add a cypress story based test

.gitignore

@@ -0,0 +1 @@
+node_modules

.storybook/main.js

@@ -0,0 +1,27 @@
+const path = require('path');
+
+module.exports = {
+  stories: ['../src/**/*.stories.@(tsx|mdx)'],
+  logLevel: 'debug',
+  addons: [
+    '@storybook/preset-create-react-app',
+    {
+      name: '@storybook/addon-essentials',
+      options: {
+        viewport: false,
+      },
+    },
+  ],
+  webpackFinal: (config) => {
+    // add monorepo root as a valid directory to import modules from
+    config.resolve.plugins.forEach((p) => {
+      if (Array.isArray(p.appSrcs)) {
+        p.appSrcs.push(path.join(__dirname, '..', '..', '..'));
+      }
+    });
+    return config;
+  },
+  core: {
+    builder: 'webpack4',
+  },
+};

.storybook/preview.js

@@ -0,0 +1,27 @@
+import React from 'react';
+
+export const decorators = [
+  (StoryFn, { globals: { locale = 'en' } }) => (
+    <>
+      <div>{locale}</div>
+      <StoryFn />
+    </>
+  ),
+];
+
+export const globalTypes = {
+  locale: {
+    name: 'Locale',
+    description: 'Internationalization locale',
+    defaultValue: 'en',
+    toolbar: {
+      icon: 'globe',
+      items: [
+        { value: 'en', right: '🇺🇸', title: 'English' },
+        { value: 'es', right: '🇪🇸', title: 'Español' },
+        { value: 'zh', right: '🇨🇳', title: '中文' },
+        { value: 'kr', right: '🇰🇷', title: '한국어' },
+      ],
+    },
+  },
+};

cypress.json

@@ -0,0 +1,5 @@
+{
+  "fixturesFolder": false,
+  "testFiles": "**/*.test.tsx",
+  "componentFolder": "src"
+}

cypress/plugins/index.js

@@ -0,0 +1,10 @@
+const injectCraDevServer = require("@cypress/react/plugins/react-scripts");
+
+/**
+ * @type {Cypress.PluginConfig}
+ */
+module.exports = (on, config) => {
+  injectCraDevServer(on, config);
+
+  return config;
+};

cypress/support/commands.js

@@ -0,0 +1,25 @@
+// ***********************************************
+// This example commands.js shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add('login', (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add('drag', { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add('dismiss', { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })

cypress/support/index.js

@@ -0,0 +1,20 @@
+// ***********************************************************
+// This example support/index.js is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// Import commands.js using ES2015 syntax:
+import './commands'
+
+// Alternatively you can use CommonJS syntax:
+// require('./commands')

package.json

@@ -28,16 +28,21 @@
     "global": "^4.4.0",
     "react": "16.14.0",
     "react-dom": "16.14.0",
-    "react-scripts": "^4.0.2",
+    "react-scripts": "^4.0.3",
     "typescript": "^3.9.7"
   },
   "devDependencies": {
-    "@storybook/addon-essentials": "6.3.0-alpha.21",
-    "@storybook/addons": "6.3.0-alpha.21",
-    "@storybook/builder-webpack4": "6.3.0-alpha.21",
+    "@cypress/react": "^5.5.0",
+    "@cypress/webpack-dev-server": "^1.1.6",
+    "@storybook/addon-essentials": "^6.2.0",
+    "@storybook/addons": "^6.2.0",
+    "@storybook/builder-webpack4": "^6.2.0",
     "@storybook/preset-create-react-app": "^3.1.6",
-    "@storybook/react": "6.3.0-alpha.21",
-    "webpack": "4"
+    "@storybook/react": "^6.2.0",
+    "@storybook/testing-react": "^0.0.10",
+    "cypress": "^7.2.0",
+    "webpack": "4",
+    "webpack-dev-server": "3"
   },
   "storybook": {
     "chromatic": {

src/stories/Button.test.tsx

@@ -0,0 +1,10 @@
+import * as React from "react";
+import { mount } from "@cypress/react";
+import { composeStories } from "@storybook/testing-react";
+import * as rawStories from "./Button.stories";
+
+const { Primary } = composeStories(rawStories);
+
+it("playground", () => {
+  mount(<Primary />);
+});