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feat: Moved imports to main adapter file

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domenicodev
2024-01-24 17:33:10 +01:00
parent 8ef2f75fae
commit 96915bd158
3 changed files with 403 additions and 191 deletions
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182
evm/src/angle/AngleAdapter.sol
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@@ -2,8 +2,10 @@
pragma experimental ABIEncoderV2; pragma experimental ABIEncoderV2;
pragma solidity ^0.8.13; pragma solidity ^0.8.13;
/// @dev Wrapped imports (incl. ISwapAdapter and IERC20) are included in utils import {IERC20, ISwapAdapter} from "src/interfaces/ISwapAdapter.sol";
import "./AngleUtils.sol";
/// @dev custom reserve limit factor to prevent revert errors in OrderSide.Buy
uint256 constant RESERVE_LIMIT_FACTOR = 10;
/// @title AngleAdapter /// @title AngleAdapter
/// @dev Information about prices: When swapping collateral to agEUR, the trade price will not decrease(amountOut); /// @dev Information about prices: When swapping collateral to agEUR, the trade price will not decrease(amountOut);
@@ -209,6 +211,182 @@ contract AngleAdapter is ISwapAdapter {
} }
} }
interface IAgToken is IERC20 {
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
MINTER ROLE ONLY FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Lets a whitelisted contract mint agTokens
/// @param account Address to mint to
/// @param amount Amount to mint
function mint(address account, uint256 amount) external;
/// @notice Burns `amount` tokens from a `burner` address after being asked to by `sender`
/// @param amount Amount of tokens to burn
/// @param burner Address to burn from
/// @param sender Address which requested the burn from `burner`
/// @dev This method is to be called by a contract with the minter right after being requested
/// to do so by a `sender` address willing to burn tokens from another `burner` address
/// @dev The method checks the allowance between the `sender` and the `burner`
function burnFrom(uint256 amount, address burner, address sender) external;
/// @notice Burns `amount` tokens from a `burner` address
/// @param amount Amount of tokens to burn
/// @param burner Address to burn from
/// @dev This method is to be called by a contract with a minter right on the AgToken after being
/// requested to do so by an address willing to burn tokens from its address
function burnSelf(uint256 amount, address burner) external;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
TREASURY ONLY FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Adds a minter in the contract
/// @param minter Minter address to add
/// @dev Zero address checks are performed directly in the `Treasury` contract
function addMinter(address minter) external;
/// @notice Removes a minter from the contract
/// @param minter Minter address to remove
/// @dev This function can also be called by a minter wishing to revoke itself
function removeMinter(address minter) external;
/// @notice Sets a new treasury contract
/// @param _treasury New treasury address
function setTreasury(address _treasury) external;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
EXTERNAL FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Checks whether an address has the right to mint agTokens
/// @param minter Address for which the minting right should be checked
/// @return Whether the address has the right to mint agTokens or not
function isMinter(address minter) external view returns (bool);
/// @notice Amount of decimals of the stablecoin
function decimals() external view returns (uint8);
}
enum ManagerType {
EXTERNAL
}
enum WhitelistType {
BACKED
}
struct ManagerStorage {
IERC20[] subCollaterals; // Subtokens handled by the manager or strategies
bytes config; // Additional configuration data
}
struct Collateral {
uint8 isManaged; // If the collateral is managed through external strategies
uint8 isMintLive; // If minting from this asset is unpaused
uint8 isBurnLive; // If burning to this asset is unpaused
