{ "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": "0.001", "user": "2" }, "expected": "success" }, { "name": "approve", "args": { "reserve": "WETH", "user": "2" }, "expected": "success" }, { "name": "deposit", "args": { "reserve": "WETH", "amount": "0.001", "user": "2" }, "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" }, "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" }, "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" }, "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" } ] } ] }