Cherrypick #5353 into release-v5.2 (#5367)

Signed-off-by: Hadrien Croubois <hadrien.croubois@gmail.com>
Co-authored-by: Ernesto García <ernestognw@gmail.com>
Co-authored-by: Francisco Giordano <fg@frang.io>

test/helpers/erc4337-entrypoint.js

@@ -0,0 +1,31 @@
+const { ethers } = require('hardhat');
+const { setCode } = require('@nomicfoundation/hardhat-network-helpers');
+const fs = require('fs');
+const path = require('path');
+
+const INSTANCES = {
+  entrypoint: {
+    address: '0x0000000071727De22E5E9d8BAf0edAc6f37da032',
+    abi: JSON.parse(fs.readFileSync(path.resolve(__dirname, '../bin/EntryPoint070.abi'), 'utf-8')),
+    bytecode: fs.readFileSync(path.resolve(__dirname, '../bin/EntryPoint070.bytecode'), 'hex'),
+  },
+  sendercreator: {
+    address: '0xEFC2c1444eBCC4Db75e7613d20C6a62fF67A167C',
+    abi: JSON.parse(fs.readFileSync(path.resolve(__dirname, '../bin/SenderCreator070.abi'), 'utf-8')),
+    bytecode: fs.readFileSync(path.resolve(__dirname, '../bin/SenderCreator070.bytecode'), 'hex'),
+  },
+};
+
+function deployEntrypoint() {
+  return Promise.all(
+    Object.entries(INSTANCES).map(([name, { address, abi, bytecode }]) =>
+      setCode(address, '0x' + bytecode.replace(/0x/, ''))
+        .then(() => ethers.getContractAt(abi, address))
+        .then(instance => ({ [name]: instance })),
+    ),
+  ).then(namedInstances => Object.assign(...namedInstances));
+}
+
+module.exports = {
+  deployEntrypoint,
+};