uint8 decimals; // IERC20Metadata(collateral).decimals()
uint8 onlyWhitelisted; // If only whitelisted addresses can burn or redeem for this token
uint216 normalizedStables; // Normalized amount of stablecoins issued from this collateral
uint64[] xFeeMint; // Increasing exposures in [0,BASE_9[
int64[] yFeeMint; // Mint fees at the exposures specified in `xFeeMint`
uint64[] xFeeBurn; // Decreasing exposures in ]0,BASE_9]
int64[] yFeeBurn; // Burn fees at the exposures specified in `xFeeBurn`
bytes oracleConfig; // Data about the oracle used for the collateral
bytes whitelistData; // For whitelisted collateral, data used to verify whitelists
ManagerStorage managerData; // For managed collateral, data used to handle the strategies
}
struct TransmuterStorage {
IAgToken agToken; // agToken handled by the system
uint8 isRedemptionLive; // If redemption is unpaused
uint8 statusReentrant; // If call is reentrant or not
uint128 normalizedStables; // Normalized amount of stablecoins issued by the system
uint128 normalizer; // To reconcile `normalizedStables` values with the actual amount
address[] collateralList; // List of collateral assets supported by the system
uint64[] xRedemptionCurve; // Increasing collateral ratios > 0
int64[] yRedemptionCurve; // Value of the redemption fees at `xRedemptionCurve`
mapping(address => Collateral) collaterals; // Maps a collateral asset to its parameters
mapping(address => uint256) isTrusted; // If an address is trusted to update the normalizer value
mapping(address => uint256) isSellerTrusted; // If an address is trusted to sell accruing reward tokens
mapping(WhitelistType => mapping(address => uint256)) isWhitelistedForType;
}
interface IManager {
/// @notice Returns the amount of collateral managed by the Manager
/// @return balances Balances of all the subCollaterals handled by the manager
/// @dev MUST NOT revert
function totalAssets() external view returns (uint256[] memory balances, uint256 totalValue);
/// @notice Hook to invest `amount` of `collateral`
/// @dev MUST revert if the manager cannot accept these funds
/// @dev MUST have received the funds beforehand
function invest(uint256 amount) external;
/// @notice Sends `amount` of `collateral` to the `to` address
/// @dev Called when `agToken` are burnt and during redemptions
// @dev MUST revert if there are not funds enough available
/// @dev MUST be callable only by the transmuter
function release(address asset, address to, uint256 amount) external;
/// @notice Gives the maximum amount of collateral immediately available for a transfer
/// @dev Useful for integrators using `quoteIn` and `quoteOut`
function maxAvailable() external view returns (uint256);
}
/// @title LibManager
/// @author Angle Labs, Inc.
/// @dev Managed collateral assets may be handled through external smart contracts or directly through this library
/// @dev There is no implementation at this point for a managed collateral handled through this library, and
/// a new specific `ManagerType` would need to be added in this case
library LibManager {
/// @notice Checks to which address managed funds must be transferred
function transferRecipient(bytes memory config) internal view returns (address recipient) {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
recipient = address(this);
if (managerType == ManagerType.EXTERNAL) return abi.decode(data, (address));
}
/// @notice Performs a transfer of `token` for a collateral that is managed to a `to` address
/// @dev `token` may not be the actual collateral itself, as some collaterals have subcollaterals associated
/// with it
/// @dev Eventually pulls funds from strategies
function release(address token, address to, uint256 amount, bytes memory config) internal {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) abi.decode(data, (IManager)).release(token, to, amount);
}
/// @notice Gets the balances of all the tokens controlled through `managerData`
/// @return balances An array of size `subCollaterals` with current balances of all subCollaterals
/// including the one corresponding to the `managerData` given
