Add tests for Map components

packages/learn/jest.config.js

@@ -0,0 +1,13 @@
+module.exports = {
+  moduleNameMapper: {
+    "\\.(jpg|jpeg|png|svg|woff|woff2)$": "<rootDir>/src/__mocks__/fileMock.js",
+    // Plain CSS - match css files that don't end with '.module.css' https://regex101.com/r/VzwrKH/4
+    "^(?!.*\\.module\\.css$).*\\.css$": "<rootDir>/src/__mocks__/styleMock.js",
+    // CSS Modules - match files that end with 'module.css'
+    "\\.module\\.css$": "identity-obj-proxy" // CSS modules
+  },
+  testPathIgnorePatterns: ["/node_modules/", "<rootDir>/.cache/"],
+  globals: {
+    __PATH_PREFIX__: ""
+  }
+};