chore(issuer): update to use regex for check date format

Author: sajclarke

packages/polymath-issuer/src/utils/parsers/index.js

@@ -131,11 +131,8 @@ export function parseWhitelistCsv(file: string) {
             return false;
           }
           if (value.split('/').length === 3) {
-            const year = value.split('/')[2];
-            if (year.length < 4) {
-              return false;
-            }
-            return moment(value, 'MM/DD/YYYY').toDate();
+            const regex = /\d\d?\/\d\d?\/\d{4}/;
+            return regex.test(value) && moment(value, 'M/D/YYYY').toDate();
           }
           if (numericalRegex.test(value)) {
             return new BigNumber(value);

packages/polymath-issuer/testUtils/fixtures/csvFiles.js

@@ -1,9 +1,9 @@
 export const validWhitelistCsv = `\
 ETH Address,Sell Restriction Date,Buy Restriction Date,KYC/AML Expiry Date,Can Buy From STO,Exempt From % Ownership,Is Accredited,Non-Accredited Limit
-0x592E80AD45c08aba6C5bBd2d5C5A097BDF35Dee1,1/1/22,6/4/24,1/1/21,TRUE,TRUE,FALSE,
-0xd9f346Bf88cA2cb7e11B0106018DE80A0169764D,12/21/30,12/21/30,10/10/24,TRUE,,TRUE,
-0xA1833Cd1a3e72335DE0b6945b5d83247F234d6e8,,,12/1/25,,TRUE,,1000
-0x07889A89C6854bb4Ec445825E680255b17751192,,,12/1/25,TRUE,TRUE,,
+0x592E80AD45c08aba6C5bBd2d5C5A097BDF35Dee1,1/1/2022,6/4/2024,1/1/2021,TRUE,TRUE,FALSE,
+0xd9f346Bf88cA2cb7e11B0106018DE80A0169764D,12/21/2030,12/21/2030,10/10/2024,TRUE,,TRUE,
+0xA1833Cd1a3e72335DE0b6945b5d83247F234d6e8,,,12/1/2025,,TRUE,,1000
+0x07889A89C6854bb4Ec445825E680255b17751192,,,12/1/2025,TRUE,TRUE,,
 `;
 
 export const invalidWhitelistCsv = `\