other_address, eth_required) collateral.approve(other_address) assert collateral.adapter.join( other_address, eth_required).transact(from_address=other_address) wrap_eth(mcd, our_address, eth_required) collateral.approve(our_address) assert collateral.adapter.join( our_address, eth_required).transact(from_address=our_address) # Test the _tend_ phase of the auction flipper.approve( mcd.vat.address, approval_function=hope_directly(from_address=other_address)) # Add Wad(1) to counter precision error converting tab from Rad to Wad frob(mcd, collateral, other_address, dink=eth_required, dart=Wad(current_bid.tab) + Wad(1)) urn = mcd.vat.urn(collateral.ilk, other_address) assert Rad(urn.art) >= current_bid.tab # Bid the tab to instantly transition to dent stage TestFlipper.tend(flipper, kick, other_address, current_bid.lot, current_bid.tab) current_bid = flipper.bids(kick) assert current_bid.guy == other_address assert current_bid.bid == current_bid.tab assert len(flipper.active_auctions()) == 1 check_active_auctions(flipper) log = self.last_log(flipper) assert isinstance(log, Flipper.TendLog) assert log.guy == current_bid.guy assert log.id == current_bid.id assert log.lot == current_bid.lot assert log.bid == current_bid.bid # Test the _dent_ phase of the auction flipper.approve( mcd.vat.address, approval_function=hope_directly(from_address=our_address)) frob(mcd, collateral, our_address, dink=eth_required, dart=Wad(current_bid.tab) + Wad(1)) lot = current_bid.lot - Wad.from_number(0.3) assert flipper.beg() * lot <= current_bid.lot TestFlipper.dent(flipper, kick, our_address, lot, current_bid.tab) current_bid = flipper.bids(kick) assert current_bid.guy == our_address assert current_bid.bid == current_bid.tab assert current_bid.lot == lot log = self.last_log(flipper) assert isinstance(log, Flipper.DentLog) assert log.guy == current_bid.guy assert log.id == current_bid.id assert log.lot == current_bid.lot assert log.bid == current_bid.bid # Exercise _deal_ after bid has expired time_travel_by(web3, flipper.ttl() + 1) now = datetime.now().timestamp() assert 0 < current_bid.tic < now or current_bid.end < now assert flipper.deal(kick).transact(from_address=our_address) assert len(flipper.active_auctions()) == 0 log = self.last_log(flipper) assert isinstance(log, Flipper.DealLog) assert log.usr == our_address # Grab our collateral collateral_before = collateral.gem.balance_of(our_address) assert collateral.adapter.exit( our_address, current_bid.lot).transact(from_address=our_address) collateral_after = collateral.gem.balance_of(our_address) assert collateral_before < collateral_after # Cleanup set_collateral_price(mcd, collateral, Wad.from_number(230)) cleanup_urn(mcd, collateral, other_address)
def test_empty_flog(self, web3, d: DssDeployment): time_travel_by(web3, d.vow.wait() + 10) assert d.vow.flog(0).transact()