Merge pull request #695 from morpho-org/test/fix-precision-ci

Tests: fix CI with precise computations

Author: MathisGD

test/forge/BaseTest.sol

@@ -189,7 +189,7 @@ contract BaseTest is Test {
             amountBorrowed.wDivDown(marketParams.lltv).mulDivDown(ORACLE_PRICE_SCALE, priceCollateral);
         amountCollateral = bound(amountCollateral, 0, Math.min(maxCollateral, MAX_COLLATERAL_ASSETS));
 
-        vm.assume(amountCollateral > 0);
+        vm.assume(amountCollateral > 0 && amountCollateral < maxCollateral);
         return (amountCollateral, amountBorrowed, priceCollateral);
     }
 
@@ -330,13 +330,15 @@ contract BaseTest is Test {
     {
         Id _id = _marketParams.id();
 
-        uint256 collateral = morpho.collateral(_id, borrower);
         uint256 collateralPrice = IOracle(_marketParams.oracle).price();
-        uint256 maxRepaidAssets = morpho.expectedBorrowAssets(_marketParams, borrower);
+        uint256 borrowShares = morpho.borrowShares(_id, borrower);
+        (,, uint256 totalBorrowAssets, uint256 totalBorrowShares) = morpho.expectedMarketBalances(_marketParams);
+        uint256 maxRepaidAssets = borrowShares.toAssetsDown(totalBorrowAssets, totalBorrowShares);
         uint256 maxSeizedAssets = maxRepaidAssets.wMulDown(_liquidationIncentiveFactor(_marketParams.lltv)).mulDivDown(
             ORACLE_PRICE_SCALE, collateralPrice
         );
 
+        uint256 collateral = morpho.collateral(_id, borrower);
         return bound(seizedAssets, 0, Math.min(collateral, maxSeizedAssets));
     }
 

test/forge/invariant/MorphoInvariantTest.sol

@@ -170,12 +170,11 @@ contract MorphoInvariantTest is InvariantTest {
     {
         uint256 collateralPrice = oracle.price();
         uint256 liquidationIncentiveFactor = _liquidationIncentiveFactor(_marketParams.lltv);
-        Market memory _market = morpho.market(_marketParams.id());
+        (,, uint256 totalBorrowAssets, uint256 totalBorrowShares) = morpho.expectedMarketBalances(_marketParams);
         uint256 seizedAssetsQuoted = seizedAssets.mulDivUp(collateralPrice, ORACLE_PRICE_SCALE);
-        uint256 repaidShares = seizedAssetsQuoted.wDivUp(liquidationIncentiveFactor).toSharesUp(
-            _market.totalBorrowAssets, _market.totalBorrowShares
-        );
-        uint256 repaidAssets = repaidShares.toAssetsUp(_market.totalBorrowAssets, _market.totalBorrowShares);
+        uint256 repaidShares =
+            seizedAssetsQuoted.wDivUp(liquidationIncentiveFactor).toSharesUp(totalBorrowAssets, totalBorrowShares);
+        uint256 repaidAssets = repaidShares.toAssetsUp(totalBorrowAssets, totalBorrowShares);
 
         loanToken.setBalance(msg.sender, repaidAssets);