/// @return totalValue The value of all the `subCollaterals` in `collateral`
/// @dev `subCollaterals` must always have as first token (index 0) the collateral itself
function totalAssets(bytes memory config) internal view returns (uint256[] memory balances, uint256 totalValue) {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) return abi.decode(data, (IManager)).totalAssets();
}
/// @notice Calls a hook if needed after new funds have been transfered to a manager
function invest(uint256 amount, bytes memory config) internal {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) abi.decode(data, (IManager)).invest(amount);
}
/// @notice Returns available underlying tokens, for instance if liquidity is fully used and
/// not withdrawable the function will return 0
function maxAvailable(bytes memory config) internal view returns (uint256 available) {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) return abi.decode(data, (IManager)).maxAvailable();
}
/// @notice Decodes the `managerData` associated to a collateral
function parseManagerConfig(
bytes memory config
) internal pure returns (ManagerType managerType, bytes memory data) {
(managerType, data) = abi.decode(config, (ManagerType, bytes));
}
}
abstract contract ITransmuter { abstract contract ITransmuter {
function implementation() external view returns (address) {} function implementation() external view returns (address) {}

189
evm/src/angle/AngleUtils.sol
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@@ -1,189 +0,0 @@
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;
/**
* @dev Collection of wrapped interfaces, items and libraries for Angle
* we use them here to maintain integrity and readability of contracts
* as there are many different imports and items
*/
import {IERC20, ISwapAdapter} from "src/interfaces/ISwapAdapter.sol";
/// @dev custom reserve limit factor to prevent revert errors in OrderSide.Buy
uint256 constant RESERVE_LIMIT_FACTOR = 10;
interface IAgToken is IERC20 {
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
MINTER ROLE ONLY FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Lets a whitelisted contract mint agTokens
/// @param account Address to mint to
/// @param amount Amount to mint
function mint(address account, uint256 amount) external;
/// @notice Burns `amount` tokens from a `burner` address after being asked to by `sender`
/// @param amount Amount of tokens to burn
/// @param burner Address to burn from
/// @param sender Address which requested the burn from `burner`
/// @dev This method is to be called by a contract with the minter right after being requested
/// to do so by a `sender` address willing to burn tokens from another `burner` address
/// @dev The method checks the allowance between the `sender` and the `burner`
function burnFrom(uint256 amount, address burner, address sender) external;
/// @notice Burns `amount` tokens from a `burner` address
/// @param amount Amount of tokens to burn
/// @param burner Address to burn from
/// @dev This method is to be called by a contract with a minter right on the AgToken after being
/// requested to do so by an address willing to burn tokens from its address
function burnSelf(uint256 amount, address burner) external;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
TREASURY ONLY FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Adds a minter in the contract
/// @param minter Minter address to add
/// @dev Zero address checks are performed directly in the `Treasury` contract
function addMinter(address minter) external;
/// @notice Removes a minter from the contract
/// @param minter Minter address to remove
/// @dev This function can also be called by a minter wishing to revoke itself
function removeMinter(address minter) external;
/// @notice Sets a new treasury contract
/// @param _treasury New treasury address
function setTreasury(address _treasury) external;
/*//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
EXTERNAL FUNCTIONS
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////*/
