Add test for negative balance check in _calculateNetFeesPositionUnit

Author: cgewecke

test/integration/perpV2BasisTradingSlippageIssuance.spec.ts

@@ -254,7 +254,7 @@ describe("PerpV2BasisTradingSlippageIssuance", () => {
         setToken.address,
         {
           feeRecipient: owner.address,
-          performanceFeePercentage: ether(.0),
+          performanceFeePercentage: ether(.1),
           maxPerformanceFeePercentage: ether(.2)
         }
       );
@@ -909,7 +909,12 @@ describe("PerpV2BasisTradingSlippageIssuance", () => {
 
       describe("when liquidation results in negative account value", () => {
         beforeEach(async () => {
+          // Move oracle price down, wait one day
+          await perpSetup.setBaseTokenOraclePrice(vETH, usdcUnits(10.5));
+          await increaseTimeAsync(ONE_DAY_IN_SECONDS);
+
           // Calculated leverage = ~8.5X = 8_654_438_822_995_683_587
+          // Lever again to track funding as `settled`
           await leverUp(
             setToken,
             perpBasisTradingModule,
@@ -918,9 +923,13 @@ describe("PerpV2BasisTradingSlippageIssuance", () => {
             baseToken,
             6,
             ether(.02),
+            true,
             true
           );
 
+          // Freeze funding changes
+          await perpSetup.clearingHouseConfig.setMaxFundingRate(ZERO);
+
           // Move oracle price down to 5 USDC to enable liquidation
           await perpSetup.setBaseTokenOraclePrice(vETH, usdcUnits(5.0));
 

utils/common/perpV2Utils.ts

@@ -27,7 +27,8 @@ export async function leverUp(
   baseToken: Address,
   leverageRatio: number,
   slippagePercentage: BigNumber,
-  isLong: boolean
+  isLong: boolean,
+  trackFunding?: boolean,
 ): Promise<BigNumber>{
   const spotPrice = await fixture.getSpotPrice(baseToken);
   const totalSupply = await setToken.totalSupply();
@@ -50,12 +51,21 @@ export async function leverUp(
     totalSupply
   );
 
-  await module.connect(owner.wallet).trade(
-    setToken.address,
-    baseToken,
-    baseTradeQuantityUnit,
-    receiveQuoteQuantityUnit
-  );
+  if (trackFunding) {
+    await (module as PerpV2BasisTradingModule).connect(owner.wallet).tradeAndTrackFunding(
+      setToken.address,
+      baseToken,
+      baseTradeQuantityUnit,
+      receiveQuoteQuantityUnit
+    );
+  } else {
+    await module.connect(owner.wallet).trade(
+      setToken.address,
+      baseToken,
+      baseTradeQuantityUnit,
+      receiveQuoteQuantityUnit
+    );
+  }
 
   return baseTradeQuantityUnit;
 }