Use typescript

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "typescript.tsdk": "node_modules/typescript/lib"
+}

hardhat.config.ts

@@ -0,0 +1,34 @@
+import "@nomicfoundation/hardhat-toolbox";
+import { HardhatUserConfig } from 'hardhat/config';
+
+import dotenv from "dotenv";
+
+dotenv.config();
+
+const mainnetFork = {
+  url: `${process.env.JSON_RPC_PROVIDER}`,
+};
+
+const config: HardhatUserConfig = {
+  solidity: {
+    version: "0.8.27",
+    settings: {
+      optimizer: {
+        enabled: true,
+        runs: 2000,
+      },
+    },
+  },
+  networks: {
+    hardhat: {
+      chainId: 1,
+      forking: mainnetFork,
+      accounts: {
+        count: 3,
+      },
+    },
+  },
+};
+
+export default config;
+

package.json

@@ -7,7 +7,7 @@
   "license": "LGPL-3.0-only",
   "scripts": {
     "compile": "npx hardhat compile",
-    "test": "npx hardhat test",
+    "test": "npx hardhat test --typecheck",
     "lint": "npm run lint:solidity && npm run lint:js",
     "lint:solidity": "solhint contracts/**/*.sol",
     "lint:js": "npx eslint"

test/helpers.ts

@@ -0,0 +1,50 @@
+// The Licensed Work is (c) 2022 Sygma
+// SPDX-License-Identifier: LGPL-3.0-only
+
+import { ethers } from "ethers";
+
+const toHex = (covertThis: string | number, padding: number) : string => {
+  return ethers.zeroPadValue(ethers.toBeHex(covertThis), padding);
+};
+
+export function createERCDepositData(
+  tokenAmountOrID: number | string,
+  lenRecipientAddress: number,
+  recipientAccount: string,
+): string {
+  return (
+    "0x" +
+    toHex(tokenAmountOrID, 32).substring(2) + // Token amount or ID to deposit  (32 bytes)
+    toHex(lenRecipientAddress, 32).substring(2) + // len(recipientAccount)  (32 bytes)
+    recipientAccount.substring(2) // recipientAccount  (?? bytes)
+  );
+}
+
+export function createResourceID(
+  contractAddress: string,
+  domainID: number,
+): string {
+  return toHex(contractAddress + toHex(domainID, 1).substring(2), 32);
+}
+
+export function  createOptionalContractCallDepositData(
+  amount: number,
+  recipient: string,
+  executionGasAmount: number,
+  message: string): string {
+  return (
+    "0x" +
+    toHex(amount, 32).substring(2) + // uint256
+    toHex(recipient.substring(2).length / 2, 32).substring(2) + // uint256
+    recipient.substring(2) + // bytes
+    toHex(executionGasAmount, 32).substring(2) + // uint256
+    toHex(message.substring(2).length / 2, 32).substring(2) + // uint256
+    message.substring(2) // bytes
+  )
+}
+
+module.exports = {
+  createERCDepositData,
+  createResourceID,
+  createOptionalContractCallDepositData,
+};