Upgraded React and Jest packages

Author: RSlijkhuis

.babelrc

@@ -0,0 +1,3 @@
+{
+    "presets": ["@babel/preset-env", "@babel/preset-react"]
+}

__tests__/AllCheckboxEventTests.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, fireEvent, render} from "@testing-library/react";
 import React from "react";
 import {AllCheckerCheckbox, Checkbox, CheckboxGroup} from "../src";

__tests__/CheckboxAllCheckerCheckboxTest.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, render} from '@testing-library/react';
 import React from 'react';
 import {AllCheckerCheckbox, Checkbox, CheckboxGroup} from "../src";

__tests__/CheckboxDefaultsTest.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, render} from '@testing-library/react';
 import React from 'react';
 import {AllCheckerCheckbox, Checkbox, CheckboxGroup, NoneCheckerCheckbox} from "../src";

__tests__/CheckboxEventTests.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, fireEvent, render} from '@testing-library/react';
 import React from 'react';
 import {Checkbox, CheckboxGroup} from "../src";

__tests__/CheckboxNoneCheckerCheckboxTest.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, render} from "@testing-library/react";
 import React from "react";
 import {Checkbox, CheckboxGroup, NoneCheckerCheckbox} from "../src";

__tests__/DuplicateIDTest.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, render} from "@testing-library/react";
 import React from "react";
 import {AllCheckerCheckbox, Checkbox, CheckboxGroup, NoneCheckerCheckbox} from "../src";

__tests__/NoneCheckboxEventTests.tsx

@@ -1,3 +1,7 @@
+/**
+ * @jest-environment jsdom
+ */
+
 import {cleanup, fireEvent, render} from "@testing-library/react";
 import React from "react";
 import {Checkbox, CheckboxGroup, NoneCheckerCheckbox} from "../src";

jest.config.js

@@ -1,6 +1,7 @@
+const {defaults} = require('jest-config');
+
 module.exports = {
-    // Jest transformations -- this adds support for TypeScript
-    // using ts-jest
+    moduleFileExtensions: ['ts', 'tsx', ...defaults.moduleFileExtensions],
     transform: {
         "^.+\\.tsx?$": "ts-jest"
     },