[VPD-112]: New WBNB market on BNB Chain Core pool

simulations/vip-545/abi/VTreasury.json

@@ -0,0 +1,83 @@
+[
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" },
+      { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" }
+    ],
+    "name": "OwnershipTransferred",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "address", "name": "tokenAddress", "type": "address" },
+      { "indexed": false, "internalType": "uint256", "name": "withdrawAmount", "type": "uint256" },
+      { "indexed": false, "internalType": "address", "name": "withdrawAddress", "type": "address" }
+    ],
+    "name": "WithdrawTreasuryBEP20",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": false, "internalType": "uint256", "name": "withdrawAmount", "type": "uint256" },
+      { "indexed": false, "internalType": "address", "name": "withdrawAddress", "type": "address" }
+    ],
+    "name": "WithdrawTreasuryBNB",
+    "type": "event"
+  },
+  { "payable": true, "stateMutability": "payable", "type": "fallback" },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "owner",
+    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [],
+    "name": "renounceOwnership",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [{ "internalType": "address", "name": "newOwner", "type": "address" }],
+    "name": "transferOwnership",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      { "internalType": "address", "name": "tokenAddress", "type": "address" },
+      { "internalType": "uint256", "name": "withdrawAmount", "type": "uint256" },
+      { "internalType": "address", "name": "withdrawAddress", "type": "address" }
+    ],
+    "name": "withdrawTreasuryBEP20",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      { "internalType": "uint256", "name": "withdrawAmount", "type": "uint256" },
+      { "internalType": "address payable", "name": "withdrawAddress", "type": "address" }
+    ],
+    "name": "withdrawTreasuryBNB",
+    "outputs": [],
+    "payable": true,
+    "stateMutability": "payable",
+    "type": "function"
+  }
+]

simulations/vip-545/abi/WBNB.json

@@ -0,0 +1,153 @@
+[
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "name",
+    "outputs": [{ "name": "", "type": "string" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      { "name": "guy", "type": "address" },
+      { "name": "wad", "type": "uint256" }
+    ],
+    "name": "approve",
+    "outputs": [{ "name": "", "type": "bool" }],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "totalSupply",
+    "outputs": [{ "name": "", "type": "uint256" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      { "name": "src", "type": "address" },
+      { "name": "dst", "type": "address" },
+      { "name": "wad", "type": "uint256" }
+    ],
+    "name": "transferFrom",
+    "outputs": [{ "name": "", "type": "bool" }],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [{ "name": "wad", "type": "uint256" }],
+    "name": "withdraw",
+    "outputs": [],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "decimals",
+    "outputs": [{ "name": "", "type": "uint8" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [{ "name": "", "type": "address" }],
+    "name": "balanceOf",
+    "outputs": [{ "name": "", "type": "uint256" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [],
+    "name": "symbol",
+    "outputs": [{ "name": "", "type": "string" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [
+      { "name": "dst", "type": "address" },
+      { "name": "wad", "type": "uint256" }
+    ],
+    "name": "transfer",
+    "outputs": [{ "name": "", "type": "bool" }],
+    "payable": false,
+    "stateMutability": "nonpayable",
+    "type": "function"
+  },
+  {
+    "constant": false,
+    "inputs": [],
+    "name": "deposit",
+    "outputs": [],
+    "payable": true,
+    "stateMutability": "payable",
+    "type": "function"
+  },
+  {
+    "constant": true,
+    "inputs": [
+      { "name": "", "type": "address" },
+      { "name": "", "type": "address" }
+    ],
+    "name": "allowance",
+    "outputs": [{ "name": "", "type": "uint256" }],
+    "payable": false,
+    "stateMutability": "view",
+    "type": "function"
+  },
+  { "payable": true, "stateMutability": "payable", "type": "fallback" },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": true, "name": "src", "type": "address" },
+      { "indexed": true, "name": "guy", "type": "address" },
+      { "indexed": false, "name": "wad", "type": "uint256" }
+    ],
+    "name": "Approval",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": true, "name": "src", "type": "address" },
+      { "indexed": true, "name": "dst", "type": "address" },
+      { "indexed": false, "name": "wad", "type": "uint256" }
+    ],
+    "name": "Transfer",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": true, "name": "dst", "type": "address" },
+      { "indexed": false, "name": "wad", "type": "uint256" }
+    ],
+    "name": "Deposit",
+    "type": "event"
+  },
+  {
+    "anonymous": false,
+    "inputs": [
+      { "indexed": true, "name": "src", "type": "address" },
+      { "indexed": false, "name": "wad", "type": "uint256" }
+    ],
+    "name": "Withdrawal",
+    "type": "event"
+  }
+]

