#1 Add some more test coverage

tests/todomvc.test.js

@@ -1,9 +1,11 @@
 const input = 'header input';
 const listItem = '.todo-list li';
 const firstItem = listItem + ':nth-of-type(1)';
+const firstItemInput = firstItem + ' > input';
 const firstItemToggle = firstItem + ' .toggle';
 const firstItemRemoveButton = firstItem + ' button';
 const secondItem = listItem + ':nth-of-type(2)';
+const secondItemInput = secondItem + ' > input';
 const todoCount = '.todo-count';
 
 const puppeteer = require('puppeteer');
@@ -14,6 +16,7 @@ let browser;
 let extensions;
 let page;
 
+// Notice how you have to add all this boilerplate to every test file. This is what Muppeteer solves.
 beforeAll(async () => {
     serverInstance = await server.start(3000);
     browser = await puppeteer.launch();
@@ -27,24 +30,33 @@ afterAll(async () => {
     server.stop(serverInstance);
 });
 
+// Note this test is not super realistic but just a way to test all API functions
 describe('Add a todo item', () => {
+    it('input field is focused', async() => {
+        const inputEl = await page.$(input);
+        await inputEl.focus();
+        expect(await extensions.isElementFocused(input)).toBe(true);
+    });
     it('typing text and hitting enter key adds new item', async () => {
         await page.waitForSelector(input);
         await page.type(input, 'My first item');
         await page.keyboard.press('Enter');
         await page.waitForSelector(firstItem);
         expect(await extensions.getText(firstItem)).toBe('My first item');
+        expect(await extensions.getValue(firstItemInput)).toBe('My first item');
     });
     it('clicking checkbox marks item as complete', async () => {
         await page.waitForSelector(firstItemToggle);
         await page.click(firstItemToggle);
         await extensions.waitForNthSelectorAttributeValue(listItem, 1, 'class', 'completed');
+        expect(await extensions.getPropertyValue(firstItem, 'className')).toBe('completed');
     });
     it('typing more text and hitting enter adds a second item', async () => {
         await page.type(input, 'My second item');
         await page.keyboard.press('Enter');
         await page.waitForSelector(secondItem);
         expect(await extensions.getText(secondItem)).toBe('My second item');
+        expect(await extensions.getValue(secondItemInput)).toBe('My second item');
     });
     it('hovering over first item shows x button', async () => {
         await page.hover(firstItem);
@@ -57,4 +69,3 @@ describe('Add a todo item', () => {
 });
 
 
-