Initial commit

.github/workflows/autograding.yml

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+name: GitHub Classroom Workflow
+
+on:
+ push:
+ branches:
+ - '*'
+ - '!badges'
+
+jobs:
+ build:
+ name: Autograding
+ runs-on: ubuntu-latest
+ steps:
+ - uses: DCI-EdTech/autograding-action@main
+ id: autograder
+ with:
+ token: ${{ secrets.AUTOGRADING }}

.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/react,node'
+# Edit at https://www.toptal.com/developers/gitignore?templates=react,node'
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+.env.production
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+### Node Patch ###
+# Serverless Webpack directories
+.webpack/
+
+### react ###
+.DS_*
+**/*.backup.*
+**/*.back.*
+
+node_modules
+
+*.sublime*
+
+psd
+thumb
+sketch
+
+# End of https://www.toptal.com/developers/gitignore/api/react,node

README.md

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+# HTML table striping
+
+Here you can practise techniques for applying more colorful striping to your tables!
+
+## Task
+
+Working in the files [index.html](./index.html) and [style.css](./style.css), create a website which meets the following requirements.
+
+## Requirements
+
+- Using the example image below as a reference, create an HTML data table shown using the `:first-child`, `:last-child`, `:nth-child` and `:not` pseudo classes
+- Use the data below to fill in your table
+- Apply background colors to the `<td>` elements
+- Use the colors: `#c0c0c0`, `#888888`, `#efefef`, `#ffbbbb`
+- Do NOT use deprecated HTML attributes. Style using CSS.
+
+### Table Data
+
+| First Name | Last Name | Role |
+| ---------- | --------- | --------- |
+| Scott | Gomez | Player |
+| Paul | Mackie | Coach |
+| Leoni | Cabrera | Assistant |
+| Gregor | Byrne | Player |
+| Francis | Shaffer | Manager |
+| Walter | Gale | Player |
+
+## Reference Image
+
+![Reference](/reference.png)

README_DE.md

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+# Grundlegende Datenübungen
+
+## Übung: Tabelle 4
+
+**Anweisungen**:
+
+1. Erstelle eine einfache HTML-Seite mit allen wichtigen Elementen, indem du die bereitgestellten Dateien `index.html` und `main.css` verwendest.
+2. Sieh dir die Mockup-Datei an und erstelle die abgebildete Tabelle mit den Pseudoklassen `:first-child`, `:last-child`, `:nth-child` und `:not`.
+3. Wende Hintergrundfarben auf die `<td>` Elemente an.
+4. Verwendete Farben sind: `#c0c0c0`, `#888888`, `#efefef`, `#ffbbbb`.
+5. Verwende KEINE veralteten HTML-Attribute. Style mit CSS.
+
+![mockup-image](image/mockup.jpg)

__tests__/task.js

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+const puppeteer = require("puppeteer");
+const path = require("path");
+const fs = require("fs");
+
+const browserOptions = {
+ headless: true,
+ ignoreHTTPSErrors: true,
+ defaultViewport: null,
+ devtools: false,
+};
+let browser;
+let page;
+
+beforeAll(async () => {
+ browser = await puppeteer.launch(browserOptions);
+ page = await browser.newPage();
+ await page.goto("file://" + path.resolve("./index.html"));
+}, 30000);
+
+afterAll((done) => {
+ try {
+ this.puppeteer.close();
+ } catch (e) {}
+ done();
+});
+
+describe("Table", () => {
+ it("Table exists", async () => {
+ const table = await page.$("table", (el) => el.innerHTML);
+ expect(table).toBeTruthy();
+ });
+
+ it("Table has table head", async () => {
+ const tableHeaders = await page.$$("table th");
+ expect(tableHeaders.length).toBeTruthy();
+ });
+
+ it("Table has 'First Name', 'Last Name' and 'Role' column headers", async () => {
+ const table = await page.$("table", (el) => el.innerHTML);
+ const firstName = await table.$x(
+ '//th[text()[contains(translate(., "FIRSTNAME", "firstname"),"first name")]]'
+ );
+ expect(firstName.length).toBeTruthy();
+ const lastName = await table.$x(
+ '//th[text()[contains(translate(., "LASTNAME", "lastname"),"last name")]]'
+ );
+ expect(lastName.length).toBeTruthy();
+ const role = await table.$x(
+ '//th[text()[contains(translate(., "ROLE", "role"),"role")]]'
+ );
+ expect(role.length).toBeTruthy();
+ });
+
+ it("Table has 7 rows in total", async () => {
+ const table = await page.$("table", (el) => el.innerHTML);
+ const rows = await table.$$("tr");
+ expect(rows.length).toBe(7);
+ });
+
+ it("Table contains correct number cells", async () => {
+ const table = await page.$("table", (el) => el.innerHTML);
+ const cells = await table.$$("td");
+ expect(cells.length).toBe(18);
+ });
+});
+describe("Styling the table", () => {
+ it("`:first-child` should be used to style the first row", async () => {
+ // first row should has a different background color than the rest of the rows
+ // get all computed styles for all rows
+ const rows = await page.evaluate(() => {
+ const allRows = document.querySelectorAll("tr");
+ // get computed styles for each row
+ const allComputedStyles = Array.from(allRows).map((row) =>
+ window.getComputedStyle(row)
+ );
+ // return the first computed style for each row
+ return allComputedStyles.map((style) =>
+ style.getPropertyValue("background-color")
+ );
+ });
+ // check that the first row has a different background color than the rest of the rows
+ expect(rows[0]).not.toBe(rows[1]);
+ // get main.css file as a string
+ const style = fs.readFileSync(path.resolve("./main.css"), "utf8");
+ // it should contain the `:first-child` selector
+ expect(style).toContain(":first-child");
+ });
+ it("`style`, `class`, and `id` attributes should not be applied to the table's child elements", async () => {
+ // get all table child elements
+ const table = await page.$("table", (el) => el.innerHTML);
+ const idAttr = await table.$$eval("*", (el) =>
+ Array.from(el)
+ .map(
+ (child) =>
+ child.getAttribute("id") ||
+ child.getAttribute("class") ||
+ child.getAttribute("style")
+ )
+ .filter((e) => e !== null)
+ );
+ expect(idAttr.length).toBe(0);
+ });
+ it("`:nth-child` should be used to style the rows", async () => {
+ const style = fs.readFileSync(path.resolve("./main.css"), "utf8");
+ // it should contain the `:nth-child` selector
+ expect(style).toMatch(/tr:nth-child/i);
+ });
+ it("The table should use three different background colors", async () => {
+ // get all background colors
+ const backgroundColors = await page.evaluate(() => {
+ const allRows = document.querySelectorAll("tbody tr, tbody td");
+ // get computed styles for each row
+ const allComputedStyles = Array.from(allRows).map((row) =>
+ window.getComputedStyle(row)
+ );
+ // return the first computed style for each row
+ return allComputedStyles.map((style) =>
+ style.getPropertyValue("background-color")
+ );
+ });
+ // remove duplicates
+ const uniqueBackgroundColors = [...new Set(backgroundColors)];
+ // check that there are three different background colors
+ expect(uniqueBackgroundColors.length).toBeGreaterThanOrEqual(3);
+ });
+});