fix: 🐛 implement ErrorCode type for erc20 dividend checkpoint

Author: shuffledex

src/contract_wrappers/modules/checkpoint/erc20_dividend_checkpoint_wrapper.ts

@@ -26,6 +26,7 @@ import {
   Subscribe,
   GetLogs,
   Perm,
+  ErrorCode,
 } from '../../../types';
 import { numberToBigNumber, dateToBigNumber, stringToBytes32, valueToWei } from '../../../utils/convert';
 
@@ -189,7 +190,11 @@ export default class ERC20DividendCheckpointWrapper extends DividendCheckpointWr
   };
 
   public createDividend = async (params: CreateDividendParams) => {
-    assert.assert(await this.isCallerAllowed(params.txData, Perm.Admin), 'Caller is not allowed');
+    assert.assert(
+      await this.isCallerAllowed(params.txData, Perm.Admin),
+      ErrorCode.Unauthorized,
+      'Caller is not allowed',
+    );
     await this.checkIfDividendCreationIsValid(
       params.expiry,
       params.maturity,
@@ -211,7 +216,11 @@ export default class ERC20DividendCheckpointWrapper extends DividendCheckpointWr
   };
 
   public createDividendWithCheckpoint = async (params: CreateDividendWithCheckpointParams) => {
-    assert.assert(await this.isCallerAllowed(params.txData, Perm.Admin), 'Caller is not allowed');
+    assert.assert(
+      await this.isCallerAllowed(params.txData, Perm.Admin),
+      ErrorCode.Unauthorized,
+      'Caller is not allowed',
+    );
     await this.checkIfDividendCreationIsValid(
       params.expiry,
       params.maturity,
@@ -235,7 +244,11 @@ export default class ERC20DividendCheckpointWrapper extends DividendCheckpointWr
   };
 
   public createDividendWithExclusions = async (params: CreateDividendWithExclusionsParams) => {
-    assert.assert(await this.isCallerAllowed(params.txData, Perm.Admin), 'Caller is not allowed');
+    assert.assert(
+      await this.isCallerAllowed(params.txData, Perm.Admin),
+      ErrorCode.Unauthorized,
+      'Caller is not allowed',
+    );
     await this.checkIfDividendCreationIsValid(
       params.expiry,
       params.maturity,
@@ -262,7 +275,11 @@ export default class ERC20DividendCheckpointWrapper extends DividendCheckpointWr
   public createDividendWithCheckpointAndExclusions = async (
     params: CreateDividendWithCheckpointAndExclusionsParams,
   ) => {
-    assert.assert(await this.isCallerAllowed(params.txData, Perm.Admin), 'Caller is not allowed');
+    assert.assert(
+      await this.isCallerAllowed(params.txData, Perm.Admin),
+      ErrorCode.Unauthorized,
+      'Caller is not allowed',
+    );
     await this.checkIfDividendCreationIsValid(
       params.expiry,
       params.maturity,