Show toolbar only on windows

.eslintrc.js

@@ -46,5 +46,8 @@ module.exports = {
             "error",
             { "ignoreRestSiblings": true }
         ]
+    },
+    "globals": {
+        "process": true
     }
 };

__tests__/src/sticker/__snapshots__/index.js.snap

@@ -0,0 +1,14 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`StickerToolbar should not render when platform is mac 1`] = `
+<div>
+  <StickerDescription />
+</div>
+`;
+
+exports[`StickerToolbar should render correct when platform is windows 1`] = `
+<div>
+  <StickerToolBar />
+  <StickerDescription />
+</div>
+`;

__tests__/src/sticker/index.js

@@ -0,0 +1,33 @@
+// @flow
+import React from 'react';
+import { shallow } from 'enzyme';
+import { Sticker } from '../../../src/sticker/html';
+
+describe('StickerToolbar', () => {
+    let originalPlatform;
+
+    beforeAll(() => {
+        originalPlatform = process.platform;
+    });
+
+    afterAll(() => {
+        Object.defineProperty(process, 'platform', {  
+            value: originalPlatform
+        });
+    });
+
+    it('should render correct when platform is windows', () => {
+        Object.defineProperty(process, 'platform', {  
+            value: 'win32'
+        });
+        expect(shallow(<Sticker/>)).toMatchSnapshot();
+    });
+
+    it('should not render when platform is mac', () => {
+        Object.defineProperty(process, 'platform', {  
+            value: 'darwin'
+        });
+        expect(shallow(<Sticker/>)).toMatchSnapshot();
+    });
+
+});

src/sticker/html/index.js

@@ -7,10 +7,20 @@ import StickerToolBar from '../../component/stickerToolbar';
 
 const app = document.getElementById('app');
 
-const Sticker = () => {
+function renderToolBarIfOnWindows() {
+    console.log('process.platform', process.platform);
+
+    if (/^win/i.test(process.platform)) {
+        return (
+            <StickerToolBar />
+        );
+    }
+}
+
+export const Sticker = () => {
     return (
         <div>
-            <StickerToolBar />
+            {renderToolBarIfOnWindows()}
             <StickerDescription />
         </div>
     );