/// @notice Checks whether an address has the right to mint agTokens
/// @param minter Address for which the minting right should be checked
/// @return Whether the address has the right to mint agTokens or not
function isMinter(address minter) external view returns (bool);
/// @notice Amount of decimals of the stablecoin
function decimals() external view returns (uint8);
}
enum ManagerType {
EXTERNAL
}
enum WhitelistType {
BACKED
}
struct ManagerStorage {
IERC20[] subCollaterals; // Subtokens handled by the manager or strategies
bytes config; // Additional configuration data
}
struct Collateral {
uint8 isManaged; // If the collateral is managed through external strategies
uint8 isMintLive; // If minting from this asset is unpaused
uint8 isBurnLive; // If burning to this asset is unpaused
uint8 decimals; // IERC20Metadata(collateral).decimals()
uint8 onlyWhitelisted; // If only whitelisted addresses can burn or redeem for this token
uint216 normalizedStables; // Normalized amount of stablecoins issued from this collateral
uint64[] xFeeMint; // Increasing exposures in [0,BASE_9[
int64[] yFeeMint; // Mint fees at the exposures specified in `xFeeMint`
uint64[] xFeeBurn; // Decreasing exposures in ]0,BASE_9]
int64[] yFeeBurn; // Burn fees at the exposures specified in `xFeeBurn`
bytes oracleConfig; // Data about the oracle used for the collateral
bytes whitelistData; // For whitelisted collateral, data used to verify whitelists
ManagerStorage managerData; // For managed collateral, data used to handle the strategies
}
struct TransmuterStorage {
IAgToken agToken; // agToken handled by the system
uint8 isRedemptionLive; // If redemption is unpaused
uint8 statusReentrant; // If call is reentrant or not
uint128 normalizedStables; // Normalized amount of stablecoins issued by the system
uint128 normalizer; // To reconcile `normalizedStables` values with the actual amount
address[] collateralList; // List of collateral assets supported by the system
uint64[] xRedemptionCurve; // Increasing collateral ratios > 0
int64[] yRedemptionCurve; // Value of the redemption fees at `xRedemptionCurve`
mapping(address => Collateral) collaterals; // Maps a collateral asset to its parameters
mapping(address => uint256) isTrusted; // If an address is trusted to update the normalizer value
mapping(address => uint256) isSellerTrusted; // If an address is trusted to sell accruing reward tokens
mapping(WhitelistType => mapping(address => uint256)) isWhitelistedForType;
}
interface IManager {
/// @notice Returns the amount of collateral managed by the Manager
/// @return balances Balances of all the subCollaterals handled by the manager
/// @dev MUST NOT revert
function totalAssets() external view returns (uint256[] memory balances, uint256 totalValue);
/// @notice Hook to invest `amount` of `collateral`
/// @dev MUST revert if the manager cannot accept these funds
/// @dev MUST have received the funds beforehand
function invest(uint256 amount) external;
/// @notice Sends `amount` of `collateral` to the `to` address
/// @dev Called when `agToken` are burnt and during redemptions
// @dev MUST revert if there are not funds enough available
/// @dev MUST be callable only by the transmuter
function release(address asset, address to, uint256 amount) external;
/// @notice Gives the maximum amount of collateral immediately available for a transfer
/// @dev Useful for integrators using `quoteIn` and `quoteOut`
function maxAvailable() external view returns (uint256);
}
/// @title LibManager
/// @author Angle Labs, Inc.
/// @dev Managed collateral assets may be handled through external smart contracts or directly through this library
/// @dev There is no implementation at this point for a managed collateral handled through this library, and
/// a new specific `ManagerType` would need to be added in this case
library LibManager {
/// @notice Checks to which address managed funds must be transferred
function transferRecipient(bytes memory config) internal view returns (address recipient) {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
recipient = address(this);
