Simplify test config, remove unused packages

Author: JustWalters

.eslintrc.js

@@ -30,9 +30,6 @@ module.exports = {
   overrides: [
     {
       files: ['test/**/*.ts'],
-      env: {
-        mocha: true,
-      },
       rules: {
         'prefer-arrow-callback': 'off',
         'func-names': 'off',

babel.config.js

@@ -2,18 +2,15 @@ import type { Config } from '@jest/types';
 
 const config: Config.InitialOptions = {
   preset: 'ts-jest',
-  testEnvironment: 'node',
   transform: {
-    '^.+\\.tsx?$': 'ts-jest',
-    '^.+\\.jsx?$': 'babel-jest',
+    '^.+\\.jsx?$': [
+      'babel-jest',
+      {
+        presets: [['@babel/preset-env', { targets: { node: 'current' } }]],
+      },
+    ],
   },
   transformIgnorePatterns: ['node_modules/(?!(axios)/)'],
-  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
-  globals: {
-    'ts-jest': {
-      isolatedModules: true,
-    },
-  },
 };
 
 export default config;