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			2753 lines
		
	
	
		
			93 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			2753 lines
		
	
	
		
			93 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
| import hre from "hardhat";
 | |
| import { expect } from "chai";
 | |
| 
 | |
| // Instadapp deployment and testing helpers
 | |
| import { buildDSAv2 } from "../../../scripts/tests/buildDSAv2";
 | |
| import { encodeSpells } from "../../../scripts/tests/encodeSpells";
 | |
| 
 | |
| // Liquity smart contracts
 | |
| import contracts from "./liquity.contracts";
 | |
| 
 | |
| // Liquity helpers
 | |
| import helpers from "./liquity.helpers";
 | |
| 
 | |
| describe("Liquity", () => {
 | |
|   const { waffle, ethers } = hre;
 | |
|   const { provider } = waffle;
 | |
|   let userWallet: any;
 | |
|   // Waffle test account 0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266 (holds 1000 ETH)
 | |
|   let dsaWallet0: any;
 | |
|   let liquity: any;
 | |
| 
 | |
|   before(async () => {
 | |
|     await hre.network.provider.request({
 | |
|       method: "hardhat_reset",
 | |
|       params: [
 | |
|         {
 | |
|           forking: {
 | |
|             // @ts-ignore
 | |
|             jsonRpcUrl: hre.config.networks.hardhat.forking.url,
 | |
|             blockNumber: 13300000,
 | |
|           },
 | |
|         },
 | |
|       ],
 | |
|     });
 | |
|     liquity = await helpers.deployAndConnect(contracts, true);
 | |
|     expect(liquity.troveManager.address).to.exist;
 | |
|     expect(liquity.borrowerOperations.address).to.exist;
 | |
|     expect(liquity.stabilityPool.address).to.exist;
 | |
|     expect(liquity.lusdToken.address).to.exist;
 | |
|     expect(liquity.lqtyToken.address).to.exist;
 | |
|     expect(liquity.activePool.address).to.exist;
 | |
|     expect(liquity.priceFeed.address).to.exist;
 | |
|     expect(liquity.hintHelpers.address).to.exist;
 | |
|     expect(liquity.sortedTroves.address).to.exist;
 | |
|     expect(liquity.staking.address).to.exist;
 | |
|   });
 | |
| 
 | |
|   beforeEach(async () => {
 | |
|     userWallet = provider.getWallets()[0];
 | |
|     // Build a new DSA before each test so we start each test from the same default state
 | |
|     dsaWallet0 = await buildDSAv2(userWallet.address);
 | |
|     expect(dsaWallet0.address).to.exist;
 | |
|   });
 | |
| 
 | |
|   describe("Main (Connector)", () => {
 | |
|     describe("Trove", () => {
 | |
|       describe("open()", () => {
 | |
|         it("opens a Trove", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5"); // 5 ETH
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18); // 2000 LUSD
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const originalUserBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const originalDsaBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const openTroveSpell = [
 | |
|             {
 | |
|               connector: helpers.LIQUITY_CONNECTOR,
 | |
|               method: "open",
 | |
|               args: [
 | |
|                 depositAmount,
 | |
|                 maxFeePercentage,
 | |
|                 borrowAmount,
 | |
|                 upperHint,
 | |
|                 lowerHint,
 | |
|                 [0, 0],
 | |
|                 [0, 0],
 | |
|               ],
 | |
|             },
 | |
|           ];
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(openTroveSpell), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|             });
 | |
| 
 | |
|           const userBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const dsaEthBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const dsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(userBalance).lt(
 | |
|             originalUserBalance.sub(depositAmount),
 | |
|             "User's Ether balance should decrease"
 | |
|           );
 | |
| 
 | |
|           expect(dsaEthBalance).to.eq(
 | |
|             originalDsaBalance,
 | |
|             "User's DSA account Ether should not change after borrowing"
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             dsaLusdBalance,
 | |
|             "DSA account should now hold the amount the user borrowed"
 | |
|           ).to.eq(borrowAmount);
 | |
| 
 | |
|           expect(troveDebt).to.gt(
 | |
|             borrowAmount,
 | |
|             "Trove debt should equal the borrowed amount plus fee"
 | |
|           );
 | |
| 
 | |
|           expect(troveCollateral).to.eq(
 | |
|             depositAmount,
 | |
|             "Trove collateral should equal the deposited amount"
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("opens a Trove using ETH collected from a previous spell", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5"); // 5 ETH
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18); // 2000 LUSD
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const originalUserBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const originalDsaBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const depositId = 1; // Choose an ID to store and retrieve the deposited ETH
 | |
| 
 | |
|           const depositEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [helpers.ETH, depositAmount, 0, depositId],
 | |
|           };
 | |
| 
 | |
|           const openTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "open",
 | |
|             args: [
 | |
|               0, // When pulling ETH from a previous spell it doesn't matter what deposit value we put in this param
 | |
|               maxFeePercentage,
 | |
|               borrowAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [depositId, 0],
 | |
|               [0, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const spells = [depositEthSpell, openTroveSpell];
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|             });
 | |
| 
 | |
|           const userBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const dsaEthBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const dsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(userBalance).lt(
 | |
|             originalUserBalance.sub(depositAmount),
 | |
|             "User's Ether balance should decrease by the amount they deposited"
 | |
|           );
 | |
| 
 | |
|           expect(dsaEthBalance).to.eq(
 | |
|             originalDsaBalance,
 | |
|             "DSA balance should not change"
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             dsaLusdBalance,
 | |
|             "DSA account should now hold the amount the user borrowed"
 | |
|           ).to.eq(borrowAmount);
 | |
| 
 | |
|           expect(troveDebt).to.gt(
 | |
|             borrowAmount,
 | |
|             "Trove debt should equal the borrowed amount plus fee"
 | |
|           );
 | |
| 
 | |
|           expect(troveCollateral).to.eq(
 | |
|             depositAmount,
 | |
|             "Trove collateral should equal the deposited amount"
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("opens a Trove and stores the debt for other spells to use", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5"); // 5 ETH
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18); // 2000 LUSD
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const originalUserBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const originalDsaBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const borrowId = 1;
 | |
| 
 | |
|           const openTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "open",
 | |
|             args: [
 | |
|               depositAmount,
 | |
|               maxFeePercentage,
 | |
|               borrowAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [0, 0],
 | |
|               [borrowId, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const withdrawLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               contracts.LUSD_TOKEN_ADDRESS,
 | |
|               0, // Amount comes from the previous spell's setId
 | |
|               dsaWallet0.address,
 | |
|               borrowId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const spells = [openTroveSpell, withdrawLusdSpell];
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|             });
 | |
| 
 | |
|           const userBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const dsaEthBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const dsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(userBalance).lt(
 | |
|             originalUserBalance.sub(depositAmount),
 | |
|             "User's Ether balance should decrease by the amount they deposited"
 | |
|           );
 | |
| 
 | |
|           expect(dsaEthBalance).to.eq(
 | |
|             originalDsaBalance,
 | |
|             "User's DSA account Ether should not change after borrowing"
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             dsaLusdBalance,
 | |
|             "DSA account should now hold the amount the user borrowed"
 | |
|           ).to.eq(borrowAmount);
 | |
| 
 | |
|           expect(troveDebt).to.gt(
 | |
|             borrowAmount,
 | |
|             "Trove debt should equal the borrowed amount plus fee"
 | |
|           );
 | |
| 
 | |
|           expect(troveCollateral).to.eq(
 | |
|             depositAmount,
 | |
|             "Trove collateral should equal the deposited amount"
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18);
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18);
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
| 
 | |
|           const openTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "open",
 | |
|             args: [
 | |
|               depositAmount,
 | |
|               maxFeePercentage,
 | |
|               borrowAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [0, 0],
 | |
|               [0, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const openTx = await dsaWallet0.cast(
 | |
|             ...encodeSpells([openTroveSpell]),
 | |
|             userWallet.address,
 | |
|             {
