Solution

src/pageObject.js

@@ -1,78 +1,39 @@
 'use strict';
 
-const { Header, PageObject, ArticlePage } = require('./pageObject');
-
-const logo = 'Conduit logo';
-const url = 'http://test.com';
-const slug = '/article';
-const header = new Header();
-const page = new PageObject(url);
-const articlePage = new ArticlePage(url, slug);
-
-describe('Header class', () => {
-  it('should create an instance of Header', () => {
-    expect(header)
-      .toBeInstanceOf(Header);
-  });
-
-  it('should contain a logo element', () => {
-    expect(header.logo)
-      .toBe(logo);
-  });
-});
-
-describe('PageObject class', () => {
-  it('should create an instance of PageObject', () => {
-    expect(page)
-      .toBeInstanceOf(PageObject);
-  });
-
-  it('should contain a url property', () => {
-    expect(page.url)
-      .toBe(url);
-  });
-
-  it('should contain a header element as an instanse of Header', () => {
-    expect(page.header)
-      .toBeInstanceOf(Header);
-  });
-
-  it('should contain a "clickOnLogo" method', () => {
-    expect(page.clickOnLogo())
-      .toBe(`Click on the ${page.header.logo}`);
-  });
-});
-
-describe('ArticlePage class', () => {
-  it('should create an instance of ArticlePage', () => {
-    expect(articlePage)
-      .toBeInstanceOf(ArticlePage);
-  });
-
-  it('should extend the PageObject class', () => {
-    expect(articlePage)
-      .toBeInstanceOf(PageObject);
-
-    expect(articlePage.url).toBe(url + slug);
-  });
-
-  it('should contain a "url" property contatenated with slug', () => {
-    expect(articlePage.url)
-      .toBe(url + slug);
-  });
-
-  it('should contain a "commentButton" property', () => {
-    expect(articlePage.commentButton)
-      .toBe(`[Publish comment] button`);
-  });
-
-  it('should contain a "clickOnCommentButton" method', () => {
-    expect(articlePage.clickOnCommentButton())
-      .toBe(`Click on the ${articlePage.commentButton}`);
-  });
-
-  it('should contain a "assertPageOpened" method', () => {
-    expect(articlePage.assertPageOpened())
-      .toBe(`The ${articlePage.url} is opened`);
-  });
-});
+class Header {
+  get logo() {
+    return 'Conduit logo';
+  }
+};
+
+class PageObject {
+  constructor(url) {
+    this.url = url;
+    this.header = new Header();
+  }
+  clickOnLogo() {
+    return 'Click on the ' + this.header.logo;
+  }
+};
+
+class ArticlePage extends PageObject {
+  constructor(url, slug) {
+    super(url + slug);
+    this.slug = slug;
+  }
+  get commentButton() {
+    return '[Publish comment] button';
+  }
+  clickOnCommentButton() {
+    return 'Click on the ' + this.commentButton;
+  }
+  assertPageOpened() {
+    return 'The ' + this.url + ' is opened';
+  }
+};
+
+module.exports = {
+  Header,
+  PageObject,
+  ArticlePage,
+};