JavaScript For Playwright

 

 Module 1: JavaScript Basics

• Introduction to JavaScript and its role in automation
• Setting up JavaScript environment (Node.js + VS Code)
• Understanding var, let, and const
• Data types: Number, String, Boolean, Null, Undefined, Symbol
• Type conversion and type coercion
• Basic input/output using console.log()
• Comments – single-line and multi-line

 

Module 2: Operators & Control Structures

• Arithmetic, Assignment, Comparison, Logical Operators
• Conditional statements: if, else if, else, switch
• Loops:
  • for, while, do…while
  • Loop control: break, continue

 

 Module 3: Functions and Scope

• Function declaration vs. expression
• Arrow functions (=>)
• Default parameters
• Return values and function composition
• Function scope vs block scope
• Variable hoisting
• Closures and lexical environment
• Understanding this in different contexts

 

Module 4: Arrays and Strings

• Creating and accessing arrays
• Array methods:
  • push, pop, shift, unshift
  • map, filter, reduce, find, forEach, some, every
  • includes, indexOf, slice, splice, concat, join, sort, reverse
• String manipulation:
  • split, replace, toUpperCase, toLowerCase, trim, includes

 

Module 5: Objects

• Object creation and property access
• Object methods and this context
• Object destructuring
• Nested objects and deep cloning
• Object.keys(), Object.values(), Object.entries()
• Spread operator (…) and rest operator

 

 Module 6: Modern JavaScript (ES6+ Essentials)

• Template literals
• Destructuring (arrays and objects)
• Spread/rest operators
• Shorthand property names
• Optional chaining (?.)
• Nullish coalescing operator (??)
• Dynamic property keys (computed keys)
• for…in vs for…of
• Sets and Maps (basic usage)

 

Module 7: Asynchronous JavaScript

• Synchronous vs asynchronous code
• Callbacks and callback hell
• Promises:
  • resolve, reject, .then(), .catch(), .finally()
• async and await
• Error handling in async functions (try/catch)
• Real-world async examples using setTimeout and mock fetch calls

 

 Module 8: Working with JSON and Data Handling

• What is JSON and why it’s important in test automation
• JSON structure and formatting
• JSON.stringify() and JSON.parse()
• Deep vs shallow copy
• Reading test data from JSON files (with require() in Node.js)

 Module 9: Basic File Handling in Node.js (for test data)

• fs module overview (read/write JSON/text files)
• fs.promises for async file operations
• Reading test data and writing logs/screenshots to files

 

Module 10: Debugging and Best Practices

• Debugging with console.log, breakpoints in VS Code
• Common mistakes in JavaScript and how to avoid them
• Writing clean, readable code (naming, spacing, DRY principle)
• Importance of comments and code organization
• JS linters (ESLint basics) – optional
• Introduction to modular code (using require/import)

Playwright 

 

Module 1: Introduction to Playwright

• What is Playwright and how it compares to Selenium & Cypress
• Key features: auto-waiting, multi-browser support, parallel execution
• Browsers supported (Chromium, Firefox, WebKit)
• Installing Playwright using npm
• Setting up first test (smoke test) with npx playwright codegen
• Playwright directory structure overview

 

Module 2: Locators and Interactions

• Introduction to Playwright locators
• Selecting elements:
  • By text, css, id, class, nth, role, xpath,css selectors
• Playwright Locator vs page.$(), page.$$()
• Handling dynamic elements and auto-suggestions
• Interactions:
  • click, fill, type, press, check, uncheck, selectOption
  • Keyboard and mouse actions
• Best practices for stable locators

 

Module 3: Wait Mechanisms

• Implicit wait vs Explicit wait in Playwright
• Auto-waiting mechanism
• waitForSelector, waitForTimeout, waitForResponse, waitForLoadState
• Handling slow elements or flaky tests

 Module 4: Working with Web Elements

• Handle dropdowns (static/dynamic)
• Radio buttons, checkboxes
• File upload & download
• Handling modals and pop-ups
• Shadow DOM elements
• iFrames handling
• Handling tooltips & hover states

 

Module 5: Authentication and Session Handling

• Basic Authentication via context options
• Token-based login handling (JWT/localStorage)
• Reusing login state using storage state
• Multi-tab / multi-user sessions testing

 

Module 6: Screenshots, Videos, and Reporting

• Taking screenshots:
  • Full page, element, on failure
• Recording videos of test execution
• Tracing feature in Playwright
• HTML reporting with Playwright Test Reporter

