aave-protocol-v2/test/helpers/scenarios/borrow-repay-variable.json

{
  "title": "LendingPool: Borrow/repay (variable rate)",
  "description": "Test cases for the borrow function, variable mode.",
  "stories": [
    {
      "description": "User 2 deposits 1 DAI to account for rounding errors",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "DAI",
            "amount": "1",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "DAI",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "DAI",
            "amount": "1",
            "user": "2"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 deposits 1000 DAI, user 1 deposits 1 WETH as collateral and borrows 100 DAI at variable rate",
      "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": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "1",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "1",
            "timeTravel": "365"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 tries to borrow the rest of the DAI liquidity (revert expected)",
      "actions": [
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "900",
            "borrowRateMode": "variable",
            "user": "1"
          },
          "expected": "revert",
          "revertMessage": "There is not enough collateral to cover a new borrow"
        }
      ]
    },
    {
      "description": "User 1 tries to repay 0 DAI (revert expected)",
      "actions": [
        {
          "name": "repay",
          "args": {
            "reserve": "DAI",
            "amount": "0",
            "user": "1",
            "onBehalfOf": "1"
          },
          "expected": "revert",
          "revertMessage": "Amount must be greater than 0"
        }
      ]
    },
    {
      "description": "User 1 repays a small amount of DAI, enough to cover a small part of the interest",
      "actions": [
        {
          "name": "approve",
          "args": {
            "reserve": "DAI",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "DAI",
            "amount": "1.25",
            "user": "1",
            "onBehalfOf": "1",
            "borrowRateMode": "variable"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 repays the DAI borrow after one year",
      "actions": [
        {
          "name": "mint",
          "description": "Mint 10 DAI to cover the interest",
          "args": {
            "reserve": "DAI",
            "amount": "10",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "DAI",
            "amount": "-1",
            "user": "1",
            "onBehalfOf": "1",
            "borrowRateMode": "variable"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 redeems the deposited DAI plus interest",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "DAI",
            "amount": "-1",
            "user": "0"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 redeems the collateral",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "WETH",

            "amount": "-1",
            "user": "1"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 2 deposits a small amount of WETH to account for rounding errors",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "0.001",
            "user": "2",
            "sendValue": "0.001"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 deposits 1 WETH, user 1 deposits 100 LINK as collateral and borrows 0.5 ETH at variable rate",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "1",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "mint",
          "args": {
            "reserve": "LINK",
            "amount": "100",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "LINK",
            "user": "1"
          },
          "expected": "success"
        },

        {
          "name": "deposit",
          "args": {
            "reserve": "LINK",
            "amount": "100",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "WETH",

            "amount": "0.5",
            "borrowRateMode": "variable",
            "user": "1",
            "timeTravel": "365"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 tries to repay 0 ETH",
      "actions": [
        {
          "name": "repay",
          "args": {
            "reserve": "WETH",
            "amount": "0",
            "user": "1",
            "onBehalfOf": "1",
            "borrowRateMode": "variable",
            "sendValue": "0"
          },
          "expected": "revert",
          "revertMessage": "Amount must be greater than 0"
        }
      ]
    },
    {
      "description": "User 2 tries to repay everything on behalf of user 1 using uint(-1) (revert expected)",
      "actions": [
        {
          "name": "repay",
          "args": {
            "reserve": "WETH",

            "amount": "-1",
            "user": "2",
            "borrowRateMode": "variable",
            "onBehalfOf": "1"
          },
          "expected": "revert",
          "revertMessage": "To repay on behalf of an user an explicit amount to repay is needed"
        }
      ]
    },
    {
      "description": "User 3 repays a small amount of WETH on behalf of user 1",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "3"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "3"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "WETH",

            "amount": "0.2",
            "user": "3",
            "borrowRateMode": "variable",
            "onBehalfOf": "1"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 repays the WETH borrow after one year",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "WETH",

            "amount": "-1",
            "borrowRateMode": "variable",
            "user": "1",
            "onBehalfOf": "1"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 redeems the deposited WETH plus interest",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "WETH",

            "amount": "-1",
            "user": "0"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 redeems the collateral",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "LINK",
            "amount": "-1",
            "user": "1"
          },
          "expected": "success"
        }
      ]
    },

