Selenium Java & TestNG Crash Course for Automation Testers

Описание: A crash course roadmap for mastering Selenium WebDriver with Java + TestNG — tailored for testers and automation testers wanting to upskill fast.

1. Setup & Basics

Install Java JDK + set up IDE (Eclipse/IntelliJ)

Add Selenium WebDriver and TestNG dependencies via Maven/Gradle

Launch browser (Chrome/Firefox) with WebDriver, basic navigation (open URL, click element, send keys)

Locate web elements: id, name, className, linkText, cssSelector, xpath

2. Core Selenium with Java

Interact with elements: click, type, select dropdowns, checkboxes, radio buttons

Handle pop-ups/alerts, switches to new windows/tabs, frames/if rames

Use waits (implicit/explicit) to wait for conditions (visibility, clickable)

Manage browser actions: maximize, minimize, take screenshot, cookie handling

3. Introduction to TestNG

Install & configure TestNG, annotate tests using @Test, @BeforeMethod, @AfterMethod, etc

Create test suites using testng.xml, define execution order, priorities, include/exclude groups

Use assertions (hard & soft) to verify expected vs actual outcomes

Parameterize tests: @Parameters, @DataProvider for data-driven testing

Parallel execution and grouping of tests using TestNG

4. Framework Design (Automation Best Practices)

Apply Page Object Model (POM): separate page classes and test classes

Use properties/config files to store test data, URLs, credentials

Use a base test class for setup/teardown logic

Integrate logging/reporting (e.g., TestNG reports, extent reports)

Handle data-driven tests (Excel/CSV) or via TestNG DataProviders

Support cross-browser testing and parallel execution

5. Advanced Topics & Integration

Use Maven/Gradle build tools: manage dependencies, define test phases, run tests via command line

Integrate CI/CD (e.g., Jenkins): run automation suite on each build, generate reports

Use Selenium Grid or cloud services to run tests on multiple machines/browsers/environments

Error handling and test recovery: capture screenshots on failures, retry failed tests using listeners

Hybrid frameworks combining POM + data-driven + keyword-driven approaches

6. Practice & Roadmap Plan

Build mini-projects: automate login flows, form submissions, validations on a sample website

Add TestNG suite: run 5-10 test cases, use groups, priorities, data providers

Enhance framework: add configuration, logging, reporting, cross-browser support

Integrate with CI: trigger tests via command line/build server, review reports

Ongoing learning: explore new Selenium versions, TestNG features, mobile/web automation, API + UI integration

🎯 Why this matters

Automating UI tests frees you from manual repetitive checks and speeds up feedback loops

Testers with automation + framework design skills are in high demand (SDET, QA automation roles)

You’ll be able to validate not just UI flows but build robust, maintainable automation frameworks

Integration with CI/CD makes you part of the full dev-delivery pipeline, not just ad-hoc scripting

Hashtags

#Selenium, #Java, #TestNG, #AutomationTesting, #TestAutomation, #FrameworkDesign, #PageObjectModel, #DataDrivenTesting, #CI_CD, #QualityAssurance, #SDET, #WebDriver, #AutomationFramework, #CrossBrowserTesting, #LoggingAndReporting, #ContinuousIntegration, #TestNGAnnotations, #BuildTools, #AutomationSkills, #QA2026