if (managerType == ManagerType.EXTERNAL) return abi.decode(data, (address));
}
/// @notice Performs a transfer of `token` for a collateral that is managed to a `to` address
/// @dev `token` may not be the actual collateral itself, as some collaterals have subcollaterals associated
/// with it
/// @dev Eventually pulls funds from strategies
function release(address token, address to, uint256 amount, bytes memory config) internal {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) abi.decode(data, (IManager)).release(token, to, amount);
}
/// @notice Gets the balances of all the tokens controlled through `managerData`
/// @return balances An array of size `subCollaterals` with current balances of all subCollaterals
/// including the one corresponding to the `managerData` given
/// @return totalValue The value of all the `subCollaterals` in `collateral`
/// @dev `subCollaterals` must always have as first token (index 0) the collateral itself
function totalAssets(bytes memory config) internal view returns (uint256[] memory balances, uint256 totalValue) {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) return abi.decode(data, (IManager)).totalAssets();
}
/// @notice Calls a hook if needed after new funds have been transfered to a manager
function invest(uint256 amount, bytes memory config) internal {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) abi.decode(data, (IManager)).invest(amount);
}
/// @notice Returns available underlying tokens, for instance if liquidity is fully used and
/// not withdrawable the function will return 0
function maxAvailable(bytes memory config) internal view returns (uint256 available) {
(ManagerType managerType, bytes memory data) = parseManagerConfig(config);
if (managerType == ManagerType.EXTERNAL) return abi.decode(data, (IManager)).maxAvailable();
}
/// @notice Decodes the `managerData` associated to a collateral
function parseManagerConfig(
bytes memory config
) internal pure returns (ManagerType managerType, bytes memory data) {
(managerType, data) = abi.decode(config, (ManagerType, bytes));
}
}

223
evm/test/AngleAdapter.t.sol Normal file
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@@ -0,0 +1,223 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity ^0.8.13;
import "forge-std/Test.sol";
import "openzeppelin-contracts/contracts/interfaces/IERC20.sol";
import "src/angle/AngleAdapter.sol";
import "src/interfaces/ISwapAdapterTypes.sol";
import "src/libraries/FractionMath.sol";
contract AngleAdapterTest is Test, ISwapAdapterTypes {
using FractionMath for Fraction;
AngleAdapter adapter;
IERC20 agEUR;
IERC20 constant EURC = IERC20(0x1aBaEA1f7C830bD89Acc67eC4af516284b1bC33c);
ITransmuter constant transmuter = ITransmuter(0x00253582b2a3FE112feEC532221d9708c64cEFAb);
uint256 constant TEST_ITERATIONS = 100;
function setUp() public {
uint256 forkBlock = 18921770;
vm.createSelectFork(vm.rpcUrl("mainnet"), forkBlock);
adapter = new
AngleAdapter(transmuter);
agEUR = IERC20(transmuter.agToken());
vm.label(address(adapter), "AngleAdapter");
vm.label(address(agEUR), "agEUR");
vm.label(address(EURC), "EURC");
}
function testPriceFuzzAngle(uint256 amount0, uint256 amount1) public {
bytes32 pair = bytes32(0);
uint256[] memory limits = adapter.getLimits(pair, EURC, agEUR);
vm.assume(amount0 < limits[0] && amount0 > 0);
vm.assume(amount1 < limits[0] && amount1 > 0);
uint256[] memory amounts = new uint256[](2);
amounts[0] = amount0;
amounts[1] = amount1;
Fraction[] memory prices = adapter.price(pair, EURC, agEUR, amounts);
for (uint256 i = 0; i < prices.length; i++) {
assertGt(prices[i].numerator, 0);
assertGt(prices[i].denominator, 0);
}
}
function testPriceDecreasingAngle() public {
bytes32 pair = bytes32(0);
uint256[] memory amounts = new uint256[](TEST_ITERATIONS);
for (uint256 i = 0; i < TEST_ITERATIONS; i++) {
amounts[i] = 1000 * (i+1) * 10 ** 18;
}
Fraction[] memory prices = adapter.price(pair, agEUR, EURC, amounts);
for (uint256 i = 0; i < TEST_ITERATIONS - 1; i++) {
assertEq(prices[i].compareFractions(prices[i + 1]), 1);
assertGt(prices[i].denominator, 0);