    {
      "description": "User 2 deposits 1 USDC to account for rounding errors",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "USDC",
            "amount": "1",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "USDC",
            "user": "2"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "USDC",
            "amount": "1",
            "user": "2"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 deposits 1000 USDC, user 1 deposits 1 WETH as collateral and borrows 100 USDC at variable rate",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "USDC",
            "amount": "1000",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "USDC",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "USDC",
            "amount": "1000",
            "user": "0"
          },
          "expected": "success"
        },
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "1",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "USDC",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "1",
            "timeTravel": "365"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 tries to borrow the rest of the USDC liquidity (revert expected)",
      "actions": [
        {
          "name": "borrow",
          "args": {
            "reserve": "USDC",
            "amount": "900",
            "borrowRateMode": "variable",
            "user": "1"
          },
          "expected": "revert",
          "revertMessage": "There is not enough collateral to cover a new borrow"
        }
      ]
    },
    {
      "description": "User 1 repays the USDC borrow after one year",
      "actions": [
        {
          "name": "mint",
          "description": "Mint 10 USDC to cover the interest",
          "args": {
            "reserve": "USDC",
            "amount": "10",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "USDC",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "USDC",
            "amount": "-1",
            "user": "1",
            "onBehalfOf": "1",
            "borrowRateMode": "variable"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 redeems the deposited USDC plus interest",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "USDC",
            "amount": "-1",
            "user": "0"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 redeems the collateral",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "WETH",
            "amount": "-1",
            "user": "1"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 deposits 1000 DAI, user 3 tries to borrow 1000 DAI without any collateral (revert expected)",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "DAI",
            "amount": "1000",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "DAI",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "DAI",
            "amount": "1000",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "1000",
            "borrowRateMode": "variable",
            "user": "3"
          },
          "expected": "revert",
          "revertMessage": "The collateral balance is 0"
        }
      ]
    },
    {
      "description": "user 3 deposits 0.1 ETH collateral to borrow 100 DAI; 0.1 ETH is not enough to borrow 100 DAI (revert expected)",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "0.1",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "0.1",
            "user": "3"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "3"
          },
          "expected": "revert",
          "revertMessage": "There is not enough collateral to cover a new borrow"
        }
      ]
    },
    {
      "description": "user 3 redeems the 0.1 ETH",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "WETH",

            "amount": "-1",
            "user": "3"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 1 deposits 1000 USDC, user 3 tries to borrow 1000 USDC without any collateral (revert expected)",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "USDC",
            "amount": "1000",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "USDC",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "USDC",
            "amount": "1000",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "USDC",
            "amount": "1000",
            "borrowRateMode": "variable",
            "user": "3"
          },
          "expected": "revert",
          "revertMessage": "The collateral balance is 0"
        }
      ]
    },
    {
      "description": "user 3 deposits 0.1 ETH collateral to borrow 100 USDC; 0.1 ETH is not enough to borrow 100 USDC (revert expected)",
      "actions": [
        {
          "name": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "1",
            "user": "3"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "1"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "0.1",
            "user": "3",
            "sendValue": "0.1"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "USDC",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "3"
          },
          "expected": "revert",
          "revertMessage": "There is not enough collateral to cover a new borrow"
        }
      ]
    },
    {
      "description": "user 3 redeems the 0.1 ETH",
      "actions": [
        {
          "name": "redeem",
          "args": {
            "reserve": "WETH",

            "amount": "-1",
            "user": "3"
          },
          "expected": "success"
        }
      ]
    },
    {
      "description": "User 0 deposits 1000 DAI, user 6 deposits 2 WETH and borrow 100 DAI at variable rate first, then 100 DAI at stable rate, repays everything. User 0 redeems",
      "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": "mint",
          "args": {
            "reserve": "WETH",
            "amount": "2",
            "user": "6"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "WETH",
            "user": "6"
          },
          "expected": "success"
        },
        {
          "name": "deposit",
          "args": {
            "reserve": "WETH",

            "amount": "2",
            "user": "6",
            "sendValue": "2"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "100",
            "borrowRateMode": "variable",
            "user": "6",
            "timeTravel": "365"
          },
          "expected": "success"
        },
        {
          "name": "borrow",
          "args": {
            "reserve": "DAI",
            "amount": "100",
            "borrowRateMode": "stable",
            "user": "6",
            "timeTravel": "365"
          },
          "expected": "success"
        },
        {
          "name": "mint",
          "description": "Mint 50 DAI to cover the interest",
          "args": {
            "reserve": "DAI",
            "amount": "50",
            "user": "6"
          },
          "expected": "success"
        },
        {
          "name": "approve",
          "args": {
            "reserve": "DAI",
            "user": "6"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "DAI",
            "amount": "-1",
            "user": "6",
            "onBehalfOf": "6",
            "borrowRateMode": "stable"
          },
          "expected": "success"
        },
        {
          "name": "repay",
          "args": {
            "reserve": "DAI",
            "amount": "-1",
            "user": "6",
            "onBehalfOf": "6",
            "borrowRateMode": "variable"
          },
          "expected": "success"
        },
        {
          "name": "redeem",
          "args": {
            "reserve": "DAI",
            "amount": "-1",
            "user": "0"
          },
          "expected": "success"
        }
      ]
    }
  ]
}