simulations/vip-545/bsctestnet.ts

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+import { expect } from "chai";
+import { Contract } from "ethers";
+import { ethers } from "hardhat";
+import { NETWORK_ADDRESSES } from "src/networkAddresses";
+import { expectEvents, setMaxStalePeriodInChainlinkOracle } from "src/utils";
+import { forking, testVip } from "src/vip-framework";
+import { checkRiskParameters } from "src/vip-framework/checks/checkRiskParameters";
+import { checkVToken } from "src/vip-framework/checks/checkVToken";
+import { checkTwoKinksInterestRate } from "src/vip-framework/checks/interestRateModel";
+
+import {
+  NATIVE_TOKEN_GATEWAY_VWBNB_CORE,
+  PROTOCOL_SHARE_RESERVE,
+  RATE_MODEL,
+  WBNBMarketSpec,
+  convertAmountToVTokens,
+  vip545,
+} from "../../vips/vip-545/bsctestnet";
+import COMPTROLLER_ABI from "./abi/Comptroller.json";
+import NATIVE_TOKEN_GATEWAY_ABI from "./abi/NativeTokenGateway.json";
+import RESILIENT_ORACLE_ABI from "./abi/ResilientOracle.json";
+import VTOKEN_ABI from "./abi/VToken.json";
+import VTREASURY_ABI from "./abi/VTreasury.json";
+import WBNB_ABI from "./abi/WBNB.json";
+
+const { bsctestnet } = NETWORK_ADDRESSES;
+const CHAINLINK_WBNB_FEED = "0x2514895c72f50D8bd4B4F9b1110F0D6bD2c97526";
+
+forking(65021084, async () => {
+  let comptroller: Contract;
+  let nativeTokenGateway: Contract;
+  let resilientOracle: Contract;
+  let wbnb: Contract;
+  let vWBNB: Contract;
+
+  before(async () => {
+    const provider = ethers.provider;
+    comptroller = new ethers.Contract(WBNBMarketSpec.vToken.comptroller, COMPTROLLER_ABI, provider);
+    nativeTokenGateway = new ethers.Contract(NATIVE_TOKEN_GATEWAY_VWBNB_CORE, NATIVE_TOKEN_GATEWAY_ABI, provider);
+    wbnb = new ethers.Contract(WBNBMarketSpec.vToken.underlying.address, WBNB_ABI, provider);
+    vWBNB = new ethers.Contract(WBNBMarketSpec.vToken.address, VTOKEN_ABI, provider);
+    resilientOracle = new ethers.Contract(bsctestnet.RESILIENT_ORACLE, RESILIENT_ORACLE_ABI, ethers.provider);
+
+    await setMaxStalePeriodInChainlinkOracle(
+      NETWORK_ADDRESSES.bsctestnet.CHAINLINK_ORACLE,
+      WBNBMarketSpec.vToken.underlying.address,
+      CHAINLINK_WBNB_FEED,
+      NETWORK_ADDRESSES.bsctestnet.NORMAL_TIMELOCK,
+      315360000,
+    );
+  });
+
+  describe("Pre-VIP behavior", async () => {
+    it("check WBNB market not listed", async () => {
+      const market = await comptroller.markets(WBNBMarketSpec.vToken.underlying.address);
+      expect(market.isListed).to.equal(false);
+    });
+  });
+
+  testVip("VIP-545", await vip545(), {
+    callbackAfterExecution: async txResponse => {
+      await expectEvents(
+        txResponse,
+        [COMPTROLLER_ABI, VTOKEN_ABI, VTREASURY_ABI],
+        [
+          "MarketListed",
+          "NewSupplyCap",
+          "NewBorrowCap",
+          "NewAccessControlManager",
+          "NewProtocolShareReserve",
+          "NewReduceReservesBlockDelta",
+          "NewReserveFactor",
+          "NewCollateralFactor",
+          "WithdrawTreasuryBEP20",
+        ],
+        [1, 1, 1, 1, 1, 1, 1, 1, 1],
+      );
+    },
+  });
+
+  describe("Post-VIP behavior", async () => {
