fix(validator): claimable epoch calculation fix

Author: Mani Brar

validator-cli/src/utils/epochHandler.test.ts

@@ -11,7 +11,7 @@ describe("epochHandler", () => {
     const now = (currentTimestamp + mockedEpochPeriod + 1) * 1000; // In ms
     const startEpoch =
       Math.floor((currentTimestamp - (mockedSeqDelayLimit + mockedEpochPeriod + startCoolDown)) / mockedEpochPeriod) -
-      2;
+      1;
     it("should return the correct epoch range", () => {
       const mockedFetchBridgeConfig = jest.fn(() => ({
         epochPeriod: mockedEpochPeriod,
@@ -31,7 +31,7 @@ describe("epochHandler", () => {
         now,
         fetchBridgeConfig: mockedFetchBridgeConfig as any,
       });
-      expect(result[result.length - 1]).toEqual(currentEpoch - 1);
+      expect(result[result.length - 1]).toEqual(currentEpoch);
       expect(result[0]).toEqual(startEpoch);
     });
   });

validator-cli/src/utils/epochHandler.ts

@@ -41,10 +41,11 @@ const setEpochRange = ({
 
   let veaEpochOutboxClaimableNow = Math.floor(timeLocal / epochPeriod) - 1;
   // only past epochs are claimable, hence shift by one here
-  const veaEpochOutboxRange = veaEpochOutboxClaimableNow - veaEpochOutboxWatchLowerBound;
-  const veaEpochOutboxCheckClaimsRangeArray: number[] = new Array(veaEpochOutboxRange)
-    .fill(veaEpochOutboxWatchLowerBound)
-    .map((el, i) => el + i);
+  const length = veaEpochOutboxClaimableNow - veaEpochOutboxWatchLowerBound;
+  const veaEpochOutboxCheckClaimsRangeArray: number[] = Array.from(
+    { length },
+    (_, i) => veaEpochOutboxWatchLowerBound + i + 1
+  );
   return veaEpochOutboxCheckClaimsRangeArray;
 };