 

Module 7: Chai Mocha Assertions and Test Structure

• Introduction to Playwright Test Runner
• Writing test blocks using test(), expect()
• Grouping tests with describe()
• Hooks: beforeAll, beforeEach, afterEach, afterAll
• Soft assertions and custom messages
• Test retries and timeouts

 

Module 8: Project & Framework Setup

• Project structure and organization
• Config file setup (playwright.config.ts)
• Environment-specific config and baseURL
• Fixtures and custom test data setup
• Page Object Model (POM) implementation
• Utility functions for reusability

 

Module 9: Data-driven Testing

• Parameterized tests using test.each()
• Reading test data from JSON/CSV
• Using loops and conditions to drive test logic

 

Module 10: Parallel Testing & Test Management

• Running tests in parallel
• Sharding and parallel workers
• Tagging tests using annotations
• Skipping and isolating tests
• Filtering tests by file, tag, or name

 

 Module 11: Debugging and Troubleshooting

• Debug mode with PWDEBUG=1
• Using .pause() and playwright inspector
• Printing logs, console outputs, and page logs
• Debugging failed tests with trace viewer

 

 Module 12: Git Github and CI/CD Integration Using Jenkins

• Running Playwright tests in GitHub Actions
• Running in Jenkins using command line
• Generating test reports and storing artifacts
• Headless execution in Docker or CI environment

 

Module 13: Real-time Use Cases & Interview Readiness

• Real-time scenario: Login, search, add to cart, checkout flow
• Cross-browser and Cross Platform Testing
• Handling flaky tests and debugging failures
• Common Playwright interview questions
• Capstone project: Build and run a complete E2E test suite

 Module 14: Prompt Engineering for QA Automation

• Introduction to Prompt Engineering
  • What is prompt engineering?
  • Role in test automation and GenAI
• Types of Prompts
  • Instruction-based
  • Zero-shot vs One-shot vs Few-shot
• Best Practices for Effective Prompts
  • Clear instructions, context setting, constraints
  • Prompt templates for test case generation
• Use Cases for QA
  • Writing test cases using GenAI
  • Generating locators from UI descriptions
  • API schema → test generation
• Hands-on Practice
  • Convert user stories to test cases
  • Generate Playwright test code via ChatGPT/Copilot
  • Debug test failures using AI prompts

 Module 15: GitHub Copilot with Playwright

• Overview of GitHub Copilot
  • How Copilot works under the hood
  • Installation in VS Code
• Setting Up for QA Automation
  • Configuring Copilot in a Playwright project
  • Enabling suggestions for JS & Playwright syntax
• Writing Test Cases with Copilot
  • Smart code completion for locators, assertions
  • Test case boilerplate generation
  • Writing page objects using Copilot
• Limitations & Guardrails
  • Copilot accuracy boundaries
  • Preventing unsafe or brittle code generation
• Hands-On Lab
  • Real-time test writing with Copilot in an E2E flow
  • Use Copilot to build a custom test util/helper
  • Compare human vs AI-generated test code

 

Module 16: GenAI- ZeroStep Integration for Playwright

• What is ZeroStep?
  • AI-powered tool for natural language to code generation
  • Integrates with Playwright to auto-generate tests
• Installation & Setup
  • Installing ZeroStep CLI or browser plugin
  • Connecting to Playwright test project
• Test Generation Workflow
  • Writing natural language steps
  • Translating into structured Playwright test cases
  • Customizing generated tests
• Use Cases
  • Business analysts writing tests using plain English
  • Smoke/regression test generation from user stories
• Practical Exercises
  • Generate Playwright tests using ZeroStep
  • Refactor & enhance generated code
  • Integrate with GitHub for collaborative editing

 

Module 17: On-Cloud Deployment Using AWS (for Playwright Projects)

• Introduction to Cloud-Based Automation
  • Why deploy Playwright on cloud?
  • Common tools: EC2, Cloud Sheel, GitHub Actions
• Setting Up AWS for Playwright
  • Launching an EC2 instance
  • Installing Node.js, Playwright, and Chromium on server
• CI/CD Integration
  • Run Playwright tests via GitHub Actions
  • Headless browser testing in AWS EC2
    
    
• Scaling
  • Auto-scaling strategies for large test suites
• Hands-on
  • Deploy test project to EC2
  • Trigger test execution via GitHub Action on every push