+    it("check new IRM", async () => {
+      expect(await vWBNB.interestRateModel()).to.equal(RATE_MODEL);
+    });
+
+    checkTwoKinksInterestRate(RATE_MODEL, "vWBNB", {
+      base: WBNBMarketSpec.interestRateModel.baseRatePerYear,
+      base2: WBNBMarketSpec.interestRateModel.baseRatePerYear2,
+      multiplier: WBNBMarketSpec.interestRateModel.multiplierPerYear,
+      jump: WBNBMarketSpec.interestRateModel.jumpMultiplierPerYear,
+      kink1: WBNBMarketSpec.interestRateModel.kink,
+      kink2: WBNBMarketSpec.interestRateModel.kink2,
+      multiplier2: WBNBMarketSpec.interestRateModel.multiplierPerYear2,
+    });
+
+    checkVToken(WBNBMarketSpec.vToken.address, {
+      name: "Venus WBNB",
+      symbol: "vWBNB",
+      decimals: 8,
+      underlying: WBNBMarketSpec.vToken.underlying.address,
+      exchangeRate: WBNBMarketSpec.vToken.exchangeRate,
+      comptroller: WBNBMarketSpec.vToken.comptroller,
+    });
+
+    checkRiskParameters(WBNBMarketSpec.vToken.address, WBNBMarketSpec.vToken, WBNBMarketSpec.riskParameters);
+
+    it("check price WBNB", async () => {
+      const expectedPrice = "894854783350000000000";
+      expect(await resilientOracle.getPrice(WBNBMarketSpec.vToken.underlying.address)).to.equal(expectedPrice);
+      expect(await resilientOracle.getUnderlyingPrice(WBNBMarketSpec.vToken.address)).to.equal(expectedPrice);
+    });
+
+    it("markets have correct owner", async () => {
+      expect(await vWBNB.admin()).to.equal(bsctestnet.NORMAL_TIMELOCK);
+    });
+
+    it("markets have correct ACM", async () => {
+      expect(await vWBNB.accessControlManager()).to.equal(bsctestnet.ACCESS_CONTROL_MANAGER);
+    });
+
+    it("markets should have correct protocol share reserve", async () => {
+      expect(await vWBNB.protocolShareReserve()).to.equal(PROTOCOL_SHARE_RESERVE);
+    });
+
+    it("markets should have correct total supply", async () => {
+      const vWBNBSupply = await vWBNB.totalSupply();
+
+      expect(vWBNBSupply).to.equal(
+        convertAmountToVTokens(WBNBMarketSpec.initialSupply.amount, WBNBMarketSpec.vToken.exchangeRate),
+      );
+    });
+
+    it("markets should have balance of underlying", async () => {
+      const wbnbBalance = await wbnb.balanceOf(vWBNB.address);
+
+      expect(wbnbBalance).to.equal(WBNBMarketSpec.initialSupply.amount);
+    });
+
+    it("should burn vTokens (on testnet transfer to VTreasury) and transfer vTokens to receiver", async () => {
+      const vWBNBReceiverBalance = await vWBNB.balanceOf(WBNBMarketSpec.initialSupply.vTokenReceiver);
+
+      expect(vWBNBReceiverBalance).to.equal(
+        convertAmountToVTokens(WBNBMarketSpec.initialSupply.amount, WBNBMarketSpec.vToken.exchangeRate),
+      );
+    });
+
+    it("should not leave any vTokens in the timelock", async () => {
+      const vWBNBTimelockBalance = await vWBNB.balanceOf(bsctestnet.NORMAL_TIMELOCK);
+
+      expect(vWBNBTimelockBalance).to.equal(0);
+    });
+
+    it("should transfer the ownership of the NativeTokenGateway", async () => {
+      expect(await nativeTokenGateway.owner()).to.equal(bsctestnet.NORMAL_TIMELOCK);
+    });
+  });
+});