Add jest in craco.config.js

Author: codeBelt

craco.config.js

@@ -13,5 +13,13 @@ module.exports = function({ env, paths }) {
         environment: path.join(__dirname, 'src', 'environments', process.env.CLIENT_ENV),
       },
     },
+    jest: {
+      configure: {
+        modulePathIgnorePatterns: ['<rootDir>/src/environments'],
+        moduleNameMapper: {
+          environment: '<rootDir>/src/environments/test',
+        },
+      },
+    },
   };
 };