assertGt(prices[i + 1].denominator, 0);
}
}
function testSwapFuzzAngleMint(uint256 specifiedAmount, bool isBuy) public {
OrderSide side = isBuy ? OrderSide.Buy : OrderSide.Sell;
bytes32 pair = bytes32(0);
uint256[] memory limits = adapter.getLimits(pair, EURC, agEUR);
if (side == OrderSide.Buy) {
vm.assume(specifiedAmount < limits[1] && specifiedAmount > 0);
deal(address(EURC), address(this), type(uint256).max);
EURC.approve(address(adapter), type(uint256).max);
} else {
vm.assume(specifiedAmount < limits[0] && specifiedAmount > 0);
deal(address(EURC), address(this), specifiedAmount);
EURC.approve(address(adapter), specifiedAmount);
}
uint256 eurc_balance = EURC.balanceOf(address(this));
uint256 agEUR_balance = agEUR.balanceOf(address(this));
Trade memory trade =
adapter.swap(pair, EURC, agEUR, side, specifiedAmount);
if (trade.calculatedAmount > 0) {
if (side == OrderSide.Buy) {
assertEq(
specifiedAmount,
agEUR.balanceOf(address(this)) - agEUR_balance
);
assertEq(
trade.calculatedAmount,
eurc_balance - EURC.balanceOf(address(this))
);
} else {
assertEq(
specifiedAmount,
eurc_balance - EURC.balanceOf(address(this))
);
assertEq(
trade.calculatedAmount,
agEUR.balanceOf(address(this)) - agEUR_balance
);
}
}
}
function testSwapFuzzAngleRedeem(uint256 specifiedAmount, bool isBuy) public {
OrderSide side = isBuy ? OrderSide.Buy : OrderSide.Sell;
bytes32 pair = bytes32(0);
uint256[] memory limits = adapter.getLimits(pair, agEUR, EURC);
console.log(limits[0], limits[1]);
if (side == OrderSide.Buy) {
vm.assume(specifiedAmount < limits[1] && specifiedAmount > 0);
deal(address(agEUR), address(this), type(uint256).max);
agEUR.approve(address(adapter), type(uint256).max);
} else {
vm.assume(specifiedAmount < limits[0] && specifiedAmount > 0);
deal(address(agEUR), address(this), specifiedAmount);
agEUR.approve(address(adapter), specifiedAmount);
}
uint256 eurc_balance = EURC.balanceOf(address(this));
uint256 agEUR_balance = agEUR.balanceOf(address(this));
Trade memory trade =
adapter.swap(pair, agEUR, EURC, side, specifiedAmount);
if (trade.calculatedAmount > 0) {
if (side == OrderSide.Buy) {
assertEq(
specifiedAmount,
EURC.balanceOf(address(this)) - eurc_balance
);
assertEq(
trade.calculatedAmount,
agEUR_balance - agEUR.balanceOf(address(this))
);
} else {
assertEq(
specifiedAmount,
agEUR_balance - agEUR.balanceOf(address(this))
);
assertEq(
trade.calculatedAmount,
EURC.balanceOf(address(this)) - eurc_balance
);
}
}
}
function testSwapSellIncreasingAngle() public {
executeIncreasingSwapsAngle(OrderSide.Sell);
}
function executeIncreasingSwapsAngle(OrderSide side) internal {
bytes32 pair = bytes32(0);
uint256[] memory amounts = new uint256[](TEST_ITERATIONS);
for (uint256 i = 0; i < TEST_ITERATIONS; i++) {
amounts[i] =
side == OrderSide.Sell ? (100 * i * 10 ** 18) : (100 * i * 10 ** 6);
}
Trade[] memory trades = new Trade[](TEST_ITERATIONS);
uint256 beforeSwap;
for (uint256 i = 1; i < TEST_ITERATIONS; i++) {
beforeSwap = vm.snapshot();
if(side == OrderSide.Sell) {
deal(address(agEUR), address(this), amounts[i]);
agEUR.approve(address(adapter), amounts[i]);
}
else {
deal(address(agEUR), address(this), type(uint256).max);
agEUR.approve(address(adapter), type(uint256).max);
}
trades[i] = adapter.swap(pair, agEUR, EURC, side, amounts[i]);
vm.revertTo(beforeSwap);
}
for (uint256 i = 1; i < TEST_ITERATIONS - 1; i++) {
assertLe(trades[i].calculatedAmount, trades[i + 1].calculatedAmount);
assertEq(trades[i].price.compareFractions(trades[i + 1].price), 1);
}
}
function testSwapBuyIncreasingAngle() public {
executeIncreasingSwapsAngle(OrderSide.Buy);
}
function testGetCapabilitiesAngle(bytes32 pair, address t0, address t1) public {
Capability[] memory res =
adapter.getCapabilities(pair, IERC20(t0), IERC20(t1));
assertEq(res.length, 3);
}
function testGetTokensAngle() public {
IERC20[] memory tokens = adapter.getTokens(bytes32(0));
assertGe(tokens.length, 2);
}
function testGetLimits() public {
bytes32 pair = bytes32(0);
uint256[] memory limits = adapter.getLimits(pair, agEUR, EURC);
assertEq(limits.length, 2);
}
}