aave-protocol-v2/test/helpers/scenarios/rebalance-stable-rate.json

{
  "title": "LendingPool: Rebalance stable rate",
  "description": "Test cases for the rebalanceStableBorrowRate() function.",
  "stories": [
    {
      "description": "User 0 tries to rebalance user 1 who has no borrows in progress (revert expected)",
      "actions": [
        {
          "name": "rebalanceStableBorrowRate",
          "args": {
            "reserve": "DAI",
            "user": "0",
            "target": "1",
            "borrowRateMode": "variable"
          },
          "expected": "revert",
          "revertMessage": "User does not have any stable rate loan for this reserve"
        }
      ]
    },
    {
      "description": "User 0 deposits 1000 DAI, user 1 deposits 1 ETH, borrows 100 DAI at a variable rate, user 0 rebalances user 1 (revert expected)",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "DAI",
            "amount": "1000",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "DAI",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "DAI",
            "amount": "1000",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "ETH",
            "amount": "1",
            "user": "1",
            "sendValue": "1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "1",
            "timeTravel": "365"
          },
          "expected": "success"
        },
        {
          "name": "rebalanceStableBorrowRate",
          "args": {
            "reserve": "DAI",
            "user": "0",
            "target": "1"
          },
          "expected": "revert",
          "revertMessage": "The user borrow is variable and cannot be rebalanced"
        }
      ]
    },
    {
      "description": "User 1 swaps to stable, user 0 tries to rebalance but the conditions are not met (revert expected)",
      "actions": [
        {
          "name": "swapBorrowRateMode",
          "args": {
            "reserve": "DAI",
            "user": "1",
            "borrowRateMode": "variable"
          },
          "expected": "success"
        },
        {
          "name": "rebalanceStableBorrowRate",
          "args": {
            "reserve": "DAI",
            "user": "0",
            "target": "1"
          },
          "expected": "revert",
          "revertMessage": "Interest rate rebalance conditions were not met"
        }
      ]
    },
    {
      "description": "User 2 deposits ETH and borrows the remaining DAI, causing the stable rates to rise (liquidity rate < user 1 borrow rate). User 0 tries to rebalance user 1 (revert expected)",
      "actions": [
        {
          "name": "deposit",
          "args": {
            "reserve": "ETH",
            "amount": "5",
            "user": "2",
            "sendValue": "5"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "rebalanceStableBorrowRate",
          "args": {
            "reserve": "DAI",
            "user": "0",
            "target": "1"
          },
          "expected": "revert",
          "revertMessage": "Interest rate rebalance conditions were not met"
        }
      ]
    },
    {
      "description": "User 2 borrows more DAI, causing the liquidity rate to rise above user 1 stable borrow rate User 0 rebalances user 1",
      "actions": [
        {
          "name": "deposit",
          "args": {
            "reserve": "ETH",
            "amount": "3",
            "user": "2",
            "sendValue": "3"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "700",
            "borrowRateMode": "variable",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "rebalanceStableBorrowRate",
          "args": {
            "reserve": "DAI",
            "user": "0",
            "target": "1"
          },
          "expected": "success"
        }
      ]
    }
  ]
}