MM-52213 webapp/platform/components : Add unit test framework (#23366)

webapp/platform/components/babel.config.js

@@ -11,6 +11,13 @@ const config = {
                 safari: 12,
             },
             modules: false,
+            corejs: {
+                version: "3.26",
+                proposals: true,
+            },
+            debug: false,
+            shippedProposals: true,
+            useBuiltIns: 'usage',
         }],
         ['@babel/preset-react', {
             useBuiltIns: true,
@@ -39,4 +46,12 @@ const config = {
     ],
 };
 
+config.env = {
+    test: {
+        presets: config.presets,
+        plugins: config.plugins,
+    },
+};
+config.env.test.presets[0][1].modules = 'auto';
+
 module.exports = config;