Add integration test for uploading a file and seeing the prompt

test/integration/menu-bar.test.js

@@ -4,9 +4,13 @@ import SeleniumHelper from '../helpers/selenium-helper';
 const {
     clickText,
     clickXpath,
+    findByText,
     findByXpath,
     getDriver,
-    loadUri
+    loadUri,
+    rightClickText,
+    scope,
+    waitUntilGone
 } = new SeleniumHelper();
 
 const uri = path.resolve(__dirname, '../../build/index.html');
@@ -74,4 +78,32 @@ describe('Menu bar settings', () => {
         await clickText('Costumes'); // just to blur the input
         await clickXpath('//input[@value="Scratch Project - Personalized"]');
     });
+
+    test('User is not warned before uploading project file over a fresh project', async () => {
+        await loadUri(uri);
+        await clickXpath('//button[@title="Try It"]');
+        await clickText('File');
+        const input = await findByXpath('//input[@accept=".sb,.sb2,.sb3"]');
+        await input.sendKeys(path.resolve(__dirname, '../fixtures/project1.sb3'));
+        await waitUntilGone(findByText('Loading'));
+        // No replace alert since no changes were made
+        await findByText('project1-sprite');
+    });
+
+    test('User is warned before uploading project file over an edited project', async () => {
+        await loadUri(uri);
+        await clickXpath('//button[@title="Try It"]');
+
+        // Change the project by deleting a sprite
+        await rightClickText('Sprite1', scope.spriteTile);
+        await clickText('delete', scope.spriteTile);
+
+        await clickText('File');
+        const input = await findByXpath('//input[@accept=".sb,.sb2,.sb3"]');
+        await input.sendKeys(path.resolve(__dirname, '../fixtures/project1.sb3'));
+        await driver.switchTo().alert()
+            .accept();
+        await waitUntilGone(findByText('Loading'));
+        await findByText('project1-sprite');
+    });
 });