Setup unit testing env

src/main/webui/.eslintrc.json

@@ -3,7 +3,8 @@
     "env": {
         "browser": true,
         "es6": true,
-        "node": true
+        "node": true,
+        "jest/globals": true
     },
     "extends": ["eslint:recommended", "plugin:react/recommended"],
     "parserOptions": {
@@ -15,7 +16,8 @@
         "requireConfigFile": false
     },
     "plugins": [
-        "react"
+        "react",
+        "jest"
     ],
     "settings": {
       "react": {

src/main/webui/jest.config.js

@@ -0,0 +1,23 @@
+//
+// Copyright (C) 2023 Red Hat, Inc. (https://github.com/Commonjava/indy-ui-service)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//         http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+/** @type {import('jest').Config} */
+const config = {
+  verbose: true,
+  testEnvironment: 'jsdom',
+};
+
+module.exports = config;