FuseERC4626 Vaults : unit & integration tests

package.json

@@ -15,12 +15,14 @@
     "solhint": "solhint --config ./.solhint.json 'src/**/*.sol' --fix",
     "solhint:check": "solhint --config ./.solhint.json 'src/**/*.sol'",
     "lint": "npm run prettier && npm run solhint",
-    "lint:check": "npm run prettier:check && npm run solhint:check"
-
+    "lint:check": "npm run prettier:check && npm run solhint:check",
+    "test": "forge test --no-match-contract Integration -vvv",
+    "test:integration": "FORK_BLOCK=14473700; forge test -vvv --fork-url https://eth-mainnet.alchemyapi.io/v2/$MAINNET_ALCHEMY_API_KEY --fork-block-number $FORK_BLOCK --match-contract Integration",
+    "test:integration:latest": "forge test -vvv --fork-url https://eth-mainnet.alchemyapi.io/v2/$MAINNET_ALCHEMY_API_KEY --match-contract Integration"
   },
   "devDependencies": {
     "prettier": "^2.5.1",
     "prettier-plugin-solidity": "^1.0.0-beta.19",
     "solhint": "^3.3.6"
   }
-}
+}

src/external/CToken.sol

@@ -7,4 +7,15 @@ abstract contract CToken is CERC20 {
     function comptroller() external view virtual returns (address);
 
     function getCash() external view virtual returns (uint256);
+
+    function getAccountSnapshot(address)
+        external
+        view
+        virtual
+        returns (
+            uint256,
+            uint256,
+            uint256,
+            uint256
+        );
 }

src/external/Unitroller.sol

@@ -1,8 +1,6 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma solidity ^0.8.4;
 
-import {CERC20} from "libcompound/interfaces/CERC20.sol";
-
 abstract contract Unitroller {
     struct Market {
         bool isListed;
@@ -22,6 +20,27 @@ abstract contract Unitroller {
     mapping(address => address) public cTokensByUnderlying;
     mapping(address => uint256) public supplyCaps;
 
+    function getAccountLiquidity(address account)
+        public
+        view
+        virtual
+        returns (
+            uint256 err,
+            uint256 liquidity,
+            uint256 shortfall
+        );
+
+    function getAssetsIn(address account)
+        external
+        view
+        virtual
+        returns (address[] memory);
+
+    function enterMarkets(address[] memory cTokens)
+        public
+        virtual
+        returns (uint256[] memory);
+
     function _setPendingAdmin(address newPendingAdmin)
         public
         virtual
@@ -30,12 +49,12 @@ abstract contract Unitroller {
     function _setBorrowCapGuardian(address newBorrowCapGuardian) public virtual;
 
     function _setMarketSupplyCaps(
-        CERC20[] calldata cTokens,
+        address[] calldata cTokens,
         uint256[] calldata newSupplyCaps
     ) external virtual;
 
     function _setMarketBorrowCaps(
-        CERC20[] calldata cTokens,
+        address[] calldata cTokens,
         uint256[] calldata newBorrowCaps
     ) external virtual;
 
@@ -44,12 +63,12 @@ abstract contract Unitroller {
         virtual
         returns (uint256);
 
-    function _setMintPaused(CERC20 cToken, bool state)
+    function _setMintPaused(address cToken, bool state)
         public
         virtual
         returns (bool);
 
-    function _setBorrowPaused(CERC20 cToken, bool borrowPaused)
+    function _setBorrowPaused(address cToken, bool borrowPaused)
         public
         virtual
         returns (bool);
@@ -74,7 +93,7 @@ abstract contract Unitroller {
         returns (uint256);
 
     function _setCollateralFactor(
-        CERC20 cToken,
+        address cToken,
         uint256 newCollateralFactorMantissa
     ) public virtual returns (uint256);
 
@@ -125,7 +144,10 @@ abstract contract Unitroller {
         bool[] calldata statuses
     ) external virtual returns (uint256);
 
-    function _unsupportMarket(CERC20 cToken) external virtual returns (uint256);
+    function _unsupportMarket(address cToken)
+        external
+        virtual
+        returns (uint256);
 
     function _toggleAutoImplementations(bool enabled)
         public