Hacker News Sorting Validator

Project Goal

This project automates the validation of the sorting order for the latest 100 articles on Hacker News. It ensures that the articles are displayed from newest to oldest, as expected.

Main Functionality

• Navigates to the Hacker News "newest" page using Playwright.
• Extracts article data (rank, id, timestamp) for at least the first 100 articles.
• Validates that:
  • Exactly 100 articles are collected.
  • Ranks from 1 to 100 are present and sequential.
  • Articles are sorted from newest to oldest by timestamp.
• Provides clear test output for each validation step.

Interesting Aspects

• Uses Playwright for browser automation and robust data extraction.
• Handles pagination to ensure exactly 100 articles are collected.
• Utilizes lodash for concise and reliable data manipulation.
• Employs dayjs for date parsing and comparison.
• Fully automated and headless, suitable for CI pipelines or local QA validation.

Stack

• Node.js
• Playwright
• Lodash
• Dayjs

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