 | |
|               value: depositAmount,
 | |
|             }
 | |
|           );
 | |
|           const receipt = await openTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogOpen(address,uint256,uint256,uint256,uint256[],uint256[])"
 | |
|           );
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             [
 | |
|               "address",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256[]",
 | |
|               "uint256[]",
 | |
|             ],
 | |
|             [
 | |
|               dsaWallet0.address,
 | |
|               maxFeePercentage,
 | |
|               depositAmount,
 | |
|               borrowAmount,
 | |
|               [0, 0],
 | |
|               [0, 0],
 | |
|             ]
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("close()", () => {
 | |
|         it("closes a Trove", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18);
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Send DSA account enough LUSD (from Stability Pool) to close their Trove
 | |
|           const extraLusdRequiredToCloseTrove = troveDebtBefore.sub(
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             extraLusdRequiredToCloseTrove,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const originalDsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             originalDsaLusdBalance,
 | |
|             "DSA account should now hold the LUSD amount required to pay off the Trove debt"
 | |
|           ).to.eq(troveDebtBefore);
 | |
| 
 | |
|           const closeTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "close",
 | |
|             args: [0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([closeTroveSpell]), userWallet.address);
 | |
| 
 | |
|           const dsaEthBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const dsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(troveDebt, "Trove debt should equal 0 after close").to.eq(0);
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             "Trove collateral should equal 0 after close"
 | |
|           ).to.eq(0);
 | |
| 
 | |
|           expect(
 | |
|             dsaEthBalance,
 | |
|             "DSA account should now hold the Trove's ETH collateral"
 | |
|           ).to.eq(troveCollateralBefore);
 | |
| 
 | |
|           expect(
 | |
|             dsaLusdBalance,
 | |
|             "DSA account should now hold the gas compensation amount of LUSD as it paid off the Trove debt"
 | |
|           ).to.eq(helpers.LUSD_GAS_COMPENSATION);
 | |
|         });
 | |
| 
 | |
|         it("closes a Trove using LUSD obtained from a previous spell", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Send user enough LUSD to repay the loan, we'll use a deposit and withdraw spell to obtain it
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             troveDebtBefore,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           // Allow DSA to spend user's LUSD
 | |
|           await liquity.lusdToken
 | |
|             .connect(userWallet)
 | |
|             .approve(dsaWallet0.address, troveDebtBefore);
 | |
| 
 | |
|           // Simulate a spell which would have pulled LUSD from somewhere (e.g. Uniswap) into InstaMemory
 | |
|           // In this case we're simply running a deposit spell from the user's EOA
 | |
|           const depositLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [contracts.LUSD_TOKEN_ADDRESS, troveDebtBefore, 0, 0],
 | |
|           };
 | |
| 
 | |
|           const closeTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "close",
 | |
|             args: [0],
 | |
|           };
 | |
|           const spells = [depositLusdSpell, closeTroveSpell];
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const dsaEthBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(troveDebt, "Trove debt should equal 0 after close").to.eq(0);
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             "Trove collateral should equal 0 after close"
 | |
|           ).to.eq(0);
 | |
| 
 | |
|           expect(
 | |
|             dsaEthBalance,
 | |
|             "DSA account should now hold the Trove's ETH collateral"
 | |
|           ).to.eq(troveCollateralBefore);
 | |
|         });
 | |
| 
 | |
|         it("closes a Trove and stores the released collateral for other spells to use", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18);
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Send DSA account enough LUSD (from Stability Pool) to close their Trove
 | |
|           const extraLusdRequiredToCloseTrove = troveDebtBefore.sub(
 | |
|             borrowAmount
 | |
|           );
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             extraLusdRequiredToCloseTrove,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const originalDsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             originalDsaLusdBalance,
 | |
|             "DSA account should now hold the LUSD amount required to pay off the Trove debt"
 | |
|           ).to.eq(troveDebtBefore);
 | |
| 
 | |
|           const collateralWithdrawId = 1;
 | |
| 
 | |
|           const closeTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "close",
 | |
|             args: [collateralWithdrawId],
 | |
|           };
 | |
| 
 | |
|           const withdrawEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               helpers.ETH,
 | |
|               0, // amount comes from the previous spell's setId
 | |
|               dsaWallet0.address,
 | |
|               collateralWithdrawId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(
 | |
|               ...encodeSpells([closeTroveSpell, withdrawEthSpell]),
 | |
|               userWallet.address
 | |
|             );
 | |
| 
 | |
|           const dsaEthBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const dsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(troveDebt, "Trove debt should equal 0 after close").to.eq(0);
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             "Trove collateral should equal 0 after close"
 | |
|           ).to.eq(0);
 | |
| 
 | |
|           expect(
 | |
|             dsaEthBalance,
 | |
|             "DSA account should now hold the Trove's ETH collateral"
 | |
|           ).to.eq(troveCollateralBefore);
 | |
| 
 | |
|           expect(
 | |
|             dsaLusdBalance,
 | |
|             "DSA account should now hold the gas compensation amount of LUSD as it paid off the Trove debt"
 | |
|           ).to.eq(helpers.LUSD_GAS_COMPENSATION);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2000", 18);
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             ethers.utils.parseUnits("2500", 18),
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const closeTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "close",
 | |
|             args: [0],
 | |
|           };
 | |
| 
 | |
|           const closeTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([closeTroveSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await closeTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256"],
 | |
|             [dsaWallet0.address, 0]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq("LogClose(address,uint256)");
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("deposit()", () => {
 | |
|         it("deposits ETH into a Trove", async () => {
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const topupAmount = ethers.utils.parseEther("1");
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const depositEthSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [topupAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([depositEthSpell]), userWallet.address, {
 | |
|               value: topupAmount,
 | |
|             });
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const expectedTroveCollateral = troveCollateralBefore.add(
 | |
|             topupAmount
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have increased by ${topupAmount} ETH`
 | |
|           ).to.eq(expectedTroveCollateral);
 | |
|         });
 | |
| 
 | |
|         it("deposits using ETH gained from a previous spell", async () => {
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const topupAmount = ethers.utils.parseEther("1");
 | |
|           const depositId = 1;
 | |
|           const depositEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [helpers.ETH, topupAmount, 0, depositId],
 | |
|           };
 | |
| 
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const depositEthToTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [0, upperHint, lowerHint, depositId, 0],
 | |
|           };
 | |
|           const spells = [depositEthSpell, depositEthToTroveSpell];
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address, {
 | |
|               value: topupAmount,
 | |
|             });
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const expectedTroveCollateral = troveCollateralBefore.add(
 | |
|             topupAmount
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have increased by ${topupAmount} ETH`
 | |
|           ).to.eq(expectedTroveCollateral);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const topupAmount = ethers.utils.parseEther("1");
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const depositEthSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [topupAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           const depositTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([depositEthSpell]), userWallet.address, {
 | |
|               value: topupAmount,
 | |
|             });
 | |
| 
 | |
|           const receipt = await depositTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256"],
 | |
|             [dsaWallet0.address, topupAmount, 0, 0]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogDeposit(address,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("withdraw()", () => {
 | |
|         it("withdraws ETH from a Trove", async () => {
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const withdrawAmount = ethers.utils.parseEther("1");
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const withdrawEthSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [withdrawAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([withdrawEthSpell]), userWallet.address);
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveCollateral = troveCollateralBefore.sub(
 | |
|             withdrawAmount
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have decreased by ${withdrawAmount} ETH`
 | |
|           ).to.eq(expectedTroveCollateral);
 | |
|         });
 | |
| 
 | |
|         it("withdraws ETH from a Trove and stores the ETH for other spells to use", async () => {
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const originalUserEthBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           const withdrawAmount = ethers.utils.parseEther("1");
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const withdrawId = 1;
 | |
|           const withdrawEthFromTroveSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [withdrawAmount, upperHint, lowerHint, 0, withdrawId],
 | |
|           };
 | |
| 
 | |
|           const withdrawEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [helpers.ETH, 0, userWallet.address, withdrawId, 0],
 | |
|           };
 | |
|           const spells = [withdrawEthFromTroveSpell, withdrawEthSpell];
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveCollateral = troveCollateralBefore.sub(
 | |
|             withdrawAmount
 | |
|           );
 | |
|           const userEthBalance = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have decreased by ${withdrawAmount} ETH`
 | |
|           ).to.eq(expectedTroveCollateral);
 | |
| 
 | |
|           expect(
 | |
|             userEthBalance,
 | |
|             `User ETH balance should have increased by ${withdrawAmount} ETH`
 | |
|           ).to.lt(originalUserEthBalance.add(withdrawAmount));
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const withdrawAmount = ethers.utils.parseEther("1");
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const withdrawEthSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [withdrawAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           const withdrawTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([withdrawEthSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await withdrawTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256"],
 | |
|             [dsaWallet0.address, withdrawAmount, 0, 0]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogWithdraw(address,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("borrow()", () => {
 | |
|         it("borrows LUSD from a Trove", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const borrowAmount = ethers.utils.parseUnits("1000", 18); // 1000 LUSD
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
|           const borrowSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "borrow",
 | |
|             args: [maxFeePercentage, borrowAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           // Borrow more LUSD from the Trove
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([borrowSpell]), userWallet.address);
 | |
| 
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveDebt = troveDebtBefore.add(borrowAmount);
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt should have increased by at least ${borrowAmount} ETH`
 | |
|           ).to.gte(expectedTroveDebt);
 | |
|         });
 | |
| 
 | |
|         it("borrows LUSD from a Trove and stores the LUSD for other spells to use", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const borrowAmount = ethers.utils.parseUnits("1000", 18); // 1000 LUSD
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
|           const borrowId = 1;
 | |
|           const borrowSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "borrow",
 | |
|             args: [
 | |
|               maxFeePercentage,
 | |
|               borrowAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               0,
 | |
|               borrowId,
 | |
|             ],
 | |
|           };
 | |
|           const withdrawSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               liquity.lusdToken.address,
 | |
|               0,
 | |
|               userWallet.address,
 | |
|               borrowId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
|           const spells = [borrowSpell, withdrawSpell];
 | |
| 
 | |
|           // Borrow more LUSD from the Trove
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveDebt = troveDebtBefore.add(borrowAmount);
 | |
|           const userLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt should have increased by at least ${borrowAmount} ETH`
 | |
|           ).to.gte(expectedTroveDebt);
 | |
| 
 | |
|           expect(
 | |
|             userLusdBalance,
 | |
|             `User LUSD balance should equal the borrowed LUSD due to the second withdraw spell`
 | |
|           ).eq(borrowAmount);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const borrowAmount = ethers.utils.parseUnits("1000", 18); // 1000 LUSD
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
|           const borrowSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "borrow",
 | |
|             args: [maxFeePercentage, borrowAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           const borrowTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([borrowSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await borrowTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256"],
 | |
|             [dsaWallet0.address, borrowAmount, 0, 0]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogBorrow(address,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("repay()", () => {
 | |
|         it("repays LUSD to a Trove", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2500", 18);
 | |
| 
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           // DSA account is holding 2500 LUSD from opening a Trove, so we use some of that to repay
 | |
|           const repayAmount = ethers.utils.parseUnits("100", 18); // 100 LUSD
 | |
| 
 | |
|           const { upperHint, lowerHint } = await helpers.getTroveInsertionHints(
 | |
|             depositAmount,
 | |
|             borrowAmount,
 | |
|             liquity
 | |
|           );
 | |
|           const repaySpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "repay",
 | |
|             args: [repayAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([repaySpell]), userWallet.address);
 | |
| 
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveDebt = troveDebtBefore.sub(repayAmount);
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt should have decreased by ${repayAmount} ETH`
 | |
|           ).to.eq(expectedTroveDebt);
 | |
|         });
 | |
| 
 | |
|         it("repays LUSD to a Trove using LUSD collected from a previous spell", async () => {
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2500", 18);
 | |
| 
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const repayAmount = ethers.utils.parseUnits("100", 18); // 100 LUSD
 | |
|           const { upperHint, lowerHint } = await helpers.getTroveInsertionHints(
 | |
|             depositAmount,
 | |
|             borrowAmount,
 | |
|             liquity
 | |
|           );
 | |
| 
 | |
|           // Drain the DSA's LUSD balance so that we ensure we are repaying using LUSD from a previous spell
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             borrowAmount,
 | |
|             dsaWallet0.address,
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           // Allow DSA to spend user's LUSD
 | |
|           await liquity.lusdToken
 | |
|             .connect(userWallet)
 | |
|             .approve(dsaWallet0.address, repayAmount);
 | |
| 
 | |
|           const lusdDepositId = 1;
 | |
|           const depositSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [liquity.lusdToken.address, repayAmount, 0, lusdDepositId],
 | |
|           };
 | |
|           const borrowSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "repay",
 | |
|             args: [0, upperHint, lowerHint, lusdDepositId, 0],
 | |
|           };
 | |
| 
 | |
|           const spells = [depositSpell, borrowSpell];
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveDebt = troveDebtBefore.sub(repayAmount);
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt should have decreased by ${repayAmount} ETH`
 | |
|           ).to.eq(expectedTroveDebt);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           // Create a dummy Trove
 | |
|           const depositAmount = ethers.utils.parseEther("5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2500", 18);
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           const repayAmount = ethers.utils.parseUnits("100", 18); // 100 LUSD
 | |
|           const { upperHint, lowerHint } = await helpers.getTroveInsertionHints(
 | |
|             depositAmount,
 | |
|             borrowAmount,
 | |
|             liquity
 | |
|           );
 | |
| 
 | |
|           const borrowSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "repay",
 | |
|             args: [repayAmount, upperHint, lowerHint, 0, 0],
 | |
|           };
 | |
| 
 | |
|           const repayTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([borrowSpell]), userWallet.address, {
 | |
|               value: repayAmount,
 | |
|             });
 | |
| 
 | |
|           const receipt = await repayTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256"],
 | |
|             [dsaWallet0.address, repayAmount, 0, 0]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogRepay(address,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("adjust()", () => {
 | |
|         it("adjusts a Trove: deposit ETH and borrow LUSD", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const depositAmount = ethers.utils.parseEther("1"); // 1 ETH
 | |
|           const borrowAmount = ethers.utils.parseUnits("500", 18); // 500 LUSD
 | |
|           const withdrawAmount = 0;
 | |
|           const repayAmount = 0;
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           const adjustSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "adjust",
 | |
|             args: [
 | |
|               maxFeePercentage,
 | |
|               depositAmount,
 | |
|               withdrawAmount,
 | |
|               borrowAmount,
 | |
|               repayAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [0, 0, 0, 0],
 | |
|               [0, 0, 0, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           // Adjust Trove by depositing ETH and borrowing LUSD
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([adjustSpell]), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|               gasLimit: helpers.MAX_GAS,
 | |
|             });
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveColl = troveCollateralBefore.add(depositAmount);
 | |
|           const expectedTroveDebt = troveDebtBefore.add(borrowAmount);
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have increased by ${depositAmount} ETH`
 | |
|           ).to.eq(expectedTroveColl);
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt should have increased by at least ${borrowAmount} ETH`
 | |
|           ).to.gte(expectedTroveDebt);
 | |
|         });
 | |
| 
 | |
|         it("adjusts a Trove: withdraw ETH and repay LUSD", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const depositAmount = 0;
 | |
|           const borrowAmount = 0;
 | |
|           const withdrawAmount = ethers.utils.parseEther("1"); // 1 ETH;
 | |
|           const repayAmount = ethers.utils.parseUnits("10", 18); // 10 LUSD;
 | |
|           const { upperHint, lowerHint } = await helpers.getTroveInsertionHints(
 | |
|             troveCollateralBefore.sub(withdrawAmount),
 | |
|             troveDebtBefore.sub(repayAmount),
 | |
|             liquity
 | |
|           );
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           const adjustSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "adjust",
 | |
|             args: [
 | |
|               maxFeePercentage,
 | |
|               depositAmount,
 | |
|               withdrawAmount,
 | |
|               borrowAmount,
 | |
|               repayAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [0, 0, 0, 0],
 | |
|               [0, 0, 0, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           // Adjust Trove by withdrawing ETH and repaying LUSD
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([adjustSpell]), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|               gasLimit: helpers.MAX_GAS,
 | |
|             });
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveColl = troveCollateralBefore.sub(withdrawAmount);
 | |
|           const expectedTroveDebt = troveDebtBefore.sub(repayAmount);
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have increased by ${depositAmount} ETH`
 | |
|           ).to.eq(expectedTroveColl);
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt should have decreased by at least ${repayAmount} LUSD`
 | |
|           ).to.gte(expectedTroveDebt);
 | |
|         });
 | |
| 
 | |
|         it("adjusts a Trove: deposit ETH and repay LUSD using previous spells", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebtBefore = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const depositAmount = ethers.utils.parseEther("1"); // 1 ETH
 | |
|           const borrowAmount = 0;
 | |
|           const withdrawAmount = 0;
 | |
|           const repayAmount = ethers.utils.parseUnits("10", 18); // 10 lUSD
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           const ethDepositId = 1;
 | |
|           const lusdRepayId = 2;
 | |
| 
 | |
|           const depositEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [helpers.ETH, depositAmount, 0, ethDepositId],
 | |
|           };
 | |
| 
 | |
|           const depositLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [liquity.lusdToken.address, repayAmount, 0, lusdRepayId],
 | |
|           };
 | |
| 
 | |
|           const adjustSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "adjust",
 | |
|             args: [
 | |
|               maxFeePercentage,
 | |
|               0, // Deposit amount comes from a previous spell's storage slot
 | |
|               withdrawAmount,
 | |
|               borrowAmount,
 | |
|               0, // Repay amount comes from a previous spell's storage slot
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [ethDepositId, 0, 0, lusdRepayId],
 | |
|               [0, 0, 0, 0],
 | |
|             ],
 | |
|           };
 | |
|           const spells = [depositEthSpell, depositLusdSpell, adjustSpell];
 | |
| 
 | |
|           // Send user some LUSD so they can repay
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             repayAmount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           // Allow DSA to spend user's LUSD
 | |
|           await liquity.lusdToken
 | |
|             .connect(userWallet)
 | |
|             .approve(dsaWallet0.address, repayAmount);
 | |
| 
 | |
|           // Adjust Trove by depositing ETH and repaying LUSD
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|               gasLimit: helpers.MAX_GAS,
 | |
|             });
 | |
| 
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveDebt = await liquity.troveManager.getTroveDebt(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveColl = troveCollateralBefore.add(depositAmount);
 | |
|           const expectedTroveDebt = troveDebtBefore.sub(repayAmount);
 | |
| 
 | |
|           expect(
 | |
|             troveCollateral,
 | |
|             `Trove collateral should have increased by ${depositAmount} ETH`
 | |
|           ).to.eq(expectedTroveColl);
 | |
| 
 | |
|           expect(
 | |
|             troveDebt,
 | |
|             `Trove debt (${troveDebtBefore}) should have decreased by at least ${repayAmount} LUSD`
 | |
|           ).to.eq(expectedTroveDebt);
 | |
|         });
 | |
| 
 | |
|         it("adjusts a Trove: withdraw ETH, borrow LUSD, and store the amounts for other spells", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const userEthBalanceBefore = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const userLusdBalanceBefore = await liquity.lusdToken.balanceOf(
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           const depositAmount = 0;
 | |
|           const borrowAmount = ethers.utils.parseUnits("100", 18); // 100 LUSD
 | |
|           const withdrawAmount = ethers.utils.parseEther("1"); // 1 ETH
 | |
|           const repayAmount = 0;
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           const ethWithdrawId = 1;
 | |
|           const lusdBorrowId = 2;
 | |
| 
 | |
|           const adjustSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "adjust",
 | |
|             args: [
 | |
|               maxFeePercentage,
 | |
|               depositAmount,
 | |
|               withdrawAmount,
 | |
|               borrowAmount,
 | |
|               repayAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [0, 0, 0, 0],
 | |
|               [0, ethWithdrawId, lusdBorrowId, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const withdrawEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [helpers.ETH, 0, userWallet.address, ethWithdrawId, 0],
 | |
|           };
 | |
| 
 | |
|           const withdrawLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               liquity.lusdToken.address,
 | |
|               0,
 | |
|               userWallet.address,
 | |
|               lusdBorrowId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const spells = [adjustSpell, withdrawEthSpell, withdrawLusdSpell];
 | |
| 
 | |
|           // Adjust Trove by withdrawing ETH and borrowing LUSD
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address, {
 | |
|               gasLimit: helpers.MAX_GAS,
 | |
|             });
 | |
| 
 | |
|           const userEthBalanceAfter = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const userLusdBalanceAfter = await liquity.lusdToken.balanceOf(
 | |
|             userWallet.address
 | |
|           );
 | |
|           expect(userEthBalanceAfter).lt(
 | |
|             userEthBalanceBefore.add(withdrawAmount)
 | |
|           );
 | |
|           expect(userLusdBalanceAfter).eq(
 | |
|             userLusdBalanceBefore.add(borrowAmount)
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           const depositAmount = ethers.utils.parseEther("1"); // 1 ETH
 | |
|           const borrowAmount = ethers.utils.parseUnits("500", 18); // 500 LUSD
 | |
|           const withdrawAmount = 0;
 | |
|           const repayAmount = 0;
 | |
|           const upperHint = ethers.constants.AddressZero;
 | |
|           const lowerHint = ethers.constants.AddressZero;
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           const adjustSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "adjust",
 | |
|             args: [
 | |
|               maxFeePercentage,
 | |
|               depositAmount,
 | |
|               withdrawAmount,
 | |
|               borrowAmount,
 | |
|               repayAmount,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               [0, 0, 0, 0],
 | |
|               [0, 0, 0, 0],
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const adjustTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([adjustSpell]), userWallet.address, {
 | |
|               value: depositAmount,
 | |
|               gasLimit: helpers.MAX_GAS,
 | |
|             });
 | |
| 
 | |
|           const receipt = await adjustTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             [
 | |
|               "address",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256[]",
 | |
|               "uint256[]",
 | |
|             ],
 | |
|             [
 | |
|               dsaWallet0.address,
 | |
|               maxFeePercentage,
 | |
|               depositAmount,
 | |
|               withdrawAmount,
 | |
|               borrowAmount,
 | |
|               repayAmount,
 | |
|               [0, 0, 0, 0],
 | |
|               [0, 0, 0, 0],
 | |
|             ]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogAdjust(address,uint256,uint256,uint256,uint256,uint256,uint256[],uint256[])"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("claimCollateralFromRedemption()", () => {
 | |
|         it("claims collateral from a redeemed Trove", async () => {
 | |
|           // Create a low collateralized Trove
 | |
|           const depositAmount = ethers.utils.parseEther("1.5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2500", 18);
 | |
| 
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           // Redeem lots of LUSD to cause the Trove to become redeemed
 | |
|           const redeemAmount = ethers.utils.parseUnits("10000000", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             redeemAmount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet.address
 | |
|           );
 | |
|           const {
 | |
|             partialRedemptionHintNicr,
 | |
|             firstRedemptionHint,
 | |
|             upperHint,
 | |
|             lowerHint,
 | |
|           } = await helpers.getRedemptionHints(redeemAmount, liquity);
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           await liquity.troveManager
 | |
|             .connect(userWallet)
 | |
|             .redeemCollateral(
 | |
|               redeemAmount,
 | |
|               firstRedemptionHint,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               partialRedemptionHintNicr,
 | |
|               0,
 | |
|               maxFeePercentage,
 | |
|               {
 | |
|                 gasLimit: helpers.MAX_GAS, // permit max gas
 | |
|               }
 | |
|             );
 | |
| 
 | |
|           const remainingEthCollateral = await liquity.collSurplus.getCollateral(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Claim the remaining collateral from the redeemed Trove
 | |
|           const claimCollateralFromRedemptionSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "claimCollateralFromRedemption",
 | |
|             args: [0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(
 | |
|               ...encodeSpells([claimCollateralFromRedemptionSpell]),
 | |
|               userWallet.address
 | |
|             );
 | |
| 
 | |
|           const ethBalance = await ethers.provider.getBalance(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(ethBalance).to.eq(remainingEthCollateral);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           // Create a low collateralized Trove
 | |
|           const depositAmount = ethers.utils.parseEther("1.5");
 | |
|           const borrowAmount = ethers.utils.parseUnits("2500", 18);
 | |
| 
 | |
|           await helpers.createDsaTrove(
 | |
|             dsaWallet0,
 | |
|             userWallet,
 | |
|             liquity,
 | |
|             depositAmount,
 | |
|             borrowAmount
 | |
|           );
 | |
| 
 | |
|           // Redeem lots of LUSD to cause the Trove to become redeemed
 | |
|           const redeemAmount = ethers.utils.parseUnits("10000000", 18);
 | |
|           const setId = 0;
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             redeemAmount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet.address
 | |
|           );
 | |
|           const {
 | |
|             partialRedemptionHintNicr,
 | |
|             firstRedemptionHint,
 | |
|             upperHint,
 | |
|             lowerHint,
 | |
|           } = await helpers.getRedemptionHints(redeemAmount, liquity);
 | |
|           const maxFeePercentage = ethers.utils.parseUnits("0.5", 18); // 0.5% max fee
 | |
| 
 | |
|           await liquity.troveManager
 | |
|             .connect(userWallet)
 | |
|             .redeemCollateral(
 | |
|               redeemAmount,
 | |
|               firstRedemptionHint,
 | |
|               upperHint,
 | |
|               lowerHint,
 | |
|               partialRedemptionHintNicr,
 | |
|               0,
 | |
|               maxFeePercentage,
 | |
|               {
 | |
|                 gasLimit: helpers.MAX_GAS, // permit max gas
 | |
|               }
 | |
|             );
 | |
|           const claimAmount = await liquity.collSurplus.getCollateral(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const claimCollateralFromRedemptionSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "claimCollateralFromRedemption",
 | |
|             args: [setId],
 | |
|           };
 | |
| 
 | |
|           const claimTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(
 | |
|               ...encodeSpells([claimCollateralFromRedemptionSpell]),
 | |
|               userWallet.address
 | |
|             );
 | |
| 
 | |
|           const receipt = await claimTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256"],
 | |
|             [dsaWallet0.address, claimAmount, setId]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogClaimCollateralFromRedemption(address,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
|     });
 | |
| 
 | |
|     describe("Stability Pool", () => {
 | |
|       describe("stabilityDeposit()", () => {
 | |
|         it("deposits into Stability Pool", async () => {
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [amount, frontendTag, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           const depositedAmount = await liquity.stabilityPool.getCompoundedLUSDDeposit(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           expect(depositedAmount).to.eq(amount);
 | |
|         });
 | |
| 
 | |
|         it("deposits into Stability Pool using LUSD collected from a previous spell", async () => {
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet.address
 | |
|           );
 | |
|           const lusdDepositId = 1;
 | |
| 
 | |
|           const depositLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [liquity.lusdToken.address, amount, 0, lusdDepositId],
 | |
|           };
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [0, frontendTag, lusdDepositId, 0, 0, 0],
 | |
|           };
 | |
|           const spells = [depositLusdSpell, stabilityDepositSpell];
 | |
| 
 | |
|           // Allow DSA to spend user's LUSD
 | |
|           await liquity.lusdToken
 | |
|             .connect(userWallet)
 | |
|             .approve(dsaWallet0.address, amount);
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const depositedAmount = await liquity.stabilityPool.getCompoundedLUSDDeposit(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           expect(depositedAmount).to.eq(amount);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const halfAmount = amount.div(2);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
|           const getDepositId = 0;
 | |
|           const setDepositId = 0;
 | |
|           const setEthGainId = 0;
 | |
|           const setLqtyGainId = 0;
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [
 | |
|               halfAmount,
 | |
|               frontendTag,
 | |
|               getDepositId,
 | |
|               setDepositId,
 | |
|               setEthGainId,
 | |
|               setLqtyGainId,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           // Create a Stability deposit for this DSA
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           // Liquidate a Trove to cause an ETH gain
 | |
|           await liquity.troveManager.connect(userWallet).liquidateTroves(1, {
 | |
|             gasLimit: helpers.MAX_GAS,
 | |
|           });
 | |
| 
 | |
|           // Fast forward in time so we have an LQTY gain
 | |
|           await provider.send("evm_increaseTime", [600]);
 | |
|           await provider.send("evm_mine", []);
 | |
| 
 | |
|           // Create a Stability Pool deposit with a differen DSA so that LQTY gains can be calculated
 | |
|           // See: https://github.com/liquity/dev/#lqty-reward-events-and-payouts
 | |
|           const tempDsa = await buildDSAv2(userWallet.address);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             tempDsa.address
 | |
|           );
 | |
|           await tempDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           const ethGain = await liquity.stabilityPool.getDepositorETHGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const lqtyGain = await liquity.stabilityPool.getDepositorLQTYGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Top up the user's deposit so that we can track their ETH and LQTY gain
 | |
|           const depositAgainTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await depositAgainTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             [
 | |
|               "address",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "address",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|             ],
 | |
|             [
 | |
|               dsaWallet0.address,
 | |
|               halfAmount,
 | |
|               ethGain,
 | |
|               lqtyGain,
 | |
|               frontendTag,
 | |
|               getDepositId,
 | |
|               setDepositId,
 | |
|               setEthGainId,
 | |
|               setLqtyGainId,
 | |
|             ]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogStabilityDeposit(address,uint256,uint256,uint256,address,uint256,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("stabilityWithdraw()", () => {
 | |
|         it("withdraws from Stability Pool", async () => {
 | |
|           // Start this test from scratch since we need to remove any liquidatable Troves withdrawing from Stability Pool
 | |
|           [liquity, dsaWallet0] = await helpers.resetInitialState(
 | |
|             userWallet.address,
 | |
|             contracts
 | |
|           );
 | |
| 
 | |
|           // The current block number has liquidatable Troves.
 | |
|           // Remove them otherwise Stability Pool withdrawals are disabled
 | |
|           await liquity.troveManager.connect(userWallet).liquidateTroves(90, {
 | |
|             gasLimit: helpers.MAX_GAS,
 | |
|           });
 | |
| 
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [amount, frontendTag, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           // Withdraw half of the deposit
 | |
|           const stabilityWithdrawSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityWithdraw",
 | |
|             args: [amount.div(2), 0, 0, 0, 0],
 | |
|           };
 | |
|           const spells = [stabilityDepositSpell, stabilityWithdrawSpell];
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const depositedAmount = await liquity.stabilityPool.getCompoundedLUSDDeposit(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const dsaLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(depositedAmount).to.eq(amount.div(2));
 | |
|           expect(dsaLusdBalance).to.eq(amount.div(2));
 | |
|         });
 | |
| 
 | |
|         it("withdraws from Stability Pool and stores the LUSD for other spells", async () => {
 | |
|           // Start this test from scratch since we need to remove any liquidatable Troves withdrawing from Stability Pool
 | |
|           [liquity, dsaWallet0] = await helpers.resetInitialState(
 | |
|             userWallet.address,
 | |
|             contracts
 | |
|           );
 | |
| 
 | |
|           // The current block number has liquidatable Troves.
 | |
|           // Remove them otherwise Stability Pool withdrawals are disabled
 | |
|           await liquity.troveManager.connect(userWallet).liquidateTroves(90, {
 | |
|             gasLimit: helpers.MAX_GAS,
 | |
|           });
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
|           const withdrawId = 1;
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [amount, frontendTag, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           // Withdraw half of the deposit
 | |
|           const stabilityWithdrawSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityWithdraw",
 | |
|             args: [amount.div(2), 0, 0, 0, withdrawId],
 | |
|           };
 | |
| 
 | |
|           const withdrawLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               liquity.lusdToken.address,
 | |
|               0,
 | |
|               userWallet.address,
 | |
|               withdrawId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const spells = [
 | |
|             stabilityDepositSpell,
 | |
|             stabilityWithdrawSpell,
 | |
|             withdrawLusdSpell,
 | |
|           ];
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const depositedAmount = await liquity.stabilityPool.getCompoundedLUSDDeposit(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const walletLusdBalance = await liquity.lusdToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           expect(depositedAmount).to.eq(amount.div(2));
 | |
|           expect(walletLusdBalance).to.eq(amount.div(2));
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           // Start this test from scratch since we need to remove any liquidatable Troves withdrawing from Stability Pool
 | |
|           [liquity, dsaWallet0] = await helpers.resetInitialState(
 | |
|             userWallet.address,
 | |
|             contracts
 | |
|           );
 | |
| 
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
| 
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [amount, frontendTag, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           // Withdraw half of the deposit
 | |
|           const withdrawAmount = amount.div(2);
 | |
|           const getWithdrawId = 0;
 | |
|           const setWithdrawId = 0;
 | |
|           const setEthGainId = 0;
 | |
|           const setLqtyGainId = 0;
 | |
| 
 | |
|           // Create a Stability Pool deposit
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           // The current block number has liquidatable Troves.
 | |
|           // Remove them otherwise Stability Pool withdrawals are disabled
 | |
|           await liquity.troveManager.connect(userWallet).liquidateTroves(90, {
 | |
|             gasLimit: helpers.MAX_GAS,
 | |
|           });
 | |
| 
 | |
|           // Fast forward in time so we have an LQTY gain
 | |
|           await provider.send("evm_increaseTime", [600]);
 | |
|           await provider.send("evm_mine", []);
 | |
| 
 | |
|           // Create another Stability Pool deposit so that LQTY gains are realized
 | |
|           // See: https://github.com/liquity/dev/#lqty-reward-events-and-payouts
 | |
|           const tempDsa = await buildDSAv2(userWallet.address);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lusdToken,
 | |
|             amount,
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             tempDsa.address
 | |
|           );
 | |
|           await tempDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           const ethGain = await liquity.stabilityPool.getDepositorETHGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const lqtyGain = await liquity.stabilityPool.getDepositorLQTYGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stabilityWithdrawSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityWithdraw",
 | |
|             args: [
 | |
|               withdrawAmount,
 | |
|               getWithdrawId,
 | |
|               setWithdrawId,
 | |
|               setEthGainId,
 | |
|               setLqtyGainId,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const withdrawTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(
 | |
|               ...encodeSpells([stabilityWithdrawSpell]),
 | |
|               userWallet.address
 | |
|             );
 | |
| 
 | |
|           const receipt = await withdrawTx.wait();
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             [
 | |
|               "address",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|               "uint256",
 | |
|             ],
 | |
|             [
 | |
|               dsaWallet0.address,
 | |
|               withdrawAmount,
 | |
|               ethGain,
 | |
|               lqtyGain,
 | |
|               getWithdrawId,
 | |
|               setWithdrawId,
 | |
|               setEthGainId,
 | |
|               setLqtyGainId,
 | |
|             ]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogStabilityWithdraw(address,uint256,uint256,uint256,uint256,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("stabilityMoveEthGainToTrove()", () => {
 | |
|         beforeEach(async () => {
 | |
|           // Start these test from fresh so that we definitely have a liquidatable Trove within this block
 | |
|           [liquity, dsaWallet0] = await helpers.resetInitialState(
 | |
|             userWallet.address,
 | |
|             contracts
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("moves ETH gain from Stability Pool to Trove", async () => {
 | |
|           // Create a DSA owned Trove to capture ETH liquidation gains
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
|           const troveCollateralBefore = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Create a Stability Deposit using the Trove's borrowed LUSD
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [amount, frontendTag, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           // Liquidate a Trove to create an ETH gain for the new DSA Trove
 | |
|           await liquity.troveManager
 | |
|             .connect(userWallet)
 | |
|             .liquidate(helpers.LIQUIDATABLE_TROVE_ADDRESS, {
 | |
|               gasLimit: helpers.MAX_GAS, // permit max gas
 | |
|             });
 | |
| 
 | |
|           const ethGainFromLiquidation = await liquity.stabilityPool.getDepositorETHGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Move ETH gain to Trove
 | |
|           const moveEthGainSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityMoveEthGainToTrove",
 | |
|             args: [ethers.constants.AddressZero, ethers.constants.AddressZero],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([moveEthGainSpell]), userWallet.address);
 | |
| 
 | |
|           const ethGainAfterMove = await liquity.stabilityPool.getDepositorETHGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const troveCollateral = await liquity.troveManager.getTroveColl(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const expectedTroveCollateral = troveCollateralBefore.add(
 | |
|             ethGainFromLiquidation
 | |
|           );
 | |
|           expect(ethGainAfterMove).to.eq(0);
 | |
|           expect(troveCollateral).to.eq(expectedTroveCollateral);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           // Create a DSA owned Trove to capture ETH liquidation gains
 | |
|           // Create a dummy Trove
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           // Create a Stability Deposit using the Trove's borrowed LUSD
 | |
|           const amount = ethers.utils.parseUnits("100", 18);
 | |
|           const frontendTag = ethers.constants.AddressZero;
 | |
|           const stabilityDepositSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityDeposit",
 | |
|             args: [amount, frontendTag, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stabilityDepositSpell]), userWallet.address);
 | |
| 
 | |
|           // Liquidate a Trove to create an ETH gain for the new DSA Trove
 | |
|           await liquity.troveManager
 | |
|             .connect(userWallet)
 | |
|             .liquidate(helpers.LIQUIDATABLE_TROVE_ADDRESS, {
 | |
|               gasLimit: helpers.MAX_GAS, // permit max gas
 | |
|             });
 | |
| 
 | |
|           const ethGainFromLiquidation = await liquity.stabilityPool.getDepositorETHGain(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           // Move ETH gain to Trove
 | |
|           const moveEthGainSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stabilityMoveEthGainToTrove",
 | |
|             args: [ethers.constants.AddressZero, ethers.constants.AddressZero],
 | |
|           };
 | |
| 
 | |
|           const moveEthGainTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([moveEthGainSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await moveEthGainTx.wait();
 | |
| 
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256"],
 | |
|             [dsaWallet0.address, ethGainFromLiquidation]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogStabilityMoveEthGainToTrove(address,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
|     });
 | |
| 
 | |
|     describe("Staking", () => {
 | |
|       describe("stake()", () => {
 | |
|         it("stakes LQTY", async () => {
 | |
|           const totalStakingBalanceBefore = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
| 
 | |
|           const amount = ethers.utils.parseUnits("1", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           const lqtyBalance = await liquity.lqtyToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           expect(lqtyBalance).to.eq(0);
 | |
| 
 | |
|           const totalStakingBalance = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
|           expect(totalStakingBalance).to.eq(
 | |
|             totalStakingBalanceBefore.add(amount)
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("stakes LQTY using LQTY obtained from a previous spell", async () => {
 | |
|           const totalStakingBalanceBefore = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
| 
 | |
|           const amount = ethers.utils.parseUnits("1", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           const lqtyDepositId = 1;
 | |
|           const depositSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "deposit",
 | |
|             args: [liquity.lqtyToken.address, amount, 0, lqtyDepositId],
 | |
|           };
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [0, lqtyDepositId, 0, 0, 0],
 | |
|           };
 | |
|           const spells = [depositSpell, stakeSpell];
 | |
| 
 | |
|           // Allow DSA to spend user's LQTY
 | |
|           await liquity.lqtyToken
 | |
|             .connect(userWallet)
 | |
|             .approve(dsaWallet0.address, amount);
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const lqtyBalance = await liquity.lqtyToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           expect(lqtyBalance).to.eq(0);
 | |
| 
 | |
|           const totalStakingBalance = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
|           expect(totalStakingBalance).to.eq(
 | |
|             totalStakingBalanceBefore.add(amount)
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           const amount = ethers.utils.parseUnits("1", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const getStakeId = 0;
 | |
|           const setStakeId = 0;
 | |
|           const setEthGainId = 0;
 | |
|           const setLusdGainId = 0;
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, getStakeId, setStakeId, setEthGainId, setLusdGainId],
 | |
|           };
 | |
| 
 | |
|           const stakeTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await stakeTx.wait();
 | |
| 
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256", "uint256", "uint256"],
 | |
|             [
 | |
|               dsaWallet0.address,
 | |
|               amount,
 | |
|               getStakeId,
 | |
|               setStakeId,
 | |
|               setEthGainId,
 | |
|               setLusdGainId,
 | |
|             ]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogStake(address,uint256,uint256,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("unstake()", () => {
 | |
|         it("unstakes LQTY", async () => {
 | |
|           const amount = ethers.utils.parseUnits("1", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           const totalStakingBalanceBefore = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
|           const unstakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "unstake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([unstakeSpell]), userWallet.address);
 | |
| 
 | |
|           const lqtyBalance = await liquity.lqtyToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           expect(lqtyBalance).to.eq(amount);
 | |
| 
 | |
|           const totalStakingBalance = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
|           expect(totalStakingBalance).to.eq(
 | |
|             totalStakingBalanceBefore.sub(amount)
 | |
|           );
 | |
|         });
 | |
| 
 | |
|         it("unstakes LQTY and stores the LQTY for other spells", async () => {
 | |
|           const amount = ethers.utils.parseUnits("1", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           const totalStakingBalanceBefore = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
|           const withdrawId = 1;
 | |
|           const unstakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "unstake",
 | |
|             args: [amount, 0, withdrawId, 0, 0],
 | |
|           };
 | |
| 
 | |
|           const withdrawLqtySpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               liquity.lqtyToken.address,
 | |
|               0,
 | |
|               userWallet.address,
 | |
|               withdrawId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
|           const spells = [unstakeSpell, withdrawLqtySpell];
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address);
 | |
| 
 | |
|           const lqtyBalance = await liquity.lqtyToken.balanceOf(
 | |
|             dsaWallet0.address
 | |
|           );
 | |
|           const totalStakingBalance = await liquity.lqtyToken.balanceOf(
 | |
|             contracts.STAKING_ADDRESS
 | |
|           );
 | |
|           const userLqtyBalance = await liquity.lqtyToken.balanceOf(
 | |
|             userWallet.address
 | |
|           );
 | |
|           expect(lqtyBalance).to.eq(0);
 | |
|           expect(totalStakingBalance).to.eq(
 | |
|             totalStakingBalanceBefore.sub(amount)
 | |
|           );
 | |
|           expect(userLqtyBalance).to.eq(amount);
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           const amount = ethers.utils.parseUnits("1", 18);
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             dsaWallet0.address
 | |
|           );
 | |
| 
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
| 
 | |
|           await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           const getUnstakeId = 0;
 | |
|           const setUnstakeId = 0;
 | |
|           const setEthGainId = 0;
 | |
|           const setLusdGainId = 0;
 | |
|           const unstakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "unstake",
 | |
|             args: [
 | |
|               amount,
 | |
|               getUnstakeId,
 | |
|               setUnstakeId,
 | |
|               setEthGainId,
 | |
|               setLusdGainId,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const unstakeTx = await dsaWallet0
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([unstakeSpell]), userWallet.address);
 | |
| 
 | |
|           const receipt = await unstakeTx.wait();
 | |
| 
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256", "uint256", "uint256"],
 | |
|             [
 | |
|               dsaWallet0.address,
 | |
|               amount,
 | |
|               getUnstakeId,
 | |
|               setUnstakeId,
 | |
|               setEthGainId,
 | |
|               setLusdGainId,
 | |
|             ]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogUnstake(address,uint256,uint256,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
| 
 | |
|       describe("claimStakingGains()", () => {
 | |
|         it("claims gains from staking", async () => {
 | |
|           const stakerDsa = await buildDSAv2(userWallet.address);
 | |
|           const amount = ethers.utils.parseUnits("1000", 18); // 1000 LQTY
 | |
| 
 | |
|           // Stake lots of LQTY
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
|           await stakerDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           // Open a Trove to cause an ETH issuance gain for stakers
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           // Redeem some ETH to cause an LUSD redemption gain for stakers
 | |
|           await helpers.redeem(
 | |
|             ethers.utils.parseUnits("1000", 18),
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet,
 | |
|             liquity
 | |
|           );
 | |
| 
 | |
|           const setEthGainId = 0;
 | |
|           const setLusdGainId = 0;
 | |
|           const ethGain = await liquity.staking.getPendingETHGain(
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const lusdGain = await liquity.staking.getPendingLUSDGain(
 | |
|             stakerDsa.address
 | |
|           );
 | |
| 
 | |
|           const claimStakingGainsSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "claimStakingGains",
 | |
|             args: [setEthGainId, setLusdGainId],
 | |
|           };
 | |
| 
 | |
|           const ethBalanceBefore = await ethers.provider.getBalance(
 | |
|             stakerDsa.address
 | |
|           );
 | |
| 
 | |
|           // Claim gains
 | |
|           await stakerDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(
 | |
|               ...encodeSpells([claimStakingGainsSpell]),
 | |
|               userWallet.address
 | |
|             );
 | |
| 
 | |
|           const ethBalanceAfter = await ethers.provider.getBalance(
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const lusdBalanceAfter = await liquity.lusdToken.balanceOf(
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           expect(ethBalanceAfter).to.eq(ethBalanceBefore.add(ethGain));
 | |
|           expect(lusdBalanceAfter).to.eq(lusdGain);
 | |
|         });
 | |
| 
 | |
|         it("claims gains from staking and stores them for other spells", async () => {
 | |
|           const stakerDsa = await buildDSAv2(userWallet.address);
 | |
|           const amount = ethers.utils.parseUnits("1000", 18); // 1000 LQTY
 | |
| 
 | |
|           // Stake lots of LQTY
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
|           await stakerDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           // Open a Trove to cause an ETH issuance gain for stakers
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           // Redeem some ETH to cause an LUSD redemption gain for stakers
 | |
|           await helpers.redeem(
 | |
|             ethers.utils.parseUnits("1000", 18),
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet,
 | |
|             liquity
 | |
|           );
 | |
| 
 | |
|           const ethGain = await liquity.staking.getPendingETHGain(
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const lusdGain = await liquity.staking.getPendingLUSDGain(
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const lusdBalanceBefore = await liquity.lusdToken.balanceOf(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const ethBalanceBefore = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const ethGainId = 111;
 | |
|           const lusdGainId = 222;
 | |
| 
 | |
|           const claimStakingGainsSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "claimStakingGains",
 | |
|             args: [ethGainId, lusdGainId],
 | |
|           };
 | |
| 
 | |
|           const withdrawEthSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [helpers.ETH, 0, userWallet.address, ethGainId, 0],
 | |
|           };
 | |
| 
 | |
|           const withdrawLusdSpell = {
 | |
|             connector: helpers.INSTADAPP_BASIC_V1_CONNECTOR,
 | |
|             method: "withdraw",
 | |
|             args: [
 | |
|               liquity.lusdToken.address,
 | |
|               0,
 | |
|               userWallet.address,
 | |
|               lusdGainId,
 | |
|               0,
 | |
|             ],
 | |
|           };
 | |
| 
 | |
|           const spells = [
 | |
|             claimStakingGainsSpell,
 | |
|             withdrawEthSpell,
 | |
|             withdrawLusdSpell,
 | |
|           ];
 | |
| 
 | |
|           // Claim gains
 | |
|           await stakerDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells(spells), userWallet.address, {
 | |
|               ce: 0,
 | |
|             });
 | |
| 
 | |
|           const ethBalanceAfter = await ethers.provider.getBalance(
 | |
|             userWallet.address
 | |
|           );
 | |
|           const lusdBalanceAfter = await liquity.lusdToken.balanceOf(
 | |
|             userWallet.address
 | |
|           );
 | |
| 
 | |
|           expect(
 | |
|             ethBalanceAfter,
 | |
|             "User's ETH balance should have increased by the issuance gain from staking"
 | |
|           ).to.eq(ethBalanceBefore.add(ethGain));
 | |
|           expect(
 | |
|             lusdBalanceAfter,
 | |
|             "User's LUSD balance should have increased by the redemption gain from staking"
 | |
|           ).to.eq(lusdBalanceBefore.add(lusdGain));
 | |
|         });
 | |
| 
 | |
|         it("returns Instadapp event name and data", async () => {
 | |
|           const stakerDsa = await buildDSAv2(userWallet.address);
 | |
|           const amount = ethers.utils.parseUnits("1000", 18); // 1000 LQTY
 | |
| 
 | |
|           // Stake lots of LQTY
 | |
|           await helpers.sendToken(
 | |
|             liquity.lqtyToken,
 | |
|             amount,
 | |
|             helpers.JUSTIN_SUN_ADDRESS,
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const stakeSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "stake",
 | |
|             args: [amount, 0, 0, 0, 0],
 | |
|           };
 | |
|           await stakerDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(...encodeSpells([stakeSpell]), userWallet.address);
 | |
| 
 | |
|           // Open a Trove to cause an ETH issuance gain for stakers
 | |
|           await helpers.createDsaTrove(dsaWallet0, userWallet, liquity);
 | |
| 
 | |
|           // Redeem some ETH to cause an LUSD redemption gain for stakers
 | |
|           await helpers.redeem(
 | |
|             ethers.utils.parseUnits("1000", 18),
 | |
|             contracts.STABILITY_POOL_ADDRESS,
 | |
|             userWallet,
 | |
|             liquity
 | |
|           );
 | |
| 
 | |
|           const setEthGainId = 0;
 | |
|           const setLusdGainId = 0;
 | |
|           const ethGain = await liquity.staking.getPendingETHGain(
 | |
|             stakerDsa.address
 | |
|           );
 | |
|           const lusdGain = await liquity.staking.getPendingLUSDGain(
 | |
|             stakerDsa.address
 | |
|           );
 | |
| 
 | |
|           const claimStakingGainsSpell = {
 | |
|             connector: helpers.LIQUITY_CONNECTOR,
 | |
|             method: "claimStakingGains",
 | |
|             args: [setEthGainId, setLusdGainId],
 | |
|           };
 | |
| 
 | |
|           // Claim gains
 | |
|           const claimGainsTx = await stakerDsa
 | |
|             .connect(userWallet)
 | |
|             .cast(
 | |
|               ...encodeSpells([claimStakingGainsSpell]),
 | |
|               userWallet.address
 | |
|             );
 | |
| 
 | |
|           const receipt = await claimGainsTx.wait();
 | |
| 
 | |
|           const castLogEvent = receipt.events.find(
 | |
|             (e: { event: string }) => e.event === "LogCast"
 | |
|           ).args;
 | |
|           const expectedEventParams = ethers.utils.defaultAbiCoder.encode(
 | |
|             ["address", "uint256", "uint256", "uint256", "uint256"],
 | |
|             [stakerDsa.address, ethGain, lusdGain, setEthGainId, setLusdGainId]
 | |
|           );
 | |
|           expect(castLogEvent.eventNames[0]).eq(
 | |
|             "LogClaimStakingGains(address,uint256,uint256,uint256,uint256)"
 | |
|           );
 | |
|           expect(castLogEvent.eventParams[0]).eq(expectedEventParams);
 | |
|         });
 | |
|       });
 | |
|     });
 | |
|   });
 | |
| });
 | 
