Getting util test to work

BUILD

@@ -1,4 +1,5 @@
 load("@aspect_bazel_lib//lib:copy_to_bin.bzl", "copy_to_bin")
+load("@aspect_rules_js//js:defs.bzl", "js_library")
 load("@aspect_rules_js//npm:defs.bzl", "npm_link_package")
 load("@npm//:defs.bzl", "npm_link_all_packages")
 
@@ -58,6 +59,7 @@ npm_link_all_packages(name = "node_modules")
 exports_files([
     "package.json",
     "tsconfig.base.json",
+    "tsconfig.test.json",
 ])
 
 exports_files(["docs"])
@@ -72,3 +74,24 @@ copy_to_bin(
     srcs = ["tsconfig.base.json"],
     visibility = ["//visibility:public"],
 )
+
+copy_to_bin(
+    name = "tsconfig.test",
+    srcs = [
+        "tsconfig.base.json",
+        "tsconfig.test.json",
+    ],
+    visibility = ["//visibility:public"],
+)
+
+copy_to_bin(
+    name = "jest-setup",
+    srcs = ["jest-setup.js"],
+    visibility = ["//zilliqa/js/util:__subpackages__"],
+)
+
+js_library(
+    name = "jest_config",
+    srcs = ["jest.config.js"],
+    visibility = ["//visibility:public"],
+)

WORKSPACE

@@ -114,6 +114,13 @@ http_archive(
     url = "https://github.com/aspect-build/rules_js/archive/refs/tags/v1.6.6.tar.gz",
 )
 
+http_archive(
+    name = "aspect_rules_jest",
+    sha256 = "6d6303372879579cff3c615d0f53ec1cea8a919ed457ffcd375ef5ac2aaaa0b4",
+    strip_prefix = "rules_jest-0.11.1",
+    url = "https://github.com/aspect-build/rules_jest/archive/refs/tags/v0.11.1.tar.gz",
+)
+
 load("@aspect_rules_js//js:repositories.bzl", "rules_js_dependencies")
 
 rules_js_dependencies()
@@ -125,6 +132,19 @@ nodejs_register_toolchains(
     node_version = DEFAULT_NODE_VERSION,
 )
 
+load("@aspect_rules_jest//jest:dependencies.bzl", "rules_jest_dependencies")
+
+rules_jest_dependencies()
+
+# Fetches the npm packages for jest-cli.
+load("@aspect_rules_jest//jest:repositories.bzl", "jest_repositories")
+
+jest_repositories(name = "jest")
+
+load("@jest//:npm_repositories.bzl", jest_npm_repositories = "npm_repositories")
+
+jest_npm_repositories()
+
 load("@aspect_rules_js//npm:npm_import.bzl", "npm_translate_lock")
 
 npm_translate_lock(

jest-setup.js

@@ -0,0 +1,18 @@
+//  Copyright (C) 2018 Zilliqa
+//
+//  This file is part of zilliqa-js
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+// require('jest-fetch-mock').enableMocks();

jest.config.js

@@ -0,0 +1,21 @@
+//  Copyright (C) 2018 Zilliqa
+//
+//  This file is part of zilliqa-js
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+const config = {
+  testMatch: ["<rootDir>/zilliqa/js/**/test/?(*.)+(spec|test).(ts|js)"],
+};
+
+module.exports = config;

package.json

@@ -1,15 +1,16 @@
 {
   "name": "protobufjs-project",
   "dependencies": {
-    "protobufjs": "6.11.3",
-    "long": "5.2.0",
+    "@jest/expect": "^29.3.1",
+    "@jest/expect-utils": "^29.3.1",
     "@testing-library/jest-dom": "^5.11.4",
     "@testing-library/react": "^11.1.0",
     "@types/bip39": "^2.4.0",
     "@types/bn.js": "^5.1.0",
     "@types/camelcase": "^4.1.0",
     "@types/elliptic": "^6.4.14",
     "@types/hdkey": "^0.7.0",
+    "@types/jest": "^29.2.2",
     "@types/long": "^4.0.0",
     "@types/node": "^12.0.0",
     "@types/react": "^17.0.0",
@@ -20,23 +21,34 @@
     "@typescript-eslint/eslint-plugin": "^4.31.1",
     "@typescript-eslint/parser": "^4.31.1",
     "aes-js": "^3.1.1",
+    "ansi-styles": "^6.2.1",
     "bip39": "^2.5.0",
     "bn.js": "^4.11.8",
+    "buffer-from": "^1.1.2",
     "camelcase": "^5.0.0",
     "clsx": "^1.2.1",
     "cross-fetch": "2.2.5",
     "elliptic": "^6.5.0",
     "eslint": "^7.32.0",
+    "expect": "^29.3.1",
     "hash.js": "^1.1.5",
     "hdkey": "^1.1.0",
     "hmac-drbg": "^1.0.1",
-    "jest": ">=24 <25",
+    "jest": "^27.1.3",
+    "ts-jest": "^27.1.3",
+    "jest-diff": "^29.3.1",
+    "jest-environment-jsdom": "^29.3.1",
     "jest-fetch-mock": "3.0.3",
+    "jest-get-type": "^29.2.0",
+    "jest-matcher-utils": "^29.3.1",
     "long": "^4.0.0",
     "mitt": "^1.1.3",
     "mock-socket": "^9.0.2",
+    "node-fetch": "^3.2.10",
     "pbkdf2": "^3.0.16",
+    "pretty-format": "^29.3.1",
     "prism-react-renderer": "^1.3.5",
+    "protobufjs": "6.11.3",
     "rc-steps": "^3.3.1",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
@@ -55,11 +67,12 @@
     "scrypt-js": "^3.0.1",
     "semver": "^7.3.8",
     "sodium-randbytes": "0.14.0",
+    "source-map": "^0.7.4",
+    "source-map-support": "^0.5.21",
     "style-loader": "^1.0.0",
     "styled-components": "^4.3.2",
     "tailwindcss": "^3.1.8",
     "terser": ">=5.7.1 <5.9.0",
-    "ts-jest": "^24.0.2",
     "ts-loader": "8.0.4",
     "tslib": "2.3.1",
     "typescript": "^4.1.2",
@@ -74,8 +87,8 @@
     "worker-plugin": "^5.0.1"
   },
   "devDependencies": {
-    "@types/node": "18.7.18",
     "@types/long": "4.0.2",
+    "@types/node": "18.7.18",
     "@types/protobufjs": "6.0.0"
   },